PIP PNSM0001 - Piping Line Class Designator System

TECHNICAL CORRECTIONMay 2001

Process Industry PracticesPiping

PIP PNSM0001Piping Line Class Designator System

PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES

In an effort to minimize the cost of process industry facilities, this Practice hasbeen prepared from the technical requirements in the existing standards of majorindustrial users, contractors, or standards organizations. By harmonizing thesetechnical requirements into a single set of Practices, administrative, application, andengineering costs to both the purchaser and the manufacturer should be reduced. Whilethis Practice is expected to incorporate the majority of requirements of most users,individual applications may involve requirements that will be appended to and takeprecedence over this Practice. Determinations concerning fitness for purpose andparticular matters or application of the Practice to particular project or engineeringsituations should not be made solely on information contained in these materials. Theuse of trade names from time to time should not be viewed as an expression ofpreference but rather recognized as normal usage in the trade. Other brands having thesame specifications are equally correct and may be substituted for those named. AllPractices or guidelines are intended to be consistent with applicable laws andregulations including OSHA requirements. To the extent these Practices or guidelinesshould conflict with OSHA or other applicable laws or regulations, such laws orregulations must be followed. Consult an appropriate professional before applying oracting on any material contained in or suggested by the Practice.

This Practice is subject to revision at any time by the responsible Function Teamand will be reviewed every 5 years. This Practice will be revised, reaffirmed, orwithdrawn. Information on whether this Practice has been revised may be found athttp://www.pip.org.

© 2001 Process Industry Practices (PIP), Construction Industry Institute,The University of Texas at Austin, 3208 Red River Street, Suite 300, Austin,Texas 78705. PIP member companies and subscribers may copy this Practicefor their internal use. Changes, overlays, addenda, or modifications of anykind are not permitted within any PIP Practice without the express writtenauthorization of PIP.

PRINTING HISTORY

February 1997 Issued November 1999 RevisionFebruary 1999 Complete Revision May 2001 Technical Correction

Not printed with State funds

TECHNICAL CORRECTIONMay 2001

Process Industry Practices Page 1 of 11

Process Industry PracticesPiping

PIP PNSM0001Piping Line Class Designator System

Table of Contents

1. Introduction.................................21.1 Purpose ............................................. 21.2 Scope................................................. 2

2. General ........................................2

3. Field Definitions and Example ..23.1 First Field ........................................... 23.2 Second Field...................................... 23.3 Third Field.......................................... 23.4 Fourth Field........................................ 33.5 Fifth Field ........................................... 33.6 Example............................................. 3

4. Notes ...........................................3

5. Cover Sheet.................................3

6. Revisions, Alterations, andAdditions .....................................4

AppendicesAppendix A - Cover Sheet/Addendum FormAppendix B - Sample Cover SheetAppendix C - Sample Addendum

PIP PNSM0001 TECHNICAL CORRECTIONPiping Line Class Designator System May 2001

Page 2 of 11 Process Industry Practices

1. Introduction

1.1 PurposeThe purpose of this Practice is to provide a uniform system for identifying piping lineclasses.

1.2 ScopeThis Practice establishes the system used for identifying piping line classes.

2. General

The base piping line class designator system consists of five alternating alphanumeric fieldscontaining one or two characters each (maximum of eight characters). Each field describesvarious features of the piping line class.

At the user’s option, revisions, alterations, and/or additions can be made to a base line classspecification by adding an alphabetic character (maximum of two, making for a maximum of tencharacters total to define a line) after the fifth field designator to indicate that changes have beenmade to the base PIP document. The addendum alphabetic character(s) should be added directlyto the base line class designator number as a suffix and without a delimiter.

See Section 6 for additional information on revisions, alterations, and/or additions.

3. Field Definitions and Example

3.1 First Field3.1.1 The first field defines the pressure rating and is numeric in character.

3.1.2 The pressure rating field consists of one or two numeric characters as shown inTable 1.

3.2 Second Field3.2.1 The second field defines the nominal pipe material and is alphabetic in character.

3.2.2 The nominal pipe material field consists of two alphabetic characters as shownin Table 2.

3.3 Third Field3.3.1 The third field defines the corrosion/erosion allowance and is numeric in

character.

3.3.2 The corrosion/erosion allowance field consists of one numeric character asshown in Table 3.

TECHNICAL CORRECTION PIP PNSM0001May 2001 Piping Line Class Designator System


3.4 Fourth Field3.4.1 The fourth field defines the joint construction/construction type and is alphabetic

in character.

3.4.2 The joint construction/construction type field consists of one alphabeticcharacter as shown in Table 4.

3.5 Fifth Field3.5.1 The fifth field defines a sequential number for numbering variations of the line

class specification and is numeric in character.

3.5.2 The sequential number field consists of two numeric characters. The field rangesfrom numbers 01 through 99, with numbers 01 through 79 being reserved for useby PIP and numbers 80 through 99 being reserved for use by owner.

3.6 ExampleAn example of a complete piping line class designator is 3CS1S01. This designatormeans:

First Field: 3 = ASME Pressure Class 300

Second Field: CS = Carbon Steel Base Material Piping System

Third Field: 1 = Nominal Corrosion Allowance in multiples of 1/16"

Fourth Field: S = Socketweld Small Bore Construction and Buttweld andFlanged Large Bore Construction

Fifth Field: 01 = Sequence Number (first in this piping material/ pressureclass series)

4. Notes

PIP Piping utilizes a set of standard notes and note numbers on line class specifications toprovide the user with additional information (i.e., guidance, caution, clarification, etc.).Occasionally, a user may find the need to add company- or project-specific notes to a line classspecification. This can be accomplished through the use of an Addendum form.

