MECH VAN CATALOGUE.pdf

COMPANY HISTORY 1960 Business Started 1962 from Grey Iron Pot 1963 1964 1965 1966 1967 1968 1969 Malleable Iron Pipe 1970 Fittings 1971 1972 1973 1974 Malleable Iron Pipeclamp 1976 Fittings 1977 1978 1979 1980 Ductile Iron Pipe 1982 Fittings 1983 1984 1985 1986 1987 1988 1989 Cast Iron Fittings Export, Main Market: Southeast Asia 1981 1975 1961 1990 Pipe Hangers and Brackets 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Electric Power Fittings 2008 2009 2010 2011 Valve Business Development Ductile Iron Grooved Fittings Bronze Fittings, Ball Valves Steel Pipe Nipples Red Brass Pipe Nipples Self Export, Developped US and European Market Extra-heavy 2012 Brass Pipe Nipples Steel Pipe 2013 Development . . . handwheel and operating nut are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance. 4. BS 5163 Flanged Resilient NRS Gate Valve Type A T Key (Z45X) PN10/16. please indicate clearly on the inquiry or order list.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 9 10 11 12 13 14 15 16 17 Note: For special material request other than standard specification.5 26. bonnet. Wedge & Operating Nut in Ductile Iron • Triple O-ring Stem Seals • Stainless Steel Stem and Brass Thrust Collar • Bronze Alloy Wedge Nut • Fusion Bonded Epoxy Coating • Connection Ends: Flange to BS EN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: 0℃. 2. sewage disposal. SS316. SS431.000 cycles of operation at a maximum rate of 6 cycles of operation per minute from fully closed to fully open and from fully open to fully closed positions under cycled hydrostatic pressure. SS316 Options Z45X • Body. • Features: 1. SS316 SS304. Al-bronze SS304. air conditioning. Fusion Bonded Epoxy Coating Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance. Material: Ductile Iron EN-GJS-450-10 Body. fire protection as well as chemical and energy industry. UL/FM Approved MATERIAL SPECIFICATION Part No. 5. widely used in the field of potable water. 14" 16" 18" 20" 24" IP Vertical Indicator Post 10 11 . Triple O-ring Stem Seals The lower O-ring isolates the stem thrust collar bearing area from the waterway. Brass Thrust Collar and Bronze Wedge Nut This life-tested MEIDE design has repeatedly proven its superior strength and abrasive resistance. 3. 1 2 3 4 5 6 7 8 Part Valve Body Resilient Wedge Disc Stem Nut Bonnet O-Ring Gland Handwheel Bolt Flat Washer Ring Wiper Bolt Flat Washer O-Ring Thrust Washer Bonnet Gasket Wedge Nut Standard Specification EN-GJS-450-10 EN-GJS-450-10+EPDM SS420 Carbon Steel Zinc Plated EN-GJS-450-10 NBR EN-GJS-450-10 EN-GJS-450-10 Carbon Steel Zinc Plated Carbon Steel Zinc Plated NBR Carbon Steel Zinc Plated Carbon Steel Zinc Plated NBR Brass HPb59-1 EPDM Brass HPb59-1 NBR Bronze ZQSn5-5-5 Pressed Steel SS304. SS316 SS304.5 28 30 31.5" 3" 4" 5" 6" 8" 10" 12" mm 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN 10/16 10/16 10/16 10/16 10/16 10/16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 Dimensions(mm) L 178 190 203 229 254 267 292 330 356 381 406 650 700 800 H 218 232 281 316 393 420 490 626 722 800 870 1150 1250 1350 D 165 185 200 220 250 285 340 405 460 520 580 640 715 840 D1 125 145 160 180 210 240 295 350 355 400 410 460 470 515 525 565 585 620 650 725 770 d 99 118 132 156 184 211 266 319 370 428 480 548 609 720 C 19 19 19 19 19 19 20 22 24. Stainless Steel Stem.BS VALVES BS 5163 Resilient Wedge Gate Valve • Statement: Gate valves serve to cut the medium flow in the piping system. wedge. Long Service Life with Resilient Seat Cycling Test 1. Bonnet.5 36 T 3 3 3 3 3 3 3 3 4 4 4 4 4 4 n-d 4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ19 8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 20-Φ28 20-Φ31 20-Φ28 20-Φ34 20-Φ31 20-Φ37 Z45X Flanged Resilient NRS Gate Valve Type A Page 11 Z45XB Flanged Resilient NRS Gate Valve Type B Page 12 Z41X Z85X Flanged Resilient OS&Y Gate Valve Grooved Resilient NRS Gate Valve Page 13 Page 14 Z45X-1 Z45XC Z81X Grooved Resilient OS&Y Gate Valve Page 15 Z45XC-2 Flanged Resilient NRS Gate Valve with Post Flange SMC XZA Details for electric drive available upon request.000 times The Valve has been subjected to 1. SS316 EPDM EPDM SS304. water supply and drainage. irrigation. DN Inch 2" 2. SS316 EPDM SS304. The upper two O-rings can easily be replaced in the line while the valve is under pressure in the open position. Al-bronze SS304. Al-bronze 4 Bonnet Gasket EPDM NBR 5 Bonnet EN-GJS-450-10 6 O-Ring NBR EPDM 7 Gland EN-GJS-450-10 8 Handwheel EN-GJS-450-10 Pressed Steel 9 Bolt Carbon Steel Zinc Plated SS304.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 Note: For special material request other than standard specification.5 26. SS316 11 Ring Wiper EPDM NBR 12 O-Ring NBR EPDM 13 Nut Carbon Steel Zinc Plated SS304.BS VALVES BS 5163 Flanged Resilient NRS Gate Valve Type B Ring Key and Bar (Z45XB) PN10/16. mm 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 L 178 190 203 229 254 267 292 330 356 381 406 650 700 800 H 254 275 301 355 393 448 548 626 722 800 870 1150 1250 1350 D 165 185 200 220 250 285 340 405 460 520 580 640 715 840 Dimensions(mm) D1 d 125 145 160 180 210 240 295 350 355 400 410 460 470 515 525 565 585 620 650 725 770 99 118 132 156 184 211 266 319 370 428 480 548 609 720 C 19 19 19 19 19 19 20 22 24.5 28 30 31. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Part Valve Body Resilient Wedge Disc O-ring Stem Nut Bonnet Stem Bushing Gland Flat Washer Stud Nut Yoke Nut Washer Locknut Handwheel Stem Packing Bonnet Gasket Standard Specification EN-GJS-450-10 EN-GJS-450-10+EPDM NBR SS420 Carbon Steel Zinc Plated EN-GJS-450-10 Brass Hpb59-1 EN-GJS-450-10 Carbon Steel Zinc Plated Carbon Steel Zinc Plated Carbon Steel Zinc Plated EN-GJS-450-10 Brass Hpb59-1 Brass Hpb59-1 Carbon Steel Zinc Plated EN-GJS-450-10 NBR EPDM Pressed Steel EPDM NBR SS304. SS316 Options Z45XB Z41X • Connection Ends: Flange to BS EN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: 0℃. Part Standard Specification Options 1 Valve Body EN-GJS-450-10 2 Resilient Wedge disc EN-GJS-450-10+EPDM 3 Stem SS431 SS304. UL/FM Approved MATERIAL SPECIFICATION Part No.5" 3" 4" • Connection Ends: Flange to BS EN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: 0℃. UL/FM Approved BS 5163 Flanged Resilient OS&Y Gate Valve (Z41X) PN10/16.5 28 30 T 3 3 3 3 3 3 3 3 4 4 4 4 n-φL 4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ19 8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 20-Φ28 20-Φ31 Z45XB-1 Z45XBC 5" 6" 8" 10" 12" 14" 16" 18" 20" 24" 12 13 . SS316 SS304. DN mm 50 65 80 100 125 150 200 250 300 350 400 450 PN 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 L 178 190 203 229 254 267 292 330 356 381 406 650 H1 (Close) 257 305 350 422 515 563 675 905 1030 1210 1280 1700 H2 (Open) 307 370 430 522 640 713 875 1155 1330 1560 1680 2150 D 165 185 200 220 250 285 340 405 460 520 580 640 Dimensions(mm) D1 125 145 160 180 210 240 295 350 355 400 410 460 470 515 525 565 585 d 99 118 132 156 184 211 266 319 370 429 480 548 C 19 19 19 19 19 19 19 22 24. SS316 14 Axis guide Brass Hpb59-1 15 Washer Brass Hpb59-1 16 O-Ring NBR EPDM 17 Nut Carbon Steel Zinc Plated SS304. SS316 SS304.5 26.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 DN Inch 2" 2. please indicate clearly on the inquiry or order list. SS316 18 Wedge nut Brass Hpb59-1 Bronze ZQSn5-5-5 Note: For special material request other than standard specification. SS16. SS316.5 36 T 3 3 3 3 3 3 3 3 4 4 4 4 4 4 n-φL 4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ19 8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 20-Φ28 20-Φ31 20-Φ28 20-Φ34 20-Φ31 20-Φ37 Inch 2" 2. please indicate clearly on the inquiry or order list.5" 3" 4" 5" 6" 8" 10" 12" 14" 16" 18" MATERIAL SPECIFICATION Part No. SS316 EPDM SS304. SS316 10 Flat Washer Carbon Steel Zinc Plated SS304. 88 15.88 15.3 219.1 88.7 69. Dimensions(mm) L 178 H1(Close) 257 H2(Open) 307 OD 60.88 15.88 9.15 A 15.70 12.88 15.92 7.92 9. 1 2 3 Part Valve Body Resilient Wedge Disc Stem Nut Bonnet O-Ring Gland Handwheel Bolt Flat Washer Ring Wiper Bolt Flat Washer O-Ring Washer Bonnet Gasket Wedge Nut Standard Specification EN-GJS-450-10 EN-GJS-450-10+EPDM SS420 Carbon Steel Zinc Plated EN-GJS-450-10 NBR EN-GJS-450-10 EN-GJS-450-10 Carbon Steel Zinc Plated Carbon Steel Zinc Plated NBR Carbon Steel Zinc Plated Carbon Steel Zinc Plated NBR Brass HPb59-1 EPDM Brass HPb59-1 NBR Bronze ZQSn5-5-5 Pressed Steel SS304.70 5" 6" 125 150 254 267 516 563 640 713 141.52 9.88 15.52 9.70 12.94 110.08 135.13 12.92 7.88 B 7.88 15.5" 3" 4" 5" 65 65 80 100 125 190 190 203 229 254 305 305 350 422 516 370 370 430 522 640 73 76.88 7.40 268.03 160. SS316.05 9.7 69.0 323.48 15. SS316 SS304.92 2.3 d 57.05 19.88 15.52 9.28 318.52 6" 8" 10" 12" 150 200 250 300 267 292 330 356 420 490 626 722 168.26 84.05 19.52 Z55X 2.70 14 15 .90 15.1 137.15 A 15.92 DN Inch 2" mm 50 Note: For special material request other than standard specification.88 19.05 9.3 219.88 9.52 5" 6" 125 150 254 267 393 420 141.3 139. SS316 SS304.88 15.03 160.5" 2.0 323. SS316 SS304. SS316 Options MATERIAL SPECIFICATION Part No.48 15.BS VALVES BS 5163 Grooved Resilient NRS Gate Valve (Z85X).88 15.90 15. SS316 EMDM EPDM SS304.52 9.9 114.92 7.9 163.26 84. please indicate clearly on the inquiry or order list. PN10/16 BS 5163 Grooved Resilient OS&Y Gate Valve (Z81X). 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Part Valve Body Resilient Wedge Disc O-Ring Stem Nut Bonnet Stem Bushing Gland Flat Washer Stud Nut Yoke Stem Nut Washer Locknut Handwheel Stem Packing Bonnet Gasket Standard Specification EN-GJS-450-10 EN-GJS-450-10+EPDM NBR SS420 Carbon Steel Zinc Plated EN-GJS-450-10 Brass Hpb59-1 EN-GJS-450-10 Carbon Steel Zinc Plated Carbon Steel Zinc Plated Carbon Steel Zinc Plated EN-GJS-450-10 Brass Hpb59-1 Brass Hpb59-1 Carbon Steel Zinc Plated EN-GJS-450-10 NBR EPDM Pressed Steel EPDM NBR Bronze ZQSn5-5-5 SS304. SS316 EPDM SS304.29 15.94 110.