Pip PIC001

COMPLETE REVISIONP&ID Sample se U al ci PIP PIC001 er Piping and Instrumentation Diagram m Documentation Criteria om rC fo ot -N e pl m Sa PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES In an effort to minimize the cost of process industry facilities, this Practice has been prepared from the technical requirements in the existing standards of major industrial users, contractors, or standards organizations. By harmonizing these technical requirements into a single se set of Practices, administrative, application, and engineering costs to both the purchaser and the manufacturer should be reduced. While this Practice is expected to incorporate the majority of requirements of most users, individual applications may involve requirements that will be appended U to and take precedence over this Practice. Determinations concerning fitness for purpose and particular matters or application of the Practice to particular project or engineering situations should al not be made solely on information contained in these materials. The use of trade names from time to time should not be viewed as an expression of preference but rather recognized as normal usage ci in the trade. Other brands having the same specifications are equally correct and may be substituted for those named. All Practices or guidelines are intended to be consistent with applicable laws and er regulations including OSHA requirements. To the extent these Practices or guidelines should conflict with OSHA or other applicable laws or regulations, such laws or regulations must be m followed. Consult an appropriate professional before applying or acting on any material contained in or suggested by the Practice. om This Practice is subject to revision at any time. rC © Process Industry Practices (PIP), Construction Industry Institute, The University of Texas at fo Austin, 3925 West Braker Lane (R4500), Austin, Texas 78759. PIP Member Companies and Subscribers may copy this Practice for their internal use. Changes or modifications of any kind are not permitted within any PIP Practice without the express written authorization of PIP. Authorized Users ot may attach addenda or overlays to clearly indicate modifications or exceptions to specific sections of PIP Practices. Authorized Users may provide their clients, suppliers and contractors with copies of the -N Practice solely for Authorized Users’ purposes. These purposes include but are not limited to the procurement process (e.g., as attachments to requests for quotation/ purchase orders or requests for proposals/contracts) and preparation and issue of design engineering deliverables for use on a specific project by Authorized User’s client. PIP’s copyright notices must be clearly indicated and e unequivocally incorporated in documents where an Authorized User desires to provide any third party pl with copies of the Practice. m Note: PIP PIC001, Piping and Instrumentation Diagram Documentation Criteria, incorporates symbols Sa previously published in standards owned and copyrighted by The Instrumentation, Systems, and Automation Society (ISA). These are printed with agreement from ISA. PUBLISHING HISTORY November 1998 Issued April 2008 Complete Revision Not printed with State funds COMPLETE REVISION April 2008 P&ID se U al ci PIP PIC001 er Piping and Instrumentation Diagram m Documentation Criteria om Table of Contents PIC001-B-003-1 – Appendix B-3 – Driven 1. Introduction .................................2 Equipment Legend Sheet rC 1.1 Purpose ............................................2 PIC001-B-003-2 – Appendix B-3 – Heat Transfer Equipment Legend Sheet 1.2 Scope ...............................................2 PIC001-B-003-3 – Appendix B-3 – Vessels & Tanks Legend Sheet fo 2. References ..................................2 PIC001-B-003-4 – Appendix B-3 – Solids & 2.1 Process Industry Practices ...............3 Material Handling Equipment Legend Sheet 2.2 Industry Codes and Standards .........3 PIC001-B-003-5 – Appendix B-3 – Fire & ot 2.3 Government Regulations ..................3 Safety Equipment Legend Sheet PIC001-B-004 – Appendix B-4 – Typical -N 3. Definitions ...................................3 Details with Implied Components Appendix C – Example P&IDs 4. Requirements ..............................6 PIC001-C-001 – Appendix C-1 – Example 4.1 General .............................................6 Process P&ID 1 e 4.2 Format ..............................................6 PIC001-C-002 – Appendix C-2 – Example 4.3 Equipment ......................................11 Process P&ID 2 pl 4.4 Piping ..............................................17 PIC001-C-003 – Appendix C-3 – Example 4.5 Instrumentation and Controls .........20 Utility P&ID m Appendix D – P&IDs for the Hygienic Processing Appendixes Industries Sa Appendix A – Detailed Equipment Labels PIC001-DB-001 – Appendix DB-1 – Hygienic PIC001-A-001-1 – Appendix A – Suggested Process Piping Legend Sheet Detailed Equipment Labels PIC001-DB-002 – Appendix DB-3 – Hygienic PIC001-A-001-2 – Appendix A – Suggested Process Equipment Legend Sheet Detailed Equipment Labels PIC001-DC-001 – Appendix DC-1 – Hygienic Process Example Process P&ID 1 Appendix B – Legend Sheets PIC001-DC-002 – Appendix DC-2 – Hygienic PIC001-B-001 – Appendix B-1 – Typical Process Example Process P&ID 2 Piping Legend Sheet PIC001-DC-003 – Appendix DC-3 – Hygienic PIC001-B-002 – Appendix B-2 – Typical Process Example Process P&ID 3 Instrumentation Legend Sheet Process Industry Practices Page 1 of 43 While this Practice is expected to m incorporate the majority of requirements of most users. hardware. 