34-SAMSS-611

Materials System Specification34-SAMSS-611 20 March 2013 Safety Relief Valves - Conventional and Balanced Types Document Responsibility: Instrumentation Standards Committee Saudi Aramco DeskTop Standards Table of Contents 1 Scope............................................................. 2 7 Design............................................................ 3 8 Material........................................................... 4 9 Inspection and Shop Tests (Addition)............ 4 12 Shipment (Addition)........................................ 5 Appendix A - Pressure Relief Valve Specification Sheet................................. 7 Appendix B - Nameplate Data............................... 8 Previous Issue: 9 August 2009 Next Planned Update: 20 March 2018 Revised paragraphs are indicated in the right margin Primary contact: Al-Awami, Luay Hussain on +966-3-8801341 Copyright©Saudi Aramco 2013. All rights reserved. Page 1 of 8 modification. The text in each paragraph below is an addition. Paragraph numbers not appearing in API STD 526 are new paragraphs to be inserted in numerical order. General Purpose American Petroleum Institute API STD 526 Flanged Steel Pressure Relief Valves API STD 527 Seat Tightness of Pressure Relief Valves Page 2 of 8 .1 Pipe Threads. Sixth Edition. which is a part of this specification. API STD 526 is modified. 2 References (Addition) Material or equipment supplied to this specification shall comply with the latest edition of the references listed below unless otherwise noted. exception. April 2009. Saudi Aramco Documents Saudi Aramco Engineering Procedure SAEP-302 Instructions for Obtaining a Waiver of a Mandatory Saudi Aramco Engineering Requirement Saudi Aramco Inspection Requirements Form 175-341900 Safety Relief Valves Conventional and Balanced Types Saudi Aramco Forms and Data Sheets SA-8020-611-ENG Instrument Specification Sheet Safety Relief Valves Industry Codes and Standards American National Standards Institute ANSI B1. to cover requirements for pressure relief valves that have threaded connections.20.Document Responsibility: Instrumentation Standards Committee 34-SAMSS-611 Issue Date: 20 March 2013 Next Planned Update: 20 March 2018 Safety Relief Valves . or deletion to API STD 526 as noted. The following paragraph numbers refer to API STD 526. as indicated in this specification.Conventional and Balanced Types 1 Scope This specification together with Buyer's Quotation Request or purchase order and Specification Sheet(s) SA-8020-611-ENG define the minimum technical requirements for conventional and balanced type industrial safety relief valves. Dhahran.5 Pipe Flanges and Flanged Fittings American Society for Testing and Materials ASTM E10 Standard Test Methods for Brinell Hardness of Metallic Materials ASTM E18 Standard Test Methods for Rockwell Hardness of Metallic Materials National Association of Corrosion Engineers/International Standardization Organization NACE MR0175/ISO 15156 1. 7 Design 7. 1.6 Orifice Areas and Designations (Clarification) The orifice areas shown on the Specification Sheet(s) Form SA-8020-611-ENG Lines 66 and 67 are the calculated required area. and forms shall be resolved in writing by the Company or Buyer's Representative through the Manager. who shall follow internal company procedure SAEP-302 and forward such requests to the Manager.5 Petroleum and Natural Gas IndustriesMaterials for use in H2S-Containing Environments in Oil and Gas Production Conflicting Requirement (Replacement) Any conflicts between this specification and other applicable Saudi Aramco Materials System Specifications (SAMSSs). codes. Relief valve sizing calculations shall be shown on the Form or included as an additional sheet.Conventional and Balanced Types American Society of Mechanical Engineers ASME SEC VIII D1 Rules for Construction of Pressure Vessels ASME B16. Direct all requests to deviate from this specification in writing to the Company or Buyer's Representative.Document Responsibility: Instrumentation Standards Committee 34-SAMSS-611 Issue Date: 20 March 2013 Next Planned Update: 20 March 2018 Safety Relief Valves . and the selected standard API area respectively.1 ASME Code Requirement (Addition) All safety relief valves specified by this SAMSS shall be designed and manufactured and tested in accordance with the ASME Boiler and Pressure Page 3 of 8 . Standard Drawings (SASDs). Dhahran. or industry standards. Process & Control Systems Department of Saudi Aramco. Engineering Standards (SAESs). Process & Control Systems Department of Saudi Aramco. platings or coatings. Manufacturer shall conduct tests on a production sampling basis on all affected components or produce test documentation to certify the base material has been Page 4 of 8 . Bonnet caps shall be drilled and tapped 3 8 thread per ANSI B1.2 Body and Spring (Addition) Spring materials shall be per manufacturers’ standard and shall be suitable for the intended service.20.1. 