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request Note: For special material request other than standard specification. Al-bronze SS304.3 165.1 88.92 7.09 72. PN10/16 MATERIAL SPECIFICATION Part No. Al-bronze SS304.3 d 57.09 72.05 19.40 268. please indicate clearly on the inquiry or order list.96 214.1 273.52 11.88 15.88 19.1 273.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request 7 8 9 10 11 12 13 14 15 16 17 • Connection Ends: Groove to ISO 6182 • Working Pressure: PN10/PN16 • Temperature Range: 0℃.88 B 7. DN Inch 2" mm 50 L 178 H 218 Dimensions(mm) OD 60.13 12.28 318. SS316 Options Z85X 4 5 6 Z81X • Connection Ends: Groove to ISO 6182 • Working Pressure: PN10/PN16 • Temperature Range: 0℃. SS316.92 9.88 7.3 139. SS316 EPDM SS304.9 163.96 214.9 114.08 135.29 15.52 6" 8" 10" 12" 150 200 250 300 267 292 330 356 563 675 904 1030 713 875 1158 1335 168.5" 3" 4" 5" 2.3 165.1 137. SS316 SS304.52 11.05 19.5" 65 65 80 100 125 190 190 203 229 254 230 230 281 316 393 73 76. makes it suitable to be applied under different working conditions.5 153 157.BS VALVES BS EN 593 Resilient Centerline Butterfly Valve • Statement: Resilient centerline butterfly valves usually serve to cut off medium flow in the piping system. parallel or diagonal square or flat head • Working Pressure: PN10/PN16 • Temperature Range: 0℃. Design: Universal flange connection to BS EN 1092 PN6/10/16.53 9. etc. rubber vulcanized on valve body and boot rubber seat. 2.3 301. GB9113. SS316. Soft Seat in EPDM/NBR.53 11.5" 3" 4" 5" 6" 8" 10" Dimensions(mm) V 32 32 32 32 32 32 32 45 45 45 45 48 XD371X4 Φ2 12. 3.5 243.45 9.5 176 191 202. sewage disposal. JIS B2112 10K.9 53. D371X4. NBR or Fluororubber. air conditioning.7 253.53 9. SS431 EPDM PTFE Aluminum Options D71X4 5 6 7 • Design Standard: BS EN 593 • Connection Ends: BS EN 1092 PN10/PN16. e. JIS B2212 10K. SS304.g. and pneumatic drive. 1 2 3 4 • Ductile Iron Lever and Body • Stainless Steel Stem • Fusion Bonded Epoxy Coating • Disc: DI. Al-bronze. water supply and drainage.9 65. AS 2129 Table E. AS 2129 TABLE E.1 22.1 CLASS 125/150.14 11.2 79.9 333.5 64. Material: Body and lever are all produced in ductile iron material (EN-GJS-450-10) which provides guarantee for high strength and good corrosion resistance.6 33. EPDM/NBR Vulcanized on Valve Body.14 12. 12" 14" 16" Note: Not designed for dead end service 16 17 . SS416. seat in EPDM. Nylon 11 coating is thermoplastic plant coating approved by USDA with high corrosion resistance and antisepsis which can be applied where there is strict requirement for anticorrosion. different series of stainless steel. Different options of operation including lever handle.6 20. ANSI B16. Different options of rubber seat including insert rubber seat. Different options of the disc and seat. PN10/16 MATERIAL SPECIFICATION Part No.5" 2" 2. disc of DI nickel or nylon 11 coated. factory is also able to supply Nylon 11 coated disc.7 20. The design of the butterfly valves. gear box with tamper switch. BS 10 TABLE D/E • Top Flange Standard: ISO 5211 Stem drive by keys. widely applied in the field of potable water. irrigation. gear box. electric drive. fire protection as well as chemical and energy industry. To achieve higher corrosion resistance. SS316.7 105 130 156 206. BS 10 Table D/E. XD371X4). however. • Features: 1.1 27 L 267 267 267 267 267 267 267 356 356 490 — — ISO 5211 F07 F07 F07 F07 F07 F07 F07 F10 F10 F10 F12 F14 D71X4 Wafer Butterfly Valve Page 17 D71XL4 Lugged Wafer Butterfly Valve Page 18 D41X4 Flanged Butterfly Valve Page 19 D81X4 Grooved Butterfly Valve Page 20 Details for electric drive available upon request.6 D1 110 125 145 160 180 210 240 295 355 410 470 525 1.5 273 311 340 400 B 64. Stainless Steel or Al-bronze • Seat: EPDM/NBR/Fluororubber with backing Part Valve Body Seat Disc Stem O-Ring Bushing Lever Standard Specification EN-GJS-450-10 EPDM & Backing EN-GJS-450-10 SS420 NBR Nylon 1010 EN-GJS-450-10 NBR/Fluororubber & Backing. AL-Bronze UNC 95400 SS304. Coating Fusion bonded epoxy coating of valve body and lever provides reliable corrosion resistance.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 Note: For special material request other than standard specification.6 14 14 14 16 16 20 26 26 28 31.5 72 86 100 112 128 162 194 223 267 300 C 33 43 46 46 52 56 56 60 68 78 78 102 D 43.6 22. BS EN 593 Wafer Butterfly Valve (D71X4. please indicate clearly on the inquiry or order list.2 N-Φ 4-Φ19 4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ19 8-Φ23 12-Φ23 12-Φ28 12-Φ28 16-Φ28 16-Φ31 G 9.9 389. makes it also suitable to serve as adjusting valve. D371X4 DN Inch mm 40 50 65 80 100 125 150 200 250 300 350 400 A 138 140. 7 253. Note: For special material request other than standard specification.53 9.14 11.6 22.BS VALVES BS EN 593 Lugged Wafer Butterfly Valve (D71XL4. EPDM/NBR Vulcanized on Valve Body. SS316. parallel or diagonal square or flat head • Working Pressure: PN10/PN16 • Temperature Range: 0℃.3 301.7 20.7 ΦE 70 70 70 70 70 70 102 102 102 125 140 ΦE 140 140 165 254 254 ΦK 90 90 90 90 90 90 125 125 125 150 175 ΦK 175 175 210 300 300 n-ΦD2 4-Φ10 4-Φ10 4-Φ10 4-Φ10 4-Φ10 4-Φ10 4-Φ12 4-Φ12 4-Φ12 4-Φ14 4-Φ18 n-ΦD2 4-Φ18 4-Φ18 4-Φ22 8-Φ18 8-Φ18 ISO5211 F07 F07 F07 F07 F07 F07 F10 F10 F10 F12 F14 ISO5211 F14 F14 F16 F25 F25 ΦF 14 14 14 16 16 20 26 26 28 31.5" 3" 4" 5" 6" 8" 10" 12" 14" mm 50 65 80 100 125 150 200 250 300 350 A 140.14 12. please indicate clearly on the inquiry or order list. D341X4). SS431 EPDM PTFE Aluminum D71XL4 • Design Standard: BS EN 593 • Connection Ends: BS EN 1092 PN10/PN16 • Top Flange Standard: ISO 5211 Stem drive by keys.6 20.6 592.5 72 86 100 112 128 162 194 223 267 C 43 46 46 52 56 56 60 68 78 78 D 53.7 105 130 156 206.1 L 267 267 267 267 267 267 356 356 490 ISO 5211 F07 F07 F07 F07 F07 F07 F10 F10 F10 F12 D341X4 DN Inch 2" 2.9 333.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 4 5 6 7 Note: For special material request other than standard specification. SS316. SS416.5 153 157.53 11.6 NXM 4XM16 4XM16 8XM16 8XM16 8XM16 8XM20 12XM20 12XM24 12XM24 16XM24 G 9. 1 2 Part Valve Body Seat Disc Stem O-Ring Bushing Lever Standard Specification EN-GJS-450-10 EPDM & Backing EN-GJS-450-10 SS420 NBR Nylon 1010 EN-GJS-450-10 NBR/Fluororubber & Backing.5 30 32. D371XL4).5 63.53 9. SS416. PN10/16 BS EN 593 Flanged Butterfly Valve (D41X4. PN10/16 MATERIAL SPECIFICATION Part No.5 26.9 65.5 243.6 ΦD 440.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 DN Inch 2" 2. 1 2 3 Part Valve Body Seat Disc Stem O-Ring Bushing Lever Standard Specification EN-GJS-450-10 EPDM EN-GJS-450-10 SS420 NBR Nylon 1010 EN-GJS-450-10 Options 　 NBR SS304. SS316. Soft Seat in EPDM/NBR. SS316.5 491.5" 3" 4" 5" 6" 8" 10" 12" 14" 16" Inch 18" 20" 24" 28" 32" mm 50 65 80 100 125 150 200 250 300 350 400 mm 450 500 600 700 800 L1 108 112 114 127 140 140 152 165 178 190 216 L1 222 229 267 292 318 H1 80 80 95 113 114 139 175 203 242 250 277 H1 295 330 420 450 501 H2 110 131 134 150 170 180 210 245 276 328 376 H2 407 448 518 560 620 H3 32 32 32 32 32 32 45 45 45 45 51 H3 51 64 70 66 66 ΦA 165 185 200 220 250 285 340 405 460 520 580 ΦA 615 670 780 895 1015 B 19 19 19 19 19 19 20 22 24.5 695 794. AL-Bronze UNC 95400 SS304.1 27 G 27 27 ---L 267 267 267 267 267 267 356 356 490 --L ------ D371XL4 18 19 . parallel or diagonal square or flat head • Working Pressure: PN10/PN16 • Temperature Range: 0℃.2 79.15 ΦF 38 41.5 273 311 340 3 4 5 6 7 D41X4 • Design Standard: BS EN 593 • Face to Face: BS EN 558 Series 13 • Connection Ends: BS EN 1092 PN10/PN16 • Top Flange standard: ISO 5211 Stem drive by keys.65 63.2 79.53 9.9 65.5 G 9.7 253.15 50. SS431 EPDM PTFE Aluminum Options MATERIAL SPECIFICATION Part No.14 11.9 D1 125 145 160 180 210 240 295 355 410 470 V 32 32 32 32 32 32 45 45 45 45 Φ2 14 14 14 16 16 20 26 26 28 31.5 24.9 333. AL-Bronze UNC 95400 SS304.5 176 191 202.5 35 ΦC PN16 125 145 160 180 210 240 295 355 410 470 525 ΦC PN10 565 620 725 840 950 20-Φ28 20-Φ28 20-Φ31 24-Φ31 24-Φ34 4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ19 8-Φ23 12-Φ23 12-Φ28 12-Φ28 16-Φ28 16-Φ31 n-Φ1 Dimensions(mm) n-Φ1 ΦD 53. SS304.7 105 130 156 206.6 22.3 301. Dimensions(mm) B 64.1 22.14 12.53 11.6 33.5 389.5 24.6 20.7 20.1 22. please indicate clearly on the inquiry or order list.5 B 25.53 9. 87 361.09 72.14 11. SS316.04 Pipe Diameter Flow Coefficient (Fully Open) D381X4 DN Inch 2" mm 50 L1 81 L2 15.9 15.53 9.80 512.06 103.00 1200.6 22.9 15.53 2.1 122.50 2658.96 214.80 3073.3 70 Dimensions(mm) ΦE ΦK 90 n-Φ1 4-Φ10 XD381X4 Φ2 14 ISO 5211 F07 H1 65 H2 89 H3 32 G 9.1 19.29 168.7 F07 F07 6" 8" 10" 12" 150 200 250 300 148 133 159 165 15.5 Q = Flow Rate (gal/min) △P = Pressure Drop Across Valve (1bf/in2) Kv=Cv/1. D381X4.04 4'' 100 4.0 76.156 MATERIAL SPECIFICATION Part No.9 9. SS416 Aluminum D81X4 2 3 4 5 6 7 • Design Standard: BS EN 593 • Connection Ends: Groove to ISO 6182 • Top Flange standard: ISO 5211 Stem drive by keys. SS416 EPDM SS304.3 219. PN10/16 Butterfly Valve Performance Data Cv = Flow Coefficient Formulas for Cv Values: Cv=Q/(△P)0.1 27 F07 F10 F10 F10 Note: Valve must not be installed with disc in full open position.7 163.57 6'' 150 6.BS VALVES BS EN 593 Grooved Butterfly Valve (D81X4.3 165.53 11.06 77.80 5101.48 3'' 80 3.7 20.14 F07 F07 F07 F07 F07 5" 6" 125 150 148 148 15.9 L3 7. Disc must be partly closed so that no part is protruding beyond end of valve body.06 52.86 1503.1 12.34 8'' 200 8.90 251.55 246.9 114.3 ΦD 50.95 12'' 300 11.5" 3" 4" 5" 65 65 80 100 125 97 97 97 116 148 15.5 11.9 7.1 88.59 1038. SS316.35 4140.9 9.14 12.53 9.9 19.9 ΦB 57.06 154.9 148 199 252 300.9 15.0 323.4 148 70 70 90 90 4-Φ10 4-Φ10 111 133 141 153 32 32 16 20 11.06 204.15 ΦC 60.67 776. parallel or diagonal square or flat head • Working Pressure: PN10/PN16 • Temperature Range: 0℃.40 284.6 33.5 69.08 135.9 7.8 60.1 19.00 1737.5" 2.81 299.7 12.04 128.28 318.16 443.1 12.5'' 65 2. XD381X4).5 122.95 5896.9 15. 20 21 .26 84.74 10'' 250 9.40 268.9 15.90 141.5 137.1 9.03 160.9 7.8 76 98.50 63.48 73.5 9.94 110.73 3581.5 9.7 60.50 417.53 5'' 125 5.5 70 102 102 102 90 125 125 125 4-Φ10 4-Φ12 4-Φ12 4-Φ12 133 164 196 226 153 184 216 254 32 45 45 45 20 26 31. 