1. Development of project- specific cover sheets is recommended using the PIP native files as a starting point. Short titles are used herein where appropriate.1 Purpose This Practice provides requirements for designers preparing Piping and Instrumentation Diagrams (P&IDs). construction. and cover sheets are available to PIP e- Member Companies for input to members’ CAD systems. ci This Practice applies to all diagrams that fit the definition of a P&ID in Section 3. The Practice is independent of time in a facility life cycle and encompasses design. and references shall be considered an integral part of this Practice. or software specific. Additions and/or deletions are allowed to meet requirements. and maintenance. This Practice also applies to P&IDs provided by packaged equipment al vendors. m 2. The edition in effect on the date of start of P&ID development shall be used. U This Practice covers the generation of new P&IDs and does not apply to the revision of existing P&IDs. operations. Example P&IDs are included to N provide an illustration of how the elements of this Practice are combined into a P&ID.1 Process Industry Practices (PIP) – PIP INEG1000 – Insulation Design and Type Codes – PIP PCCIP001 – Instrument Piping and Tubing Systems Criteria – PIP PCSIP001 – Instrument Piping and Tubing Systems Specifications Page 2 of 31 Process Industry Practices . Cover sheet borders and pl title blocks can be altered. 2. Introduction 1. References Sa Applicable parts of the following Practices. The requirements provided in this Practice can be applied to any CAD system used for er developing the P&IDs and are not vendor. except as otherwise noted. Electronic native files for the text. The example P&IDs included in the Appendixes of this Practice are not intended to o recommend specific design details or requirements.2 Scope se This Practice describes the requirements for P&ID format and content. symbols. Determinations concerning fitness for purpose and particular matters or application of the Co Practice to particular project or engineering situations should not be made solely on information contained in these materials. individual applications may involve requirements that will be appended to and take precedence over this Practice. industry codes and standards. m The requirements provided in this Practice provide a balance between showing all data on P&IDs and making P&IDs legible and easy to read.PIP PIC001 COMPLETE REVISION Piping and Instrumentation Diagram Documentation Criteria April 2008 1. electric or hydraulic. auxiliary P&ID: Used to show details to unclutter other P&IDs (e. Definitions For the purposes of this Practice. and Automation Society (ISA) – ISA 5.01 – Application of Safety Instrumented Systems for the Process Industries • m Tubular Exchanger Manufacturers Association (TEMA) – TEMA Standards m 2. Examples of control Process Industry Practices Page 3 of 31 . Manually-operated valves are sometimes tagged as automated valves (e.119 – Occupational Safety and Health Standards. Actuators are typically air-operated (diaphragm Sa or piston). lube oil system. set point changes. Systems... sample systems.3 Metallic Piping Systems – PIP PNSM0001 – Piping Line Class Designator System 2. instrument details) Basic Process Control System (BPCS): Control equipment and system installed to regulate normal production functions.g. single-loop electronic controllers. Examples are throttling control valves and on/off block valves.g.2 Industry Codes and Standards • American National Standards Institute (ANSI) – ANSI/FCI 70-2-2003 – Control Valve Seat Leakage • American Society of Mechanical Engineers (ASME) se – ASME Boiler and Pressure Vessel Code Section VIII – Pressure Vessels U • The Instrumentation. the following definitions apply: e- accessible: Term applied to a device or function that can be used or seen by an operator for the purpose of performing control actions (e. and Distributed Control Systems (DCSs).3 – Graphic Symbols for Distributed Control / Shared Display Instrumentation.g.. Programmable Logic Controllers (PLCs). some with a spring-return function.2 – Binary Logic Diagrams for Process Operations ci – ISA 5.1) m automated valve: Any valve with a locally or remotely controlled actuator. The BPCS is required to operate the process.1 – Instrumentation Symbols and Identification al – ISA 5.3 Government Regulations Co • Occupational Safety and Health Administration (OSHA) – OSHA 29 CFR 1910. Logic and Computer Systems er – ISA 84. auto-manual transfer. Process Safety Management of Highly Hazardous Chemicals o N 3. It may contain combinations of single-loop pneumatic controllers. or on/off pl actions) (Reference ISA 5.COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria – PIP PNE00001 – Design of ASME B31. if a manual valve is fitted with position switches). sequencing.1) er fail locked (FL) last position: Characteristic of an automated valve that causes the valve to remain in m the last (locked) position as a result of specific malfunctions. shell. (Reference ISA 5. Page 4 of 31 Process Industry Practices . (Reference ISA 5. including loss of signal or motive power. line class: Section of the Piping Material Specifications that provides a listing of piping