8 Material 3. the manufacturer shall conduct hardness tests on all wetted parts in accordance with ASTM E10 or ASTM E18. 7. 9 Inspection and Shop Tests (Addition) Minimum inspection requirements are specified in Saudi Aramco Inspection Requirement Form 175-341900. A solid steel plug shall be inserted prior to shipment. Pressure temperature limits for threaded pressure relief valves shall be specified by the manufacturer and approved by Company.3 Valve Selection (Addition) Tables 3 through 16 apply to flanged valves only. welds and heat affected zones of welds exposed to corrosive components shall meet the hardness and heat treatment requirements as specified in NACE MR0175/ISO 15156.4 Dimensions (Addition) Dimensions for threaded pressure relief valves shall be per manufacturers’ specification.Document Responsibility: Instrumentation Standards Committee 34-SAMSS-611 Issue Date: 20 March 2013 Next Planned Update: 20 March 2018 Safety Relief Valves . Threaded connections shall comply with ANSI B1.1 General (Addition) In sour service all wetted parts. When NACE MR0175/ISO 15156 is specified in the Purchase Order. 7. including those for liquid services.Conventional and Balanced Types Vessel Code and shall carry the appropriate stamp.20.1. 7.6 Special Construction Features (Addition) Special features shall be supplied as specified per SA-8020-611-ENG. This includes material under overlays. 3. 12 Shipment (Addition) Export packing. paint description. of the total number of valves ordered shall be selected for a repetition of the Vendor's (set) pressure and leakage tests and shall produce a record which should duplicate the original test result. certified drawings and Vendor's catalog description as applicable. Test Requirements (Addition) Production tests shall comply with ASME Boiler and Pressure Vessel Code Requirements. b) Verification of the identification name plate for compliance with the data of Appendix B. Threaded openings shall be plugged with suitable protective devices.6 a) Compliance with the purchase order description. 9. Test results shall be traceable to Purchase Order line items. c) Verification of satisfactory workmanship. then all the valves ordered must be rechecked in the presence of the inspector. When so specified on the Purchase Order.3). relevant specifications. components. UG-136 (d) (2. 30%. Pressure Vessel Code. Temporary plugs should be readily distinguishable from permanent metal plugs. material.Document Responsibility: Instrumentation Standards Committee 34-SAMSS-611 Issue Date: 20 March 2013 Next Planned Update: 20 March 2018 Safety Relief Valves .5 Visual Inspection (Addition) Visual inspection and physical check shall be made when so specified in the Purchase Order: 9. If the recheck of one or more valves does not satisfy the inspector. 9. with a minimum of one.Conventional and Balanced Types tested. The “design pressure of the parts” in UG-136 (d) (2) shall mean vendor's maximum design pressure for the subject valve (NOT SET PRESSURE of SUBJECT VALVE). Page 5 of 8 . dimensions and freedom from surface defects. marking and shipping shall be in accordance with the requirements of the Purchase Order. Components or base metal shall be tested on a heat lot basis.4 Hydrostatic Test (Addition) This test shall be conducted in accordance with ASME SEC VIII D1. Document Responsibility: Instrumentation Standards Committee 34-SAMSS-611 Issue Date: 20 March 2013 Next Planned Update: 20 March 2018 Safety Relief Valves . 20 March 2013 Revision Summary Revised the “Next Planned Update”. Reaffirmed the contents of the document. and reissued with editorial changes. Page 6 of 8 .Conventional and Balanced Types Inlet and outlet flanges shall be protected to prevent damage from or entrance of foreign material during shipment. Page 7 of 8 .S.S.Document Responsibility: Instrumentation Standards Committee 34-SAMSS-611 Issue Date: 20 March 2013 Next Planned Update: 20 March 2018 Safety Relief Valves . 2.) (Replacement) For requirements that are specific for each individual safety relief valve refer to: Form SA-8020-611-ENG Sheets 1.Conventional and Balanced Types Appendix A – Pressure Relief Valve Specification Sheet Instrument Specification Sheet (I. and 3 Instrument Specification Sheet Safety Relief Valves Conventional and Balanced Types. Conventional and Balanced Types Appendix B – Nameplate Data Nameplate Data (Addition. Page 8 of 8 . if applicable) Valve to NACE MR0175/ISO 15156.Document Responsibility: Instrumentation Standards Committee 34-SAMSS-611 Issue Date: 20 March 2013 Next Planned Update: 20 March 2018 Safety Relief Valves .