1 Part Valve Body Disc O-Ring Stem O-Ring Stem Lever Standard Specification EN-GJS-450-10 EN-GJS-450-10+EPDM NBR SS431 NBR SS431 EN-GJS-450-10 Options 　 NBR EPDM SS304.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request Flow Rate Q (gal/min) Note: For special material request other than standard specification.15 2.00 897.1 273. DN Inch mm Inch mm Cv Kv 2'' 50 2.3 139. please indicate clearly on the inquiry or order list.4 70 70 70 70 70 90 90 90 90 90 4-Φ10 4-Φ10 4-Φ10 4-Φ10 4-Φ10 71 71 81 95 111 102 102 109 128 141 32 32 32 32 32 14 14 14 16 16 9. Small hydraulic friction loss with reasonable structure design BS EN 12334 Swing Check Valve (H44X. SS316 Graphite+Steel SS304.+EPDM or D. 2.I. widely used in the field of potable water. please indicate clearly on the inquiry or order list. irrigation. sewage disposal.BS VALVES BS Standard Check Valve • Statement: Check valves serve to prevent the backflow of medium in the piping system for protection of important equipments. AISI 316 Pressed Fit or Threaded SS304. Material: Ductile Iron EN-GJS-450-10 Valve body. Metal Seal: -10℃.5 24. Fusion bonded epoxy coating Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance. 1 2 3 4 5 6 7 8 Part Valve Body Seat Ring Disc Clapper Arm Washer Nut Hinge Pin Bonnet Gasket Bolt Washer Bonnet Plug Standard Specification EN-GJS-450-10 Brass Hpb59-1 (Pressed Fit) EN-GJS-450-10+EPDM EN-GJS-450-10 SS420 Carbon Steel Zinc Plated SS420 EPDM Carbon Steel Zinc Plated Carbon Steel Zinc Plated EN-GJS-450-10 Malleable Iron Galvanized Options AISI 304.I. PN10/16 • Body & Bonnet: Ductile Iron • Disc: D. water supply and drainage. • Features: 1.5 n-d 4-19 4-19 8-19 8-19 8-19 8-23 8-23 12-23 12-23 12-28 12-23 12-28 f 3 3 3 3 3 3 3 3 3 3 4 4 H 146 155 173 180 212 260 290 290 339 339 376 376 10" 250 12" 300 22 23 .350℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request Part No. DN Inch 2" 2. 3. + Bronze or Stainless Steel Sealing • Bronze or Stainless Steel Seat • Fusion Bonded Epoxy Coating H44X MATERIAL SPECIFICATION • Connection Ends: Flange to BS EN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: Rubber Seal: 0℃. SS316 H44X Swing Check Valve Page 23 H44J H84X Grooved Resilient Swing Check Valve Rubber Disc Swing Check Valve Page 25 Page 24 HC41X Silent Check Valve Page 26 DH77X Double Door Wafer Check Valve Page 27 9 10 11 12 Note: For special material request other than standard specification. SS316 SS304.5" 3" 4" 5" 6" 8" mm 50 65 80 100 125 150 200 PN 10/16 10/16 10/16 10/16 10/16 10/16 10 16 10 16 10 16 Dimensions(mm) O 203 216 241 292 330 356 495 495 622 622 698 698 D 165 185 200 220 250 285 340 340 405 405 460 460 D1 125 145 160 180 210 240 295 295 350 355 400 410 D2 99 118 132 156 184 211 266 266 319 319 370 370 b 19 19 19 19 19 19 20 20 22 22 24. H44T). air conditioning. disc are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance. bonnet.80℃. fire protection as well as chemical and energy industry. DN Inch 2" mm 50 PN 16 Dimensions(mm) L 171 D1 57.3 219.5" 3" 4" 6" 8" 10" 12" mm 50 65 80 100 150 200 250 300 SS316 Options H84X • Connection Ends: Groove to ISO 6182 • Working Pressure: PN10/PN16 • Temperature Range: 0℃.88 15.88 6" 8" 10" 12" 150 200 250 300 16 16 16 16 324 371 457 535 163.1 9.96 214. PN10/16 BS EN 12334 Rubber Disc Swing Check Valve (H44J).88 15.93 7.03 160.08 135. SS316 Carbon Steel+NBR Options • Connection Ends: Flange to BS EN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: 0℃.1 88.53 9.05 19.40 268.3 165.88 2. PN10/16 MATERIAL SPECIFICATION Part No.1 273.05 24 25 .3 139. 1 Part Valve Body Bolt Washer Disc Bonnet Bonnet Gasket Plug Standard Specification EN-GJS-450-10 Carbon Steel Zinc Plated Carbon Steel Zinc Plated Carbon Steel + EPDM EN-GJS-450-10 EPDM Malleable Iron Galvanized Bronze ASTM B584 SS304.48 73 76.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request 4 5 6 7 8 9 10 11 12 13 14 H44J MATERIAL SPECIFICATION Part No. SS316 Pressed Fit or Threaded Bronze ASTM B584 Bronze ASTM B584 Bronze ASTM B584 Bronze ASTM B584 SS316 SS316 SS316 DN Inch 2" B 7.5 T 3 3 3 3 3 3 3 3 3 4 4 n-φL 4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 Note: For special material request other than standard specification.BS VALVES Grooved Resilient Swing Check Valve (H84X).88 19.13 12.53 9. PN 10/16 10/16 10/16 10/16 10/16 10 16 10 16 10 16 Dimensions(mm) L 203 216 241 292 356 495 495 622 622 698 698 D 165 185 200 220 285 340 340 405 405 460 460 D1 125 145 160 180 240 295 295 350 355 405 410 d 99 118 132 156 211 266 266 319 319 370 370 C 19 19 19 19 19 20 20 22 22 24. please indicate clearly on the inquiry or order list.70 12.53 15.88 15.53 15. 1 2 3 Part Valve Body Hinge Pin Spring Eye Bolt Disc Disc Sealing Ring Seat Ring Plug Plug Plug Plug Bolt Washer Nut Standard Specification EN-GJS-450-10 SS420 SS304 Carbon Steel Zinc Plated EN-GJS-450-10 EPDM ASTM B62 C83600 (Pressed Fit) Malleable Iron Galvanized Malleable Iron Galvanized Malleable Iron Galvanized Malleable Iron Galvanized SS304 SS304 SS304 SS304 NBR SS304.9 9.90 141.09 72.93 C 15. SS316 SS304.5" 2.3 2. please indicate clearly on the inquiry or order list.05 19.88 15.28 318.93 7.93 9.5" 3" 4" 5" 65 65 80 100 125 16 16 16 16 16 184 184 197 210 248 69.15 D2 60.9 114.5 24.0 323.88 15.53 11.70 15.7 7.29 168.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 2 3 4 5 6 7 Note: For special material request other than standard specification.88 5" 6" 125 150 16 16 248 324 137.94 110.26 84. please indicate clearly on the inquiry or order list.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 MATERIAL SPECIFICATION Part No.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 Part No. DN Inch 2" 2. DN Inch 2" 2.5" 3" 4" 5" 6" 8" 10" 12" 14" 16" mm 50 65 80 100 125 150 200 250 300 350 400 PN 10/16 10/16 10/16 10/16 10/16 10/16 10/16 10/16 10/16 10/16 10/16 Dimensions(mm) L 54 54 57 64 70 76 95 108 143 184 191 D 107 127 142 162 192 218 273 328 378 438 489 D1 64 78 94 117 145 170 224 265 310 360 410 D2 46 60 70 84 115 134 184 220 260 302 350 Note: For special material request other than standard specification.5 T 3 3 3 3 3 3 3 3 4 n-φL 4-Ø19 4-Ø19 8-Ø19 8-Ø19 8-Ø19 8-Ø23 12-Ø23 12-Ø28 12-Ø28 26 27 . SS316 NBR SS316 SS316 SS304.BS VALVES Silent Check Valve (HC41X). AS 2129 TABLE E. PN10/16 Double Door Wafer Check Valve (DH77X). 1 2 3 4 5 6 7 8 9 10 11 Part Valve Body Stem Hinge Bushing Spring Nut Disc O-Ring Hinge bushing Seat O-Ring Screw Standard Specification EN-GJS-450-10 SS420 Brass Hpb59-1 SS304 SS304 EN-GJS-450-10 EPDM Brass Hpb59-1 EN-GJS-450-10 NBR Carbon Steel Zinc Plated EPDM SS304. BS 10 TABLE D/E • Working Pressure: PN10/PN16 • Temperature Range: 0℃. SS431 Options DH77X MATERIAL SPECIFICATION • Connection Ends: BS EN 1092 PN10/PN16. SS416 SS316 NBR Note: For special material request other than standard specification. please indicate clearly on the inquiry or order list. PN10/16 HC41X • Connection Ends: Flange to BS EN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: 0℃. 1 2 3 4 5 Part Valve Body Disc Stem Spring Rubber Seat Standard Specification EN-GJS-450-10 EN-GJS-450-10+EPDM SS420 SS304 EPDM Options SS304.5" 3" 4" 5" 6" 8" 10" 12" mm 50 65 80 100 125 150 200 250 300 L 120 135 155 165 190 210 260 285 315 D 165 185 200 220 250 285 340 405 460 D1 125 145 160 180 210 240 295 355 410 Dimensions(mm) D2 99 118 132 156 184 211 266 319 370 C 19 19 19 19 19 19 20 22 24. SS316. SS316. JIS B2212 10K. SS316. AL-Bronze UNC 95400 SS304. 5 469 540 625 715 28 29 . UL Listed • Ductile Iron Body & Bonnet • Stainless Steel Screen • Fusion Bonded Epoxy Coating • Gasket: EPDM or Graphite + Acanthopore Plate V4 MATERIAL SPECIFICATION Part No.5 28 n-Φd 4-Φ19 4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ19 8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 f 3 3 3 3 3 3 3 3 3 4 4 4 H 140 140 175 198 229 287 304 370. SS316 (Perforated. please indicate clearly on the inquiry or order list. mm 4 5 6 6.5" 2" 2. Fusion Bonded Epoxy Coating Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance.5" 3" 4" 5" 6" 8" 10" 12" 14" 16" Note: For special material request other than standard specification. 3. DN mm 40 50 65 80 100 125 150 200 250 300 350 400 PN 10/16 10/16 10/16 10/16 10/16 10/16 10/16 10 16 10 16 10 16 10 16 10 16 Dimensions(mm) L 200 230 290 310 350 400 480 600 730 850 838 864 D 150 165 185 200 220 250 285 340 405 460 520 580 D1 110 125 145 160 180 210 240 295 350 355 400 410 460 470 515 525 D2 90 99 118 132 156 184 211 266 319 370 429 480 b 19 19 19 19 19 19 19 20 22 24.BS VALVES BS Standard Y-Type Strainer • Statement: Installed before relief valves.3 Free Flow Area(%) % 48 59 63 64 V4 Y-Type Strainer Page 29 V8 Grooved Y-Type Strainer Page 30 Inch 1. 2. 1 2 Part Valve Body Screen Gasket Bonnet Plug Bolt Flat Washer Standard Specification EN-GJS-450-10 SS304 (Perforated) EPDM EN-GJS-450-10 Malleable Iron Galvanized Carbon Steel Zinc Plated Carbon Steel Zinc Plated Bronze ASTM B584 SS304.80℃ rubber gasket. • Features: 1. strainers serve to filter out the impurities in the flow medium for protection of valves and equipments in the piping system.5 26. hydraulic control valves as well as other equipments.350℃ graphite gasket • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 3 4 5 6 7 STANDARD SCREEN DN Inch 2"~2. Double Screen) Graphite+Acanthopore Plate • Connection Ends: Flange to BS EN 1092-2:1997 • Working Pressure: PN10/PN16 • Temperature Range: 0℃. atmospheric valves. 25 19 14 13 Hole Dia. Material: Ductile Iron EN-GJS-450-10 Valve body and cover are produced in ductile iron material which provides guarantee for high strength and good corrosion resistance. Y-Type Strainer (V4).5" 3"~4" 5" 6"~12" mm 50~65 80~100 125 150~300 Sieve No. SS316 Options SS304. SS316 SS304. -10℃. Different Options of Screen Mesh Specification Different options of screen mesh specification available as per different service conditions. PN10/16. Knitted. 