components for specific design conditions. override control. (See also HLCS and SIS) bubble: Circular symbol used to denote and identify the purpose of an instrument or function. HLCS functions are typically based in process computers or higher level DCS hardware that interacts with the process by manipulating set pl points in the BPCS. or protective interruption of normal process control functions. Appendix 3) se fail closed (FC): Characteristic of an automated valve that causes the valve to close as a result of U specific malfunctions. o heat exchanger type: Type designation shall be shell and tube. de-pressuring or de-inventorying. The bubble usually contains a tag number. (Synonym for balloon) (Reference ISA 5. Section VIII. including loss of signal or motive power. Some automated valves will not stay at the last position upon failure and instead move with the ci process differential pressure. (Reference ASME Boiler Pressure Vessel Code. in accordance with TEMA. Additional equipment may be needed to meet the definition of FC. isolation valve: A valve used for isolation of process equipment while performing activities such as purging. Automated valves may fail indeterminately without additional equipment. Division 1.1) Co hand switch (HS): Any operator-manipulated discrete control device. in that order. e- Higher Level Control System (HLCS): Provides sophistication above that of the BPCS. initiates a predefined action. use the three-letter designation describing stationary head. or FL.1) fail indeterminate (FI): Characteristic of an automated valve that causes the valve to move to an al unknown position as a result of specific malfunctions. and rear end or head. Examples of control functions in the HLCS are statistical process control and model predictive control.1) m fail open (FO): Characteristic of an automated valve that causes the valve to open as a result of specific malfunctions. spiral. and pump start/stop. For N shell and tube exchangers. (Reference ISA 5. in response to a predetermined condition. Protective interlocks are typically further defined as being either safety-related or commercial-related (asset or production protection). (Reference ISA 5.1) design pressure: Pressure used in the design of a vessel component together with the coincident design metal temperature for determining the minimum permissible thickness or physical characteristics of the different zones of the vessel. Also known as Basic Regulatory Controls. including loss of signal or motive power. This valve is also commonly referred to as the primary block valve.PIP PIC001 COMPLETE REVISION Piping and Instrumentation Diagram Documentation Criteria April 2008 functions included in the BPCS are cascade control. including hardwired panel switches and software points. including loss of signal or motive power. The HLCS is not necessary to operate the process. plate and frame. etc. (See also BPCS and SIS) m interlock: System that. Sa Typically comprised of binary (on/off) signals and logic used for process control. FO. (Reference ISA 84.g. and Safety Interlock System (SIS).g.g. Examples are vent and drain valves. piping. logic solvers.. DCS-based or PLC-based... equipment. Typically.g. er Safety Integrity Level (SIL): One of four possible discrete integrity levels (SIL 1. SIL 3. an instrument) that contacts the process and is used to isolate the device from the process.1 Most details available from other types of documentation (e. 4.1. and Mechanical Flow Diagrams (MFDs) U Programmable Electronic System (PES): Logic performed by programmable or configurable devices (Reference ISA 84. and instrumentation) necessary to design. identified as part of the equipment m that is exposed to the process. construct and operate the facility. trim is purchased independently from the equipment. a hardware device or a software point that is identified with an ISA style tag number e- Tight Shut-Off (TSO): Tight Shut-Off is defined in this Practice as ANSI Class V or ANSI Class VI in accordance with ANSI/FCI 70-2 pl trim: Item attached to equipment as an integral component. and SIL 4) of Safety Instrumented Systems. welded to the bottom of a vertical vessel and extended to o the base support N tagged: For the purposes of labeling instrumentation and control components. This valve is typically ci a line class valve used for shut-off and isolation. instrument loop diagrams and vessel data sheets) should not be included on P&IDs. instrument bridles. SILs are defined in terms of Probability of Failure on Demand (PFD). plugs. Common synonyms for P&IDs include Engineering se Flow Diagrams (EFDs). SIL 2. relays) or Programmable Electronic Systems (e. Co Safety Shutdown System (SSD).01) m Safety Instrumented Systems (SIS): Systems composed of sensors. and having a function local to the equipment being served. and final control m elements for the purpose of taking the process to a safe state if predetermined conditions are violated.01) al root valve: First valve or valves between the process and an auxiliary device (e.01) (See also BPCS and HLCS) skirt: Cylindrical supporting structure. It can be either hardwired (e. packaged equipment: One or more pieces of equipment furnished by a vendor with supportive devices and components to perform a specific operation as a unit Piping and Instrumentation Diagram (P&ID): Detailed graphical representation of a process including the hardware and software (i. Other terms commonly used include Emergency Shutdown System (ESD or ESS).1 General 4... including dual- redundant or triple-redundant microprocessors).e. Requirements 4. Utility Flow Diagrams (UFDs). or other Sa miscellaneous items associated with a piece of equipment. blind flanges. Process Industry Practices Page 5 of 31 . (Reference ISA S84.COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria logic solver: Control equipment that performs the logic function. 2.g.1 Layout Comment: The layout and orientation statements specified herein are al recommended as optimal. cooling water supply in bottom of exchanger tube bundle and cooling water return out top).) Additional examples can be added as required. although not encouraged. Co 4.3 While the intent of this Practice is to simplify the P&IDs through the use of implied components and cover sheets.2 Drawing size shall be 22 inches x 34 inches. secondary. Flow-through equipment shall be shown relative to actual arrangement (e.2.4 Flow Orientation e- 1.25 inch horizontally from the right inside borderline in accordance with Appendix C. integration plan. Therefore. No more than three pieces of major equipment shall be o shown on a P&ID.1. and instrumentation lines shall be shown entering the P&ID horizontally 0. se 4. may be required due to space constraints.).1. Primary flow shall be shown on each P&ID from left to right.2. safety reviews.3 Each P&ID shall be laid out to avoid clutter and allow future modifications.2.1. and slight deviation.25 inch from the left inside borderline and exiting 0.5 Primary process lines shall be shown heavier than secondary and utility Sa lines as described in Section 4. The top of a horizontal line and the left side of a vertical line shall be the top of a pipe.1.2. m 3. (See the cover sheet in Appendix B for examples. A note shall be used to clarify the orientation as required. 4. 4. ci 4..1 Piping Orientation er 1. 4. Off-page and off-plot connectors for primary. It is the responsibility of the project team to determine the compatibility of implied components with project needs and work processes (e.1. 4. m 4. 2. pl 2. A set of pumps in the same service shall be one piece N of equipment for the purpose of a P&ID layout in accordance with Appendix C.6 Connector Symbols 1.3. Utility connectors can be shown at any convenient location on the body of the P&ID.2. Page 6 of 31 Process Industry Practices . material take-off method.1.2.2 This Practice uses the concepts of typical details with implied components where appropriate to simplify P&IDs..1. m 2. this Practice does not require the use of implied components. etc.2 Format U 4.PIP PIC001 COMPLETE REVISION Piping and Instrumentation Diagram Documentation Criteria April 2008 4. this may not be compatible with the work processes or design software used for a project. The bottom of a horizontal line and the right side of a vertical line shall be the bottom of a pipe.2.g.1. pl 4. auxiliary P&ID. Reactor Feed.9 Equipment arrangement shall be shown relative to its elevation to grade (e.. “Primary” P&ID and auxiliary P&ID shall be cross-referenced. text associated with off- page and off-plot connectors on the right side of a P&ID should be o right justified.1. er 3.2.COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria 4. the lines shall match the connecting drawing match lines in se accordance with Appendix C. Service description for an instrument off-page and off-plot m connector shall be shown as a line function (e. Service description.g.10 A control valve actuator shall be shown above a horizontal line or left of a vertical line.g. Cracked Gas) or line m description (e. e- 4.2.1. Text associated with off-page and off-plot connectors on the left side of the P&ID should be left justified. 4.5 inch away from the actuator in a vertical line. 4.g. To depict plot plan orientation.8 Connector Descriptions U 1.1.. connector number.. or loop number. Origin/destination shall be shown as an equipment number. and auxiliaries can be shown on a separate.11 If a control valve identification bubble is required. and origin/destination shall be shown for off-page and off-plot al connectors in accordance with Appendix A-3.. Service description for a piping off-page and off-plot connector shall be shown as name of fluid (e.5 in away from the actuator m in a horizontal line or 0.g. If match lines are required on utility collection/distribution P&IDs.14 Typical details shall be used if clutter can be eliminated without detracting from clarity. Tower Overhead). utility off-page connectors for a utility connection/distribution P&ID may be positioned vertically in accordance with Appendix C.7 Utility P&IDs 1. Utility collection/distribution P&IDs shall be laid out relative to plot plan orientation in accordance with Appendix C. the center point of the bubble shall be shown 0.5 inch to the left and 0.2. Examples are restriction orifices and stand-alone thermowells. Low Level Override) or equipment to be controlled (e.2. ci 2. Sa 4.5 inch directly left of an in-line instrument in a vertical line. instrumentation.2.1. Co 5.12 The center point of an instrument bubble shall be shown 0.1. pumps at bottom of P&ID) in accordance with Appendix C.1.2.1. P&ID number. Process Industry Practices Page 7 of 31 . 4. 