88 15. Canada and Asian countries.88 7.05 9. The MECH brand hydraulic control valves have been widely used in China.1 273. • Specifications Basic Valve: Y-Type Direct-flow Connection Ends: Flange to BS EN 1092-2:1997 Temperature Range: 0℃. please indicate clearly on the inquiry or order list..52 9.90 15.7 69. 25 19 14 13 Hole Dia.5" 3"~4" 5" 6"~12" mm 50~65 80~100 125 150~300 Sieve No.3 Free Flow Area(%) % 48 59 63 64 DN80 DN100 DN125 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 Note: For special material request other than standard specification.05 19.13 12.92 7.80℃ (0 . 3.26 84.92 9. The hydraulic control valve produced by Jinan Meide is new style that absorbed the essence of other well-known brands which makes it better in energy saving.0 73 76.88 19.3 Dimensions(mm) d 57. Europe and South East Asian countries in pipe system of irrigation.5 686.0 762. mm 4 5 6 6. please contact with factory for support and confirm. used for agricultural irrigation.9 163. Israel and Denmark.88 15. reserves the right for construe of the information provided in this catalogue 30 31 .88 B 7.48 15.9 114.0 419.92 7.0 141.180℉) Working Pressure: PN10/PN16/PN25 Testing Standard: API 598 • Flow Diagram of Basic Valve Water Head Loss (psi) Cap Plug (Brass H62) Up Bonnet (EN-GJS-450-10) Up Gland (EN-GJS-450-10) Diaphragm (EPDM) Bottom Gland (EN-GJS-450-10) Bushing (Brass H62) Middle Bonnet (EN-GJS-450-10) Stem (SS304) Bolt (SS304) Spring ( Stainless Steel 4Cr13) Main Disc (EN-GJS-450-10) Main Gasket (EPDM) Gland of Main Disc (EN-GJS-450-10) Seat (SS304) Valve Body (EN-GJS-450-10) MATERIAL SPECIFICATION Part No.5 362. design of the product should be as confirmed when order placed.0 168.It can happen that the catalogue might not be updated while product design improved. 1 2 3 4 5 Part Valve Body Screen Rigid Coupling Cap Plug Standard Specification EN-GJS-450-10 SS304 EN-GJS-450-10 EN-GJS-450-10 Malleable Iron Galvanized Bronze ASTM B584 SS316 Options DN50 DN65 Flow Rate (gpm) STANDARD SCREEN DN Inch 2"~2.88 15.52 11.5 24.03 160. Ltd.5 T 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 n-ΦL 4-Φ19 4-Φ19 8-Φ19 8-Φ19 8-Φ23 8-Φ23 12-Φ23 12-Φ23 12-Φ28 12-Φ23 12-Φ28 16-Φ23 16-Φ28 16-Φ28 16-Φ31 20-Φ28 20-Φ31 20-Φ28 20-Φ34 6" 8" 10" 12" 150 200 250 300 470.70 12. DN Inch 2" mm 50 L 247.BS VALVES Grooved End Y-Type Strainer (V8). and ever since its entrance it gets rapidly developped and widely applied in different industrie aside from irrigation.5 28 25.0 323.94 110. It was from the 1990s when the product first entered China.28 318. water supplying.5 26. fire protection and air conditioning which has medium of water under 80℃ or other medium with similar physical and chemical property as water.52 PN 10/16 10/16 10/16 10/16 10/16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 Dimensions(mm) L 203 216 241 292 356 495 495 622 622 698 698 787 787 914 914 978 978 1100 1100 H 170 195 215 255 360 450 550 645 700 790 850 900 D 165 185 200 220 285 340 340 405 405 460 460 505 520 565 580 615 640 670 715 D1 125 145 160 180 240 295 295 350 355 400 410 460 470 515 525 565 580 620 625 d 99 118 132 156 211 266 266 319 319 370 370 429 429 480 480 530 548 582 609 C 19 19 19 19 19 20 20 22 22 24.The products listed in this catalogue are intended to be assembled only in pipelines of same or lower pressure ratings and properly installed.5 31.5 24.88 9.3 165.5" 3" 4" 5" 65 65 80 100 125 273 273.1 137.88 15.96 214.88 15. In case of special request. 2.5 OD 60.3 139.52 9.29 15. PN10/16/25 • Connection Ends: Groove to ISO 6182 • Working Pressure: PN10/PN16/PN25 • Temperature Range: 0℃.05 19. consumption reducing and accurate adjusting achieving.5" 3" 4" 6" 8" 10" 12" 14" 16" 18" 20" mm 50 65 80 100 150 200 250 300 350 400 450 500 DN Kv 50 41 65 53 80 105 100 175 125 285 150 402 200 730 250 1160 300 1400 350 1770 400 3010 450 3225 500 3395 5" 6" 125 150 419 470.5" 2.52 DN Inch 2" 2.3 219.0 609.0 298.80℃ • Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request Hydraulic Control Valves.Jinan Meide Casting Co. Later the product was introduced into the United Sates.5 30 26. In this case.40 268.09 72.08 135.92 2.5 24.1 88.15 A 15. PN10/16/25 • Statement The hydraulic control valve was initially originated in Holand.70 Important notes: 1. pressure P1 will be accumulated inside the upper cavity which will gradually push the membrane to close the disc and the valve. stable and no gap resistance. user can choose also to control the valve with medium from outside. Check if there's sundries blocked inside the basic valve. with stainless steel. valve is not open when choose condition of normally close and electrified. The application of the solenoid valve depends on the working environment. • Ductile iron castings with nodularity higher than 90%. • Good corrosion resistance. When there is pressure coming from the flow direction. NSF61. Proposed Solutions Check if needle valve or ball valve in front of the basic valve is opened. Common problems and proposed solutions Common Problems Pressurize in front of the valve but valve can't be opened when choose condition of normally open and no power. Statement SK710X Electromagnetic Control Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. In case the water inside the piping system are highly corrosive or with high deposits. Good connection without leakage. Pressure P1 enters the upper cavity room of the valve through the guide tube and then comes to the low pressure area through the normally open solenoid valve. etc. make sure action in place and for the solenoid valve and sealing is good condition for the solenoid valve. Check if solenoid valve is in good working condition. water reservoir (tank) backup. Slow shut causes no pressure fluctuation. Records and testing bars maintained for one year in the factory. It's up to the option of the client. the main valve will be in most cases closed and operation principle same as stated above. 32 33 . please open it. If not. slight friction loss. • Long pitch orientation design for stem move. This type of valve is widely applied in the field of piping system optimization. 4. mini strainer and ball valve. • Controlled by solenoid valve. Pressure in front and the valve can't close complete with leakage when choose condition of normally close and no power. normally closed solenoid valve control or normally open solenoid valve control. can be used for large range of pressure and voltage. etc. fusion bonded epoxy coating both for interior and exterior surface of the basic valve. In this way the upper cavity room is not able to form confined space and the disc of the main valve will be opened at the pressure of P1. When the normally open solenoid valve is closed. big gap design on connection of disc and stem. save energy and wiring costs. Operational principle SK710X Electromagnetic Control Valve is controlled by solenoid valve and equipped with normally open (or normally closed) two positions two ways or two positions three ways solenoid pilot valve. Typical installation illustration 5. no eddy flow and turbulent flow. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS. the main valve in most cases will be in open position. change of industrial valves. and the diaphragm with support is well protected. etc. 3. pressure division. 2. Check if needle valve or ball valve is open in front of the valve. rubber made from DuPont and other rustresisting material. needle valve. with functions of fully opening and fully closing. • Balanced automatically. The basic valve can't be closed when choose normally open and shut down the power.BS VALVES SK710X Electromagnetic Control Valve 1. work automatically without any power-generating. For normally closed solenoid valve. It saves installation and repairing space. Check condition of wiring. • Dual cavity design. with its closing and opening remotely controlled by electric signal. • Series of mode of execution can be changed to hand control. When the normally open solenoid valve is applied.Property and advantages • Driven by pressure of pipe system. Wash the mini strainer before basic valve and make sure it's unblocked. foundry in house with advanced melting technology and strict quality control system.. • Channel with straight-flow. depending on different working conditions. No water after valve. Check if any damage or blocks on the sealing surface of basic valve. copper alloy. disc is free on the vertical flat against stem. it can balance the tolerance from machining and sealing surface. testing reports and testing bars can be supplied with order. 05 ≤10% ≤5% 0. Under normal conditions.Notes for installation and debugging All the Pressure Reducing Valves have been finished initial debugging tests before delivery. b. it can balance the tolerance from machining and sealing surface. achieve accurate pressure reducing results.Check if any damage on the sealing surface of basic valve or pilot valve. testing reports and testing bars can be supplied with order. Pressure gets accumulated within the upper cavity room and membrane drives the disc down to close the valve till the pressure after the pilot valve gradually reduces to its pre-set value. Outlet pressure Min. Outlet pressure is similar with inlet pressure. The pressure reducing pilot valve closes gradually when the pressure after pilot valve exceeds its pre-set value. Pressure after the valve is not stable.Close the needle valve before the basic valve and open 1/4 turns slowly. Slow shut causes no pressure fluctuation.Check if any sundries on the sealing surface of basic valve or pilot valve.Typical installation illustration 5. After the pipe system becomes stable.Statement SK720X Pressure Reducing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. d.Check if pressure is fluctuating strongly at inlet. with stainless steel. please loose the adjusting screw on the top of pilot valve to the top-most position. mini strainer and ball valve. work automatically with energy of pipe system to achieve energy conservation and environment protection. b. Good connection without leakage. copper alloy. • Balanced