2. on an auxiliary P&ID. 4.5 inch directly above an in-line instrument in a horizontal line or 0. These details shall be shown on the P&ID. or on a cover sheet.. N 4.2. PV-10014A/B). line number.g. 3.13 Pump and compressor driver piping.5 inch above and 0.2.1. Line numbers at entering off-page and off-plot connectors shall be justified at the top and left.03 inch.2. titles.5 Abbreviations shall be in accordance with Appendix A-1. m P-601A/B).2.06 inch from the line and shall be lined up vertically 0.e. titles. and service (e. 3. 4.PIP PIC001 COMPLETE REVISION Piping and Instrumentation Diagram Documentation Criteria April 2008 4. towers. Equipment numbers shall be underlined. Sa 4. Equipment title and data shall use a text height of 0. 4. Equipment number. and on the same horizontal plane as other equipment identification. Vertical text shall be read from bottom to top. title. and data for fixed or static equipment (i.4 Text Arrangement 1. 2. 2.2. and data for rotating equipment (i. Line numbers shall use a text height of 0.e.4. and on the same horizontal plane as other equipment identification. al 6.2 Equipment Information 1. N 3. blowers.02 inch.4. Equipment numbers shall use a text height of 0. pl 5. directly above the equipment. Equipment numbers. and data shall be shown once for identical equipment with the same number. filters. Equipment text shall be justified at the top and center.g. tanks. Text shall be shown horizontal if possible.3 Line Numbers Co 1.1 inch at a weight of 0. 4. exchangers. 3.4.16 inch at a weight of 0.4. se 5. ci pumps. compressors. e- 4..25 inch from the connector.. Page 10 of 31 Process Industry Practices . Equipment numbers. 2. Line number text shall be placed 0. title. m 6 Line numbering shall be shown with the orientation of the line. Line numbers shall be shown in accordance with Appendix A-3.2. vessels. and material U handling) shall be shown within 2 inches from the top inside borderline of the P&ID.. directly er below the equipment. See example shown in Appendix C.1 inch at a weight of o 0. m 7. and agitators) shall be shown within 2 inches from the bottom inside borderline of the P&ID.02 inch. Vertical text shall be placed to the left of supporting graphics if possible. Line numbers at exiting off-page and off-plot connectors shall be justified at the top and right. If al necessary.2. Process and utility nozzles may be labeled. See examples shown in Appendix C. Nozzle sizes shall be shown. 3. position switches.1 Equipment Symbols 1. etc. 3. control valve leakage criteria can be repositioned so as not to be obscured by other items shown on the actuator (i. Equipment shall be shown relative to associated equipment both in m size and general orientation.3.3. 4. See examples shown in Appendix C. Discretion shall be exercised for equipment symbols to not e- dominate the drawing.). Control valve seat leakage criteria (i. control valve size shall be shown between the actuator and valve body symbol.2 Nozzles Sa 1.3. 2. 2.2. m 4.1 General 4. N 2. pl 4. U 3. See examples shown in Appendix C. 4.). unless the size is implied by piping connections. tight shut-off [TSO]) shall be shown between the actuator and valve body symbol..3. If the valve size is not line size or easily inferred from adjoining pipe. Equipment shall be shown with simple outline representation.. shall be shown on equipment as single lines. PSEs. If necessary. or equipment. Control valve failure action abbreviation shall be shown at 0. including spares.e.3 Equipment Co 4.06 inch to the right of the control valve in vertical lines. handwheels.06 inch directly below the control valve in horizontal lines and 0. control valve size can be repositioned so as not to be obscured by other se items shown on actuator (i.7 For PSVs.COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria 4. Equipment symbols shall be shown in accordance with o Appendix A-2. handwheels.6 Control Valve Information 1.e.3 Equipment not specifically identified in this Practice shall be shown with an equipment symbol that is a reasonable representation of the equipment as it will exist in the field. ci position switches. the device size and m set pressure shall be shown close to the identification bubble. Process Industry Practices Page 11 of 31 . and pressure control valves (PCVs). Manways shall be shown as double lines. but the symbols shall be drawn large enough for clear understanding.1. Nozzles.4.e. reducers. 4.1.1. See examples shown in Appendix C..4. 5. etc. Equipment shall not be drawn to scale. er 4. For equipment not covered in this Practice.3.2.1. equipment data shall be shown as necessary. 4.3. Page 12 of 31 Process Industry Practices .1 The compressor symbol shall be shown for each stage of multistage compressors.2 Multistaged compressors can be shown on multiple P&IDs.3..1 Blower symbols shall be shown as centrifugal or positive displacement as required.3.1.1.4.2.10 Jacketing and tracing requirements for equipment shall be shown.3. Section 4.5 Drivers 4.3.3.3. turbine gland leak-off piping.2 Agitators 4. seal flush systems.3.2 Blowers shall be shown in accordance with Appendix A-2.9 Auxiliary system requirements for individual pieces of equipment (e.1.3 Compressors shall be shown in accordance with Appendix A-2. N 4. and turbines. 4. m 4.3.5. heat conservation) for equipment shall be shown as part of the equipment data.g. vent and drain valves.3.7 Equipment elevations shall not be shown unless the elevations are ci necessary to specify process requirements for associated equipment location or orientation relative to one another. sample systems) shall be shown on auxiliary P&IDs. 4.2.PIP PIC001 COMPLETE REVISION Piping and Instrumentation Diagram Documentation Criteria April 2008 4.2.1 The term agitator shall apply to mechanical mixers and aerators.12.3. instrument bridles) for equipment shall be shown.1 Drivers shall be shown with the driven equipment and shall use the symbols for motors. er 4. m lube oil systems.3.3. Classifications used in this Practice are shown in Section 4.3 Blowers pl 4. Co 4.1.8 Associated trim (e.3. m 4. Insulation o thickness shall be shown where applicable.3.3..1.3. 4.4 Equipment shall be identified by a classification letter and sequence number.4. 4.3. Details of internals that have no significant bearing on the piping design and layout or equipment operation shall be omitted.3. U 4.12 are used on the example P&IDs contained in Appendix C for illustrative purposes only. Comment: The classifications shown in Section 4.4.11 The type of insulation (e.1. diesel engines.3. al 4.4 Compressors 4.3.3.2 Agitators shall be shown in accordance with Appendix A-2.13 provides a complete list of equipment data for se all equipment addressed in this Practice.. 4.5 Equipment Item Number and Title/Service shall be shown as a minimum.6 Internals for equipment shall be shown as dashed lines as described in Section 4.1.2. e- 4.g.g. Sa 4.3. personnel protection.3. The classifications are only one example of classifications allowed by this Practice. 3.13. Bins.3. Vacuum D Mechanical Drivers Electric and Pneumatic Motors. Silos m V Vessels Separators.3. Spiral. Steam and Gas Turbines se E Heat Exchangers Unfired Heat Exchangers. Condensers. Driers. Mechanical Mixers B Blowers Centrifugal Blowers. Air U Coolers F Furnaces Fired Heaters.13 Equipment Data The following equipment information shall be shown on the P&ID in relation to o the appropriate equipment symbol and in accordance with Section 4. Coolers. Plate & Frame. Positive Displacement Blowers. Positive Displacement. Screw. Aerators. Vaporizers and Heating Coils.4.2. Vertical Canned. Fans C Compressors Centrifugal.13. Double Pipe. Gear. Diesel Engines. Kilns al P Pumps Horizontal and Vertical Centrifugal.2: N 4.3 Compressors • Equipment/Item Number • Title/Service • Capacity (Flow and D/P) Process Industry Practices Page 15 of 31 . Furnaces. Mixers • Equipment/Item Number e- • Title/Service • Power Requirements pl • Materials of Construction 4.COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria Table 1: Equipment Classifications CLASS SUBJECT DESCRIPTION A Mixing Equipment Agitators. Reboilers. Boilers. ci Sump R Reactors er T Towers / Columns TK Tanks API atmospheric and low pressure U Miscellaneous Equipment m Filters. Screw.1 Agitators.3. Drums Co 4. Reciprocating.2 Blowers m • Equipment/Item Number Sa • Title/Service • Capacity (Flow and D/P) • Power Requirements • Materials of Construction 4. Accumulators.13. H2.5 Instrumentation and Controls 4. The symbol shall be placed outside the bubble at the upper right. (Reference ISA-5.1. Comment: Reference Appendix A-4 and Section 4.1 Symbols 4. 4.g.1. For PLCs integral to the DCS.1. the conventional diamond symbol shall be used in accordance with ISA-5. (Reference Appendix A-4) Comment: The tagging and numbering scheme described in the se following example is used on the example P&IDs contained in the Appendixes for illustrative purposes only.. CH4. the PLC symbol (diamond-in-a-box) shall be used.5.5. 4. For DCS-based interlocks.1. interlocks). For discrete.1 shall be followed for tagging and numbering of instrument and control devices. analysis o components like CO. Flow Controller) m 100 – Equipment (or P&ID) Number (optional) 01 – Loop Sequence Number. m Breaks in the instrument bubble may be used to accommodate longer tag numbers.5. cascades.5.7 Instrument function symbols.3 All measurement types shall be identified by an ISA symbol. shown in Appendix A-4. the diamond-in-a-box symbol shall be pl used in accordance with ISA-5.5.4 If necessary.. a descriptive text label may be added (e. Page 20 of 31 Process Industry Practices .2 The conventions established by ISA-5.1 and ISA-5.5 Interlock symbols shall be depicted as follows: e- a.PIP PIC001 COMPLETE REVISION Piping and Instrumentation Diagram Documentation Criteria April 2008 4. For PLC-based interlocks.5. This example tagging and numbering scheme is U only one example of tagging and numbering schemes described in this Practice.1.6 Directional arrows on instrumentation signal lines shall be used only if the function is not obvious (e. Co 4.1 and ISA-5. the DCS symbol (bubble-in-a-box) shall be used. 4. m c. or unique flow measurement devices like “Mass”). b.2.1.g.g.1 for additional details) 4. N 4.5. selectors. Sa d. hardware-based interlocks. The tagging structure is shown al in the following example: 01 FC 100 01 ci 01 – Plant Number (shall not appear on P&IDs or in a bubble) er FC – Function Identifier (e.1 Instrument and control symbols shall be shown in accordance with Appendix A-4.6 for additional information.1. shall be used to clarify the function of certain tagged instrument bubbles.5.5.2.. instead.2. er 4. (Reference Section 4. self-contained regulators.. pl 2.4.2.3. FL and FI shall be used where appropriate. Comment: If shown.2.3 Identifying Tags e- 1.6) m 5. ci 3. if any.2.5 Valve positioners shall not be shown unless necessary to clarify loop operation (e.1.3. valve positioners are normally included with the automated valve symbol and are not tagged.5.5. 