automatically. Under this condition. Tighten adjusting screw of pilot valve in clockwise slowly. please repeat the above steps. big gap design on connection of disc and stem. • Channel with straight-flow. make sure stability of reaction to keep stability of pressure after the valve. Inlet pressure Min. needle valve. and the basic valve will then open with the release of the accumulated pressure in the upper cavity room. with functions of fully opening and fully closing. have function of stabilizing pressure after the valve. pressure can be only adjusting from low level to high level and pay attention to make the adjusting slowly. The pilot valve opens again when the pressure after the valve becomes lower than the pre-set value. slight friction loss. a.0 0. Open the big hex screw on the top of bonnet. no pressure reduction.2 1.Operational principle SK720X Pressure Reducing Valve is controlled by pressure reducing pilot valve and equipped with pressure reducing pilot valve. When outlet pressure increase to the set pressure please fasten the locknut under the adjusting screw.Check if any damage or fatigue on spring of basic valve or pilot valve. fusion bonded epoxy coating both for interior and exterior surface of the basic valve.Basic Parameters Pressure Max. When the pressure before the pilot valve (3) is lower than its pre-set value. Adjust the needle valve on inlet conduit slowly until no vibration.8 Unit Nominal Pressure PN10 1. connect bottom cavity and outlet of the basic valve. stable and no gap resistance. Inlet pressure Max. • Controlled by the pilot valve. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS. The ball valve can be adjusted with different working conditions. the pilot valve will remain at full open position and the upper cavity room of the basic valve is not able to get accumulating pressure. Try to keep it within small range. b. NSF61. recalculate flow and choose new valve with proper size. rubber made from DuPont and other rustresisting material. water flow comes continuously from the inlet opening to the upper cavity room (2) of the basic valve through the needle valve (1). In case of emergency. • Good corrosion resistance. and despite the fluctuation of medium flow or pressure before the valve the pressure after the valve will always remain stable and maintain the set pressure range. 4. lower energy consumption. The ball valve (4) controls the outlet water flow rate from the upper cavity room and thus to stabilize the action of the basic valve. release air.6 P2max + 0. disc is free on the vertical flat against stem. Remember. the ball valve can also be closed manually for cutting off of the basic valve.0 PN16 1.BS VALVES SK720X Pressure Reducing Valve 1. no eddy flow and turbulent flow.Calculate the flow again and collect proper size of valve or add throttling set. If go beyond the set pressure during adjusting.6 PN25 2. pressure deviation Symbol P1max P1min P2max P2min ΔP2Q ΔP2p ΔPmin MPa 0. 2. • Ductile iron castings with nodularity higher than 90%. 7. Records and testing bars maintained for one year in the factory.Common problems and proposed solutions Common Problems Proposed Solutions a.Property and advantages • Driven by pressure of pipe system. the disc of the basic valve will be open at the water pressure from the inlet opening to allow water flow. c.Check if any corrosion or blocking on stem of basic valve or pilot valve.Check if required flow is too different than actual flow. The throttle orifice (5) that connects the lower cavity to the outlet serves to keep the reaction of the valve gentle and stable. Outlet pressure Characteristics of flow deviation Pressure characteristic deviation Min. and the diaphragm with support is well protected. Strong vibration and noise. Achieve functions of both reducing dynamic pressure and reducing static pressure. Further dubugging test is also suggested during using according to different working conditions. avoid any vibration and noise. a. 3. cut down the damage of cavitation. etc. e. foundry in house with advanced melting technology and strict quality control system. • Dual cavity design. 34 35 . • Long pitch orientation design for stem move. • Have internal orifice. The function of the valve is to reduce the high pressure to the pre-set low pressure.2 1.5 6.Check if any damage or fatigue on diaphragm of basic valve or pilot valve. the valve is connected with branch pipe and directed to lower pressure area or drainage ditch. Records and testing bars maintained for one year in the factory.Check if any blocks in basic valve or on stem of pilot valve. lower energy consumption. One prominent feature of the valve is.06MPa.BS VALVES SK730X Pressure Relief & Sustaining Valve 1.3: 0. Under the pressure from the inlet opening. foundry in house with advanced melting technology and strict quality control system. rubber made from DuPont and other rustresisting material. NSF61. stable and no gap resistance. when pressurize. copper alloy. Under normal conditions. clockwise is for increasing pressure and anti-clockwise is for reducing pressure. • Balanced automatically.Property and advantages • Driven by pressure of pipe system. After the pipe system becomes stable. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS. and the diaphragm with support is well protected. etc. water flow comes continuously from the inlet opening to the upper cavity room (2) of the basic valve through the needle valve (1).Typical installation illustration For Pressure Relief For Pressure Sustaining 5.33 Ps＜0.Common problems and proposed solutions Common Problems The pressure of pipe system is lower than set-pressure. Ps≥0. make sure stability of reaction to keep stability of pressure after the valve. with functions of fully opening and fully closing. As pressure relief valve. • Good corrosion resistance. if yes. d. fusion bonded epoxy coating both for interior and exterior surface of the basic valve. • Ductile iron castings with nodularity higher than 90%. b. reliable and safe. please remove the block or change new stem. Ps≥0. slight friction loss. When the pressure before the pilot valve (3) is lower than its pre-set value A.Operational principle SK730X Pressure Relief & Sustaining Valve is controlled by pressure relief/sustaining pilot valve and equipped with pressure relief/sustaining pilot valve. b. the valve dose not close.7 6. it releases the high pressure before the valve out of the piping system for protection of the pipes and the equipments when the pressure exceeds its pre-set value. please try to repeat all the actions. In normal working conditions. it maintains the water pressure above certain set value for guarantee of water supply to upstream area 2. adjust the adjust screw on pressure relief pilot valve and fasten the lock nut when it achieves pressure required.Check if any damage or fatigue on diaphragm of basic valve or pilot valve. please loose the lock nut under adjusting screw. it can serve as pressure relief valve and sustaining valve at the same time. needle valve.Notes for installation and debugging All the Pressure Relief & Sustaining Valves have been finished initial debugging tests before delivery and the set-pressure is 0. • Channel with straight-flow. connect bottom cavity and outlet of the basic valve. 3. please open it. the valve dose not open.83 PN16 ≤1. avoid any vibration and noise. if yes. Pd 7.Check if ball valve (4) is closed. the pilot valve will remain closed and the water that enters the upper cavity room drives the membrane down and closes the disc and the basic valve.Check if lock nut and adjust screw were adjusted wrongly. The pilot valve opens when the pressure before the valve exceeds its pre-set value and the pressure accumulated in the upper cavity room gets released.3: 20%Ps ≤1. c. big gap design on connection of disc and stem. the valve is connected in series with the main pipe and serves to maintain the pressure before valve above the set value B. Slow shut causes no pressure fluctuation. As Pressure relief valve. open the ball valve or needle valve (1) slightly.Check if any sundries on the sealing surface of basic valve or pilot valve. work automatically with energy of pipe system to achieve energy conservation and environment protection. As pressure sustaining valve. cut down the damage of cavitation.5: ±0.2Ps PN25 ≤1.Statement SK730X Pressure Relief & Sustaining Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. Good connection without leakage. a. In this way the pressure within the piping system will be maintained under the pre-set value A. mini strainer and ball valve.Basic Parameters Norminal Pressure Pressure Symbol Unit PN10 Set Pressure Set Pressure Difference Open/Close Pressure Difference Discharge pressure ΔPb Ps MPa ≤0. achieve accurate pressure relief and pressure holding results.Check if any damage on the sealing surface of basic valve or pilot valve. testing reports and testing bars can be supplied with order. the disc of the basic valve opens to allow water flow. • Long pitch orientation design for stem move. • Dual cavity design.014 MPa. Proposed Solutions a. 36 37 . no eddy flow and turbulent flow. When the pressure before the pilot valve (3) is lower than its pre-set value. the pilot valve will remain closed and the water that enters the upper cavity room drives the membrane down and closes the disc and the basic valve for accumulation of pressure till equals to the set value B. The pressure of pipe system is higher than set-pressure.Check if any damage or fatigue on spring of basic valve or pilot valve. the disc of the basic valve opens. it can balance the tolerance from machining and sealing surface. Further debugging test is also suggested during using according to different working conditions. • Have internal orifice.5: ±3%Ps Ps＜0. Under the pressure from the inlet opening. • Controlled by pilot valve. with stainless steel. As pressure sustaining valve. water flow enters the upper cavity room (2) through needle valve (1). c.6MPa. In