50-100%) shall be shown for split range control Sa valves. Valves with different fail actions for loss of signal and for loss of motive power require an explanatory note. Comment: The preferred labeling is controller percentage output because it applies to both pneumatic and electronic systems.2 Automated Valves 1.g. For automated valves. Valve body sizes shall be shown for all automated valves if not line sized or otherwise implied.6) Comment: Using stem arrows as outlined in ISA-5.4 The ranges (e. For multi-port automated valves. 4.5.3. 4.1. tight shut-off requirements shall be identified by using the abbreviation “TSO. The symbols shown in Appendix A-4 shall be used for pressure and temperature regulators. Valve identifying tags with bubbles shall not be shown if the associated loop tag is readily apparent. U Comment: FO and FC shall not be used.5. Automated valve specifications or commodity codes shall not be m shown. (Reference Section 4. N 4..3.g.1 is not recommended.” (Reference Section 4.4.6) Comment: TSO defines the seat shut-off requirements for a new valve. are defined in other o unit operation documents. arrows shall be used to show fail position flow paths. Process Industry Practices Page 25 of 31 . if used with trip solenoids or pneumatic trip relays).COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria 3. Testing requirements.6) 4. (Reference Section 4. or valves located on a separate P&ID from m its controller. Automated valve fail actions shall be shown with text (FC/FO/FL/FI) in accordance with ISA-5. Note that multiple al arrows may be required. Co 6. se 2. 0-50%. An identifying tag with a bubble shall be shown for split range valves.4. The “S” prefix shall not be used to distinguish a unique interlock label.5.6.6. I-101.5.6. 4.6.6 If Safety Instrumented Systems (SIS) are distinguished from other interlock systems. The format of the reference shall be determined by the owner. The reference shall be located within the interior of the N symbol.5. The scheme I-100. logic and loop diagrams. input/output tables.PIP PIC001 COMPLETE REVISION Piping and Instrumentation Diagram Documentation Criteria April 2008 4. pl 4.4 Binary logic gates. SI-201. A variety of hardware can be used for implementation (e.7 Each interlock shall be uniquely labeled. PLC.3 Logic functions or interlocks shall be shown with the proper symbols in accordance with Section 4. 4.5.6. m 4.5. DCS. e- 4. binary logic diagrams. Alarms can be similarly designed in a variety of ways. se fault-tolerant Safety Interlock Systems).g. truth tables). 4.. and operating procedures.5.119 er and ISA -84. redundant. truth table. Comment: Interlocks can be designed for a variety of functions.6.5.1 and the Appendixes. or descriptive narratives shall not be shown.1. relays. including P&IDs. alarm summaries. along with individual owner interpretations of the requirements of OSHA 1910. ci Because of this variety. using a serial (not parallel) m tagging scheme.1 Interlocks shall be shown only symbolically on the P&ID.5. from DCS software and can be shown on a variety of facility al documents. many documentation aspects of interlock and alarm system design should be defined by m the owner.9 Classifications or Safety Integrity Levels (SIL) shall not be shown for interlocks. 4.8 The type of logic solver hardware or level of redundancy shall not be shown except through the normal use of ISA symbols and the input and output signals described in Section 4.6. over serial links. SI-100 should not be used. U Alarms come from hardware. descriptive narratives. or program.g. Sa Comment: A valid tagging scheme shall be I-100.10 All operator-initiated interlock trip and reset hand switches shall be shown.5. narrative.5.5. Descriptive text or a note reference can be placed outside the symbol.5 All logic function and interlock symbols shall contain an identification o that provides reference to a unique logic diagram. 4. SI-200.2 The functional definition shall be shown on auxiliary documents (e.6.01.6.6.5. from simple process sequences to complex safety shutdown systems. Page 28 of 31 Process Industry Practices .5.. the preferred method shall be to add an “S” prefix to the unique interlock identification. Co 4.6 Interlocks and Alarms 4. R for recorder) to be included in every DCS point tag. se 4.5.g. er 4.g.5. PLCs. the functional tag (e.15 Software-based diagnostic alarms shall be shown only if safety or operationally related (e.. H. PAH) shall be shown inside the bubble.g.5. e- 4.1 abbreviations shall be used for both trip and alarm functions (e.5.g. tank gauging systems). It is not the intent of this section to define which DCS points to show for every supplier of a DCS or each type of system that can communicate with a DCS via a software link (e..6... N 4. the complete functional tag o and alarm level (e.5.6. HH) shall be placed at the upper right outside the bubble. Comment: Unnecessary clutter can be avoided by use of a table or reference note if large numbers of bypasses are necessary.g.20 Standard ISA-5. vibration monitoring systems. al Comment: Measurement out-of-range alarms are an example of software diagnostic alarms not generally shown. 