this way the pressure within the piping system will be maintained under the pre-set value B. disc is free on the vertical flat against stem. 4. Pay attention that when adjust pressure relief pilot valve. The pilot valve opens when the pressure before the valve exceeds its pre-set value and the pressure accumulated in the upper cavity room gets released. slight friction loss. Or you can use barrel to avoid the affection of the wave. • Separate angle control. the disc of the basic valve remains open at the water pressure from the inlet opening to allow water supply to the water tank. the pressure within the upper cavity room gets released through the angle valve and the basic valve opens to continue with water supply. That's to assemble two position two-way solenoid valve before the controlling angle valve to make sure that the valve can be closed in case of emergency. When the water surface reaches the set position.Check if the float was installed close to water outlet. and equipped with needle valve. avoid influence to level measuring by the wave beside inlet water. • Long pitch orientation design for stem move. The valve is capable to maintain the water surface at set position despite the fluctuation of flow rate and widely applied where there is water reservoir or water box for injection of water. including separate angle valve. achieve accurate level limit.Property and advantages • Driven by pressure of pipe system. it can balance the tolerance from machining and sealing surface. stable and no gap resistance. Records and testing bars maintained for one year in the factory.Check if any damage on the sealing surface of basic valve or pilot valve.Operational principle SK750X Remote Float Control Valve is controlled by angle valve. When water position declines. b. • Dual cavity design. avoid any vibration and noise. When the float is not reaching the set position. big gap design on connection of disc and stem. Under normal conditions.Check if any damage for diaphragm. To make sure water won't exceed set-level double insurances is recommended. make sure stability of reaction to keep stability of pressure after the valve. Pressure gets accumulated within the upper cavity room and drives the membrane down to close disc and the basic valve gradually.Check if block on lever of controlling angle valve. With the raising of the water surface. diaphragm and stem. 2. suitable for limited installation and repairing space.Common problems and proposed solutions Common Problems Proposed Solutions a. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS. lower energy consumption. • Channel with straight-flow.Check the location of float and make sure the top-most position which float can catch is the set-level of the water box. please change new one. please cut off the water supply and check sealing surface of basic valve.Check if ball lever has been corrosive and float missing.Statement SK750X Remote Float Control Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. Achieve functions of both reducing dynamic pressure and reducing static pressure. c. • Controlled by angle valve and float. fusion bonded epoxy coating both for interior and exterior surface of the basic valve. • Good corrosion resistance. In case the float is not working. b.BS VALVES SK750X Remote Float Control Valve 1. and the diaphragm with support is well protected. cut down the damage of cavitation. if the basic valve was closed. please just disregard method of a. Level adjusting is not accurate and float jumps strongly. b and e and only check sealing surface of angle valve and ball lever. copper alloy. mini strainer and ball valve. the float (6) gradually raises and closes the angle valve (4). If any damaged parts. Slow shut causes no pressure fluctuation. please move it to far away from the water outlet. the angle valve close completely and so with the basic valve and the water supply stops. foundry in house with advanced melting technology and strict quality control system. testing reports and testing bars can be supplied with order. etc. Good connection without leakage. Needle valve (1) serves to control the closing speed of the valve to prevent formation of water hammer. Under this condition. float and ball lever.Check if any sundries on the sealing surface of basic valve or pilot valve. The water that enters the upper cavity room of the basic valve discharges into the water tank and no accumulation within. a. Basic valve does not close when water meets specified level and continue to supply water. NSF61. please close ball valve (3). slowly shut and avoid close valve water hammer. with functions of fully opening and fully closing. 3. connect bottom cavity and outlet of the basic valve. ball valve (3) can close the basic valve for emergency cut-off. work automatically with energy of pipe system to achieve energy conservation and environment protection. water flow comes continuously from the inlet opening to the upper cavity room (2) of the basic valve through the needle valve (1). the angle valve 4 remains open. 4. • Have internal orifice. ball lever and float. no eddy flow and turbulent flow. Reasonable suggestion 38 39 .Typical installation illustration 5. • Ductile iron castings with nodularity higher than 90%. d. disc is free on the vertical flat against stem. can be installed separately with basic valve. with stainless steel. During the checking. • Balanced automatically. If yes.Technical Parameter Accuracy of Surface Control: ±25mm 6. rubber made from DuPont and other rustresisting material. If the basic valve does not close when close ball valve (3). designed with adjustable parallel float. e. • Ductile iron castings with nodularity higher than 90%. there is no pressure before the valve. which slows down the closing process to prevent formation of water hammer.Operational principle SK760X Slow Shut Control Valve (Pump Control Valve) is composed of needle valve (or ball valve). Proposed Solutions a. The pressure within the lower cavity room (2) discharges to the lower pressure area before the basic valve through needle valve (1) (or ball valve) . 3. a. Before the pump starts.Typical installation illustration 5. • Channel with straight-flow. The valve is designed with dual disc. pressure before the valve is higher than pressure after. slight friction loss.Check if there's sundries on the sealing surface of main disc or second disc. widely applied in the pump outlet for prevention of medium back-flow. etc. with stainless steel. mini strainer and ball valve. 40 41 .Common problems and proposed solutions Common Problems Strong vibration and noise when start-up the pump. It can achieve real silence. disc is free on the vertical flat against stem. c. please change new one.Technical Parameter Pressure Min Closing Pressure Slow-shut Time Symbol Pg t Unit MPa s Norminal Pressure PN10 PN16 ≤0. The opening and closing speed of the valve can be controlled by adjustment of the needle valve (1) & (4) (or ball valve). especially good for working in complicated piping system and working conditions where there is tremendous pressure and water back-flow. the higher pressure flows back to the upper cavity room through the needle valve (4) (or ball valve) and gets accumulated to drive the membrane down to close the valve disc (5). with functions of fully opening and fully closing. the speed of opening and closing can be adjusted according to working conditions to avoid pressure fluctuation and water hammer. The two combined force opens the disc of the basic valve rapidly to allow water supply. At the same time.Adjust needle valve or ball valve (4) to proper closing speed. b.Property and advantages • Driven by pressure of pipe system. copper alloy. cut down the damage of cavitation. work automatically with energy of pipe system to achieve energy conservation and environment protection. pressure fluctuation and water hammer formation. Loose the hex brass nut on the top of bonnet to discharge gas. • Good corrosion resistance.Consider to choose design of dual discs. c.Check if stem corroded or blocked. Under normal working conditions. Main disc will fall freely with its weight when pump stop working.05 2～60 PN25 Note: Slow-shut time can be adjusted as per request 6. it can balance the tolerance from machining and sealing surface. Achieve functions of both reducing dynamic pressure and reducing static pressure. and the valve remains fully open. With the start of the pump. rubber made from DuPont and other rustresisting material. no large pressure fluctuation within the system. As a result.Recalculate the flow and choose new valve with proper size or add throttling set. a. The design of the valve incorporates the function of slowopening.Statement SK760X Slow Shut Control Valve (Pump Control Valve) is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. When pressure after valve exceeds pressure before valve.Adjust the needle valve or ball valve (1) at inlet to proper opening speed.Check if damage on sealing surface of main disc or second disc.Check if there's gas in the upper cavity room. the pressure before the valve increases gradually. customer can choose design of main disc + second disc. then 90% of inlet of basic valve will be will closed. slow closing and water hammer absorption. big gap design on connection of disc and stem. the valve is capable to be closed rapidly to prevent backflow of water and protect the pump and piping system. The second disc will close the 10% left slowly by the pressure of controlling cavity then huge energy of water hammer will be eliminated. d. If any damaged parts found. 4. When the pump stops (as planned or out of accident). Strong vibration and noise when stop the pump.Check if damage on diaphragm. • Dual disc. b. • Stable when open and close. no eddy flow and turbulent flow. pressure before the valve suddenly declines. NSF61. Pressure after valve exceeds that before the valve. foundry in house with advanced melting technology and strict quality control system. Valve does not work and cause pump's reversing. quick closing. Slow shut causes no pressure fluctuation. testing reports and testing bars can be supplied with order. b. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS. and disc (5) is closed under the pressure from the spring. and the diaphragm with support is well protected. Good connection without leakage. • Balanced automatically. fusion bonded epoxy coating both for interior and exterior surface of the basic valve. • Long pitch orientation design for stem move. • Dual cavity design. 2. stable and no gap resistance. Records and testing bars maintained for one year in the factory. the water will not cause pump reversing.BS VALVES SK760X Slow Shut Control Valve (Pump Control Valve) 1. the pressure water enters the lower cavity room (2) through the needle valve (1) (or ball valve). 2. please open it.Check if ball valve (6) at outlet was closed.Typical installation illustration 5. Further debugging test is also suggested during using according to different set-conditions. work automatically with energy of pipe system to achieve energy conservation and environment protection. b. Then you'll got set-difference for the pressure no matter how the pressure of pipe system changes. • Good corrosion resistance.4 and 5 conduit. testing reports and testing bars can be supplied with order. widely applied in HVAC system for guarantee of flow stability in the air conditioning. fasten the lock nut. • Dual cavity design.Statement SK780X Pressure Differential By-pass Balancing Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system. slight friction loss. When the pressure difference is small. thus to protect the efficient and safe working of the refrigeration set or heating set. Over review pressure meter of water knockout drum and water collector. 6. fusion bonded epoxy coating both for interior and exterior surface of the basic valve. See No. a. the pressure inside upper cavity room (2) declines and the basic valve opens broadly. 3. If yes. • Channel with straight-flow. Pressure difference is bigger than set-value and does not reach the set-difference. pilot valve (3) turns to close at the pressure of the spring. No further adjusting suggested if no special notice. Clockwise is for increasing the pressure difference and anti-clockwise is for reducing pressure difference when set adjusting screw on the top of pilot valve.Notes for installation and debugging The valve has been finished initial debugging tests before delivery. stable and no gap resistance. needle valve (or ball valve). copper alloy. • Balanced automatically. 42 43 . • Antenna type of conduit.Check if any damage on the sealing surface of basic valve or pilot valve. disc is free on the vertical flat against stem.Check if there's any block for pilot valve. Pilot valve (3) is connected to the water supply duct and return duct by guide tube (4) and (5) to sensing of the pressure difference and adjustment of the opening position of the pilot valve accordingly.Property and advantages • Driven by pressure of pipe system. with functions of fully opening and fully closing. foundry in house with advanced melting technology and strict quality control system. and the diaphragm with support is well protected. avoid any vibration and noise. c. it can balance the tolerance from machining and sealing surface. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS. Normally. If yes. Good connection without leakage. cut down the damage of cavitation.BS VALVES SK780X Pressure Differential By-pass Balancing Valve 1. mini strainer and ball valve. When the pressure difference is large.Common problems and proposed solutions Common Problems Pressure difference is smaller than set-value and does not reach the set-difference. Adjust needle valve (ball valve) can achieve different movement speed for the basic valve. Slow shut causes no pressure fluctuation. Proposed Solutions a. etc.Check if any sundries on the sealing surface of basic valve or pilot valve.Operational principle SK780X Pressure Differential By-pass Balancing Valve is composed of pressure balancing pilot valve. big gap design on connection of disc and stem. the pressure inside upper cavity room (2) increase and the basic valve turns to close. Records and testing bars maintained for one year in the factory. When adjusting is done. • Ductile iron castings with nodularity higher than 90%. can achieve accurate and reliable adjusting. Water flow enters continuously from water supply duct to the valve inlet and then to the upper cavity room (2) through needle valve (1) (or ball valve). As result the water flow between the supply and return duct increase and the entire system gets balanced. • Have internal orifice. connect bottom cavity and outlet of the basic valve. SK780X Pressure Differential By-pass Balancing Valve is installed between radiant and distribution water manifold (water supply and water return). with stainless steel. The valve prevents the effect on the other pipe branches when there is fluctuation on one branch by balancing of pressure in the radiant and distribution water manifold.Check if needle valve (ball valve) (1) was closed or almost closed. As result the water flow between the supply and return duct decreases and the entire system also gets balanced. NSF61. it has been adjusted well before delivery. • Long pitch orientation design for stem move. 4. refrigeration and heating system and pump working. please open it. make sure stability of reaction to keep stability of pressure after the valve. b. connect with water knockout drum and water collector (supplying pipe and return pipe). pilot valve opens broadly. Achieve functions of both reducing dynamic pressure and reducing static pressure. adjust pilot valve (3) according to set-difference of pressure. no eddy flow and turbulent flow. rubber made from DuPont and other rustresisting material. • Dual cavity design. (8) and (9) were closed completely. All the characteristics in accordance with ANSI/AWWA C550 and other international specifications like WRAS. When ball valve (12) and (14) are open. A: Opening solenoid valve (8) B: Opening ball valve (7) C: Opening remote ball valve (9). Anyone can make the valve into working condition. ball valve (3) is open. After fire fighting. Please adjust all the ball valves to make sure the basic valve be in set condition. anti-reset controller. functioning as flow control and alarming device in the sprinkler and pre-action system. 4. compact design. 2. water will pass through the main valve. i. (9) and electromagnetic valve when it's in empty state behind the basic valve. disc is free on the vertical flat against stem. ball valve (7). pressure switch (17). • Long pitch orientation design for stem move.Check if controlling valve (7). and then close (15) and open (14) after testing. At this time the sealing ball of anti-reset controller makes controller in a shutdown state. Under set condition. testing reports and testing bars can be supplied with order. cut down the damage of cavitation. (4).. b. • Ductile iron castings with nodularity higher than 90%. hydraulic pressure type. no eddy flow and turbulent flow.Typical installation illustration 5. it said anti-reset controller is in good condition. with functions of fully opening and fully closing.Check if any sundries or damage on the sealing surface of basic valve or anti-reset controller. ball valve (12). When open controlling valve (7).Operational principle SK790X Deluge Alarm Valve is equipped with solenoid. big gap design on connection of disc and stem.Statement SK790X Deluge Alarm Valve is a diaphragm type of hydraulic control valve driven by the hydraulic pressure within the piping system.Check if there's block on stem of basic valve. 6. c. please closed ball valve (7). (5) & (11) are normally open unless need to change the pressure gauge. copper alloy. • Anti-reset controller. Achieve functions of both reducing dynamic pressure and reducing static pressure. tight sealing.Check if any damage on diaphragm. The deluge alarm valves returns to set condition. When the valve is under set condition. to start the sprinkler system for quenching of the fire and send out fire alarm through the fire bell when there is fire detected. NSF61. Make sure anti-reset controller is in good condition and seal well before installation. (8) and (9) were opened. Good connection without leakage. fusion bonded epoxy coating both for interior and exterior surface of the basic valve. you can operate as following if you want to test the pressure switch alarm device (17) and water motor alarm (18): close ball valve (14) and open (15). there's still water coming out behind the valve. ball valves and conduits are all in good condition after out-fire.BS VALVES SK790X Deluge Alarm Valve 1. press the anti-reset controller. Close them or replace with new ones. there is no hydraulic pressure for pressure switch (17) . with stainless steel.Property and advantages • Driven by pressure of pipe system. If no leakage.Common problems and proposed solutions Common Problems Press anti-reset controller after fire-out. stable and no gap resistance. a. When ball valve (11) is open. • Good corrosion resistance. Proposed Solutions a. In case there is fire detected. press the anti-reset controller handle till the pressure gauge (6) and pressure gauge (1) shows the same value. Records and testing bars maintained for one year in the factory. ball valve and pressure gauge. and alarm (18) does not work. there're three opening types used for different situation of firing. foundry in house with advanced melting technology and strict quality control system. 