4.13 All alarms that require engineering or other review and approval based on safety or operability shall be shown.6. but alarm trip points or settings shall not be shown. anti-surge control systems. PAH).g.17 For alarms based on analog measurements. I for indicate.18 High alarms (e. LL) shall be placed at the lower right Co outside the bubble. ci 4.g.5..5.6. L...19 For discrete alarm points (on/off signals). Safety Instrumented Systems. LSHH and LAHH). including all individual initiator and system bypass switches. and low alarms (e..g. It is not necessary for implied functions Sa (e.16 Required alarms shall be shown with tag and level (e. 4.7 DCS Points 4.7. analyzer data highways.6. m Comment: It is not necessary for every point configured in a DCS to be shown.g.5. or if the point is essential to understanding the functional operation of the process controls.. m 4. defined in safety reviews).12 All hardwired alarms shall be shown.1 A DCS point shall be shown if operations manipulates the process with it pl or receives information from it. U 4.6.5.6. 4.6.14 Hardware-based diagnostic alarms shall be shown.6.5.5.6.5. Comment: The alarm modifier (A) should not be shown. all bypass hand switches for SIS interlocks shall be shown.11 If used.COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria 4. Process Industry Practices Page 29 of 31 . PI) m shall be shown inside the bubble and the alarm levels shall be shown outside the bubble. full-size (22 inches x 34 inches) P&ID. The symbols and text are shown the same size as would be utilized for a standard. organized into cover sheets. al Comment: The cover sheets and P&IDs are drawn as standard. abbreviations and other identifiers. Appendix B contains the same data as Appendix A. but reduced to standard 8-1/2 inch x 11-inch pages for electronic distribution ci purposes.PIP PIC001 COMPLETE REVISION Piping and Instrumentation Diagram Documentation Criteria April 2008 Appendixes Summary The Appendixes of this Practice contain tables of commonly used symbols. typical details. It is recommended that the cover sheets and P&IDs be printed on 11-inch x 17-inch pages. Appendix A contains symbols and text grouped by function. Cover sheets are also se commonly referred to as lead sheets or legend sheets. full-size (22 inches x 34 inches) P&IDs. and example P&IDs. er m m Co o N e- pl m Sa . Appendix C contains example P&IDs that illustrate the text and utilize the symbols and legends on U the cover sheets. Line Data Identification Co 2. Jacketed Pressure Vessels m m A-3 Piping Tables and Symbols 1. General Instrument Symbols Sa 3.COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria Appendix A – Tables and Symbols A-1 Format Tables and Symbols 1. Storage Sphere and Furnace 9. Abbreviations 2. Miscellaneous Vessel Details 10. Line Service Codes 3. Miscellaneous Symbols A-2 Equipment Tables and Symbols se 1. Pumps 2. Self-Actuated Devices 8. Piping Fittings 7. Primary Element Symbols (Flow) 6. Control Valve Actuator Symbols 7. Notes pl A-4 Instruments & Controls Tables and Symbols m 1. Instrument Function Symbols 4. Piping Line Symbols 4. Instrument Identification Letters 2. Compressors and Blowers U 3. Miscellaneous Exchangers 6. Miscellaneous Instrument Symbols Process Industry Practices Page A-1 . Piping Specialty Items N 6. Drivers and Agitator/Mixer 4. Instrument Line Symbols 5. Valve Symbols o 5. TEMA Type Exchangers al 5. Storage Tanks ci 7. Connectors and Tie-In Symbol e- 8. Storage Tanks er 8. Drain Connectors 9. Sa m pl e- N o Co m m er ci al U se . Sa m pl e- N o Co m m er ci al U se . Sa m pl e- N o Co m m er ci al U se . Sa m pl e- N o Co m m er ci al U se . Sa m pl e- N o Co m m er ci al U se . Sa m pl e- N o Co m m er ci al U se . Sa m pl e- N o Co m m er ci al U se . Sa m pl e- N o Co m m er ci al U se . COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria Appendix B – Cover Sheets B-1: Symbols and Nomenclature – Typical Piping se B-2: Symbols and Nomenclature – Typical Instrumentation B-3: Symbols and Nomenclature – Typical Equipment U B-4: Typical Details with Implied Components al Note: The example cover sheets in this Appendix are not all-inclusive of the potential uses of implied ci components. sampling systems. such as the level bridles shown. m Co o N e- pl m Sa Process Industry Practices Page B-1 . analyzer systems for example. The implied component examples shown do not cover all actual occurrences or design possibilities for instrument assemblies. The user must er ensure that the cover sheets capture their piping/instrument requirements for their use of implied components. There are many more systems that may require a cover sheet explanation m to show the implied components – pump seals. as well as other types of level systems than those shown here. Sa m pl e- N o Co m m er ci al U se . Sa m pl e- N o Co m m er ci al U se . COMPLETE REVISION PIP PIC001 April 2008 Piping and Instrumentation Diagram Documentation Criteria Appendix C – Example P&IDs C-1: Example P&ID 1 C-2: Example P&ID 2 se C-3: Example Utility P&ID U Note: The examples shown on the sample P&IDs in this Appendix are not all-inclusive of the potential uses of implied components. There are many more systems that may require a cover sheet explanation to show the implied components – pump ci seals. sampling systems. analyzer systems for example. er m m Co o N e- pl m Sa Process Industry Practices Page C-1 . The user must ensure that the cover sheets capture their al piping/instrument requirements for their use of implied components. as well as other types of level systems than those shown here. Sa m pl e- N o Co m m er ci al U se .