3.Notes for installation and debugging Please check if pressure switch and alarm bell are in good condition before installation. (13) & (15) closed. If there's water with pressure in front of the valve. Make sure water can not leak to system from water supplying system or there's equipment to discharge the leaked water. • Triple insurance. Any of the above 3 methods can get the pressure within the control room of the basic valve released rapidly to open the valve and set it into working condition. • Balanced automatically. Close them or replace with new ones. • Channel with straight-flow. For deluge valve there is set condition and work condition. slight friction loss. solenoid valve (8).Check if controlling valve (7). Ball valve (2). remote valve (9). the anti-reset controller is connected. the pressure switch bell sends out signal alarms.e. and pressure gauge (1) and pressure gauge (6) shows the same value. Slow shut causes no pressure fluctuation. etc. 44 45 . and the diaphragm with support is well protected. rubber made from DuPont and other rustresisting material. (8) and (9) no water comes out from the basic valve. b. operating by hand to make sure all the parts including basic valve. work automatically with energy of pipe system to achieve energy conservation and environment protection. it can balance the tolerance from machining and sealing surface. repair it. when up cavity of basic valve is full of water please check if there's any leakage behind the valve. solenoid (8) and remote ball valve (9) are closed. pressure gauge (10) shows 0. fire bell (18). the following 3 methods will set the deluge valve into work condition immediately. close ball valve (7). mini strainer. 250 114.35 0.3 5.020 -0.60 +0.027 -0.69 -0.344 11.46 -0.469 Groove Depth MaxAllow Flare D(ref) Dia F mm/in mm/in 1.024 -0.015 -0. • Make sure the direction of flow is same as arrow on basic valve.625 15.79 -0.142 3.750 377.084 110.071 1.1 6.945 62.750 19.625 15.74 0.031 -0.77 0.0 0.063 +1.650 161.750 19.344 8.063 -0.030 -0.61 +0. welding slags and other sundries.91 0.9 0.031 -0.79 -0.114 3.2 4.89 +0.9 0.015 -0.395 154.109 34.091 2.9 5.77 0.158 4.720 219.11 0.030 +0.88 0. • Horizontal installation is the best choice. Allow wall thickness T mm/in 1. Xiaobei Huang Tel: 0086-531-87746667 E-mail: [email protected] 2.024 +0.339 268.114 2.69 -0. PN10.7 5.358 43. maintenance gate valves were also suggested to be installed before and after the basic valve.2 12.022 -0.3 0. Stainless steel pilot valve: WD-200-SK760X-24-PP-10 Notes for Installation of Hydraulic Control Valve • Check the uniformity of name plate.063 +1.1 6.7 4.4 1.05 0.6 3..60 +0.092 2.938 25.177 4.063 1.579 170.3 0.984 Min.528 273.334 129.56 -0.79 -0. Zhaoxia Su Tel: 0086-531-87879384 Fax: 0086-531-87879387 E-mail: [email protected] +0.563 159.870 533.750 19.91 0.76/±0.88 0.91 0.05MPa).091 2.83 0.3 0.3 1.567 109.76 -0.46 20.44 +0.9 10.020 -0.031 -0.015 -0.035 +1.76/±0.085 2.0 16.4 10. and other installing direction can also be chosen and work properly.88 0.344 8.516 219.11 0.0 20.41 +0.com Exporting Sales Department: Ms.99 1.020 -0.79 -0.5 8.625 15.56 -0.063 +1.031 -0.063 +1.08 4.031 -0.77 0.056 +1.0 0.91 0.76 -0.842 322.5 0.28 10.094 2.79 -0.2 2.063 1.091 2.469 11.469 11.60 -0.99 0.60 +0.3 4. Dual-Chamber diaphragm type slow control valve for drinking water piping system.623 420.0 2.022 -0.74 0.052 +1.030 -0.023 -0.79 -0.05 0.469 11.03 5.330 163.562 312.625 15.339 167.74 0.64 -0.845 84.0 5. with electromagnetic valve controlling.535 45.79 -0.79 -0.020 -0.020 +0.030 -0.575 134.3 0.74 0.40 0.05 0.79 -0.063 +1.8 0.071 1.38 -0.0 10.625 15.025 -0. brass pilot valve: WW-080-SK750X-12-QT-16 DN200.5 12.779 57.344 8.38 -0.7 1.07 +0.625 15.900 60.625 15.5 5.029 +0.88 0.441 262.250 165.331 214.51 -0. damage and loosing after installation.9 3.344 8.250 139.109 2.344 8.60 10.063 +1.772 529.875 76.5 16.6 0.60 8.40 1.375 73.13 0.60 +0.8 0.56 -0.0 6.071 2.8 0.79 -0.750 19.531 371.38 -0.05 0. Sunny Guo Tel: 0086-531-87885036 Fax: 0086-531-87879387 E-mail: [email protected] 2.91 0.7 3. Stainless steel basic valve body. • Strainer is suggested to be installed before the basic valve.344 8.344 8.14 0.88 0.60 +0. • Check the connection of conduits to make sure no broken.083 2.500 141.063 +1.9 12.071 1.031 -0.281 7.98 0.045 +1.027 -0.705 49.3 6.750 318.114 2.60 +0.031 -0.38 -0.469 11.14 0.084 2.05MPa With throttle opening With indication of position With exhaust unit With Double liquid level control With flushing function in up chamber Other special requirement 00 03 06 09 12 15 18 21 24 27 30 33 36 39 99 ⑤ Ductile Iron Q Carbon Steel C Stainless Steel P ⑥ Al-bronze T Stainless steel P ⑦ 10 16 25 Roll Groove Dimensions Roll Grooving Machine Pipe OD Basic mm/in 33.1 8. • Check the repairing ball valve to make sure they're open after installation.625 267.031 -0.344 8.76 -0.79 -0.29 12.625 15.197 Examples: DN80..68 -0.091 2.653 221.60 0.77 0.34 0.078 2.79 -0.031 -0. Ductile iron basic valve body.46 -0.842 426.88 0.018 -0.26 2.79 -0.9 0.61 -0.40 8.76 -0.60 +0.2 2.52 -0. quality guarantee card and marking on valve products.085 2.665 275.579 143.09 1.5 14.74 0.03 mm/in 7.11 0.063 1.469 11.3 1.8 0.085 2.39 0.625 15.030 -0.281 8.50 +0.553 523.158 4.109 2.063 1.13 5.327 42.025 -0.4 10.60 +0.94 3.32 +0.79 -0. Dual-chamber diaphragm type remote float control valve for water supply piping system.449 75.625 15.50 6.017 +0.319 318.91 0.015 -0.031 -0.05 0.022 -0.9 0.5 0.539 323.96 6.026 -0.90 12.74 0.76 +0.029 -0.73 4.720 270.114 2.88 0.91 0.44 14.469 11.083 2.74 0.500 108.76 -0.74 0.031 -0.15 2.11 0.083 160.250 69.79 -0.6 0.79 -0. specially used for the pool water (under 0. • The protection plugs on the both ends are suggested to be removed just before installation to avoid sundries coming inside.com Sales Department: Exporting Sales Department: Ms.79 -0.000 88.608 Tolerence mm/in -0.46 16.4 1.625 15.031 -0.961 77.0 12.91 0.16 0.827 Tolerence mm/in +0.88 0.98 0.500 133.0 4.334 137.084 135.com 150 6 200A 8 200 8 250A 10 250 10 300A 12 300 12 350 14 400 16 500 20 46 47 .941 428.76 -0.177 5.018 -0.1 3.344 103.03 mm/in 15.60 +0.74 -0.063 +1.42 +0.455 211.74 0.142 4.23 1.14 +0.059 90.055 +1.3 0.625 15.842 379.83 0. 700 ③ Basic valve (Dual-chamber diaphragm) SK700X Basic valve (Single-chamber diaphragm) SK400X Basic valve (Piston type) SK800X Electromagnetic control valve SK710X Pressure reducing valve SK720X Pressure relief & sustaining valve SK730X Remote float control valve SK750X Slow shut control valve (Pump control valve) SK760X Pressure differential by-pass balancing valve SK780X Deluge alarm valve SK790X ④ No other special requirements Special closing and opening speed Non-retuning With high sensitive pilot valve With electromagnetic valve With electromagnetic valve and non-return With overpressure protection pilot valve With dual-disc Cracking pressure lower than 0.8 6.7 6.88 0.16 0.114 2.88 0.031 -0.083 2.9 0.078 1.344 8.51 -0.9 0.51 -0.022 -0.60 0. • Clean the pipes and make sure no rocks.60 +0.60 0.14 0.031 -0.063 +1.720 72.031 Groove Dia C Basic mm/in 30.0 14.77 0.319 116.030 -0.3 2. For English Speaking Service R&D Center: Chief Engineer: Ms.500 168.750 19.16 0.000 Groove Width B ±0.60 0.114 2.078 1.083 2.7 5.46 -0. PN16.9 0.063 +1.042 +1.88 0.311 141.74 0.88 0.BS VALVES Ordering Guide of Hydraulic Control Valve Piping system (two words) Size in mm (three digitals) Main property(three digitals) Other property(two digitals) Material of basic valve (one letter) Material of pilot valve (one letter) Pressure in bars (two digitals) ① Water supply piping system: WW Drinking water piping system: WD Aggressive water piping system: WA Air conditioning water piping system: WC Heating piping system: WH ② 050 065 080 .018 -0.344 8.020 -0.88 0.0 6.109 2.031 -0.625 216.88 0.669 48.625 15.09 2.60 +0.030 Nominal Size mm/in 25 1 32 1¼ 40 1½ 50 2 65 2½ 65 2½ 80 3 100 4 100 4 125 5 125 5 125 5 150 6 150 6 Gasket seat A ±0.469 11.64 -0.016 +0.938 23.88 0.031 -0.031 -0.9 0.0 20.74 +0.063 +1.109 2.190 38.56 -0.05 0. besides.74 0.8 8.344 8.0 0.281 7.677 326.74 0.469 11.091 2.48 5.625 15.91 0.114 2.5 1.3 8.51 -0.093 2.40 +0.625 19.750 23.79 -0. 5 35 37.5 24.5 25.5 40 45 46 49 52 55 Malleable Iron 14 14 16 16 18 18 20 20 20 22 22 24 24 26 26 - Dimens ions of P N10 f langes ( B S E N 1092.5 26.5 24.5 28 30 31.2: 1997) (mm) Mating dimensions DN （mm） Outside diameter Diameter of bolt Diameter of bolt of flange circle hole D K L 90 95 105 115 140 150 165 185 200 220 250 285 340 405 460 520 580 640 715 840 910 1025 1125 1255 1485 1685 1930 2130 2345 60 65 75 85 100 110 125 145 160 180 210 240 295 355 410 470 525 585 650 770 840 950 1050 1170 1390 1590 1820 2020 2230 14 14 14 14 19 19 19 19 19 19 19 23 23 28 28 28 31 31 34 37 37 41 41 44 50 50 57 57 62 Bolts Number n 4 4 4 4 4 4 4 4 8 8 8 8 12 12 12 16 16 20 20 20 24 24 28 28 32 36 40 44 48 Nominal size M12 M12 M12 M12 M16 M16 M16 M16 M16 M16 M16 M20 M20 M24 M24 M24 M27 M27 M30 M33 M33 M36 M36 M39 M45 M45 M52 M52 M56 Grey Iron 14 14 16 16 18 18 20 20 22 24 26 26 30 32 32 36 38 40 42 48 54 58 62 66 Flange thickness C Ductile Iron 14 14 16 16 18 19 19 19 19 19 19 19 20 22 24.BS VALVES Flange Dimensions Flange Dimensions Dimensions of PN10 flanges (BS EN 1092-2:1997) (mm) Mating dimensions DN （mm） Outside diameter Diameter of bolt Diameter of bolt of flange circle hole D K L 90 95 105 115 140 150 165 185 200 220 250 285 340 395 445 505 565 615 670 780 895 1015 1115 1230 1455 1675 1915 2115 2325 60 65 75 85 100 110 125 145 160 180 210 240 295 350 400 460 515 565 620 725 840 950 1050 1160 1380 1590 1820 2020 2230 14 14 14 14 19 19 19 19 19 19 19 23 23 23 23 23 28 28 28 31 31 34 34 37 41 44 50 50 50 Bolts Number n 4 4 4 4 4 4 4 4 8 8 8 8 8 12 12 16 16 20 20 20 24 24 28 28 32 36 40 44 48 Nominal size M12 M12 M12 M12 M16 M16 M16 M16 M16 M16 M16 M20 M20 M20 M20 M20 M24 M24 M24 M27 M27 M30 M30 M33 M36 M39 M45 M45 M45 Grey Iron 14 14 16 16 18 18 20 20 22 24 26 26 26 28 28 30 32 32 34 36 40 44 46 50 56 62 68 70 74 Flange thickness C Ductile Iron 14 14 16 16 18 19 19 19 19 19 19 19 20 22 24.5 30 32.5 26.5 43 46.5 50 57 60 65 70 75 Malleable Iron 14 14 16 16 18 18 20 20 20 22 22 24 24 26 28 - 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000 1200 1400 1600 1800 2000 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000 1200 1400 1600 1800 2000 48 49 .5 36 39. BS VALVES Note: 50 51 .