Note: Numbers 01 through 699 are reserved for PIP use. Numbers 700 through 999 arereserved for users.

5. Cover Sheet

5.1 While many users plan to use PIP line class specifications “as is,” some users will find ithelpful and/or necessary to attach a “cover sheet” to the document and communicate theextent to which the line class specification applies within the user’s company and/or onthe user’s specific project. In cases where no revisions, alterations, or additions are madeto the line class specification, the dual-purpose cover sheet/addendum form should beused to convey the user’s application intentions. The cover sheet/addendum form islocated in Appendix A.



5.2 When the form is used as a cover sheet, the user must complete the fields for PIP PipingPractice number, piping line class material specification number, and scope. The usershould enter the words “No Change” in Sections 2 through 10. The addendum numbershould not be filled in when the form is used solely as a cover sheet. An example of howthe form might be used as a cover sheet is shown in Appendix B.

6. Revisions, Alterations, and Additions

6.1 Users of PIP line class specifications may have company, location, or projectrequirements that require revisions, alterations, and/or additions to the base PIP line classspecification(s). To accommodate such cases, the dual-purpose cover sheet/addendumform is to be used.

6.1 To use the cover sheet/addendum form for revisions, alterations, and/or additions to thebase line class specification, fill in the PIP Piping Practice number, piping line classmaterial specification number, and addendum number alphabetic character(s). Within theapplicable section (i.e., Scope, Design, Materials, etc.), fill in the necessary informationto detail the deviation(s) being made to the base line class specification. Users maycreate more than one addendum for a base line class specification. An example of howthe cover sheet/addendum form might be utilized as an addendum is shown inAppendix C.



Table 1

Pressure Rating

Symbol Nominal Pressure Rating or ClassASME B16.5 or B16.47 Flange Class

1 1503 3004 4006 6009 90015 150025 2500

ASME 16.1 Cast Iron Flange Class12 12513 250

80 – 99 Reserved for Owner-Specific Rating Designations



Table 2

Line Material

Symbol Material

Aluminum Alloys

AA Aluminum Alloy 1100, H112 temperAB Aluminum Alloy 3003, H112 temperAC Aluminum Alloy 5052, H32 temperAD Aluminum Alloy 5454, H112 temperAE Aluminum Alloy 6061, T6 temperAF Aluminum Alloy 6063, T1 temperAG Aluminum Alloy 6063, T6 temper

Brass, Bronze, Copper, and Copper Alloys

BA Aluminum-BronzeBB Red BrassBC Copper, deoxidized pureBD 90-10 Cu-NiBE 80-20 Cu-NiBF 70-30 Cu-NiBG Silicon-BronzeBT Cast Leaded Tin Bronze

Carbon and Low-Alloy Steels

CA Impact Tested Carbon SteelCB Killed Carbon SteelCC Low Carbon SteelCG Galvanized Carbon SteelCH Killed Carbon Steel, PWHT for ProcessCJ 1-1/4 Cr - 1/2 Mo Alloy SteelCK 2-1/4 Cr - 1 Mo Alloy SteelCL 5 Cr - 1/2 Mo Alloy SteelCM 9 Cr - 1 Mo Alloy SteelCN 12 Cr Alloy SteelCS Carbon Steel

Iron, Ductile, Malleable, or Cast

DA Ductile Iron, AusteniticDC Cast Iron, GreyDF Ductile Iron, FerriticDM Malleable Iron



Table 2 continued

Symbol Material

Fiberglass Reinforced Plastics (FRPs) and Resins

FC Carbon Fiber Reinforced FuranFE Glass Fiber Reinforced EpoxyFF Glass Fiber Reinforced FuranFP Glass Fiber Reinforced PolyesterFV Glass Fiber Reinforced Vinyl EsterNon-Metals/Non-Plastics

KA ClayKB ConcreteKC GlassKD Ceramic

Lined or Internally Coated Steel/Iron/etc.

LA PFA (Perfluoro Alkoxyalkane copolymer)-lined Carbon SteelLB Cement-lined Ductile IronLC Cement-lined Carbon SteelLD PTFE (Polytetrafluoroethylene)-lined Ductile IronLE Epoxy-lined Carbon SteelLF FEP (Perfluoro Ethylene-Propylene copolymer)-lined Carbon SteelLG Glass-lined Carbon SteelLH ECTFE (Ethylene-Chlortrifluoroethylene)-lined Carbon SteelLJ PFA (Perfluoro Alkoxyalkane copolymer)-lined Ductile IronLK PVDF (Polyvinylidene Fluoride)-lined Carbon SteelLP PP (Polypropylene)-lined Carbon SteelLR Rubber-lined Carbon SteelLS PVDC (Polyvinylidene Chloride)-lined Carbon SteelLT PTFE (Polytetrafluoroethylene)-lined Carbon SteelLV PVC (Polyvinyl Chloride)-lined Carbon Steel

Misc. Metals, not covered elsewhere

MG GoldML LeadMS SilverMT TantalumMY Zirconium + CbMZ Zirconium



Table 2 continued

Symbol Material

Nickel and Nickel Alloys

NA Alloy C-2000 UNS N06200NB Alloy B2 UNS N10665NC Alloy C276 UNS N10276ND Alloy B UNS N10001NE Alloy C4 UNS N06455NF Alloy C22 UNS N06022NG Alloy G UNS N06007NH Alloy B3 UNS N10675NJ Alloy G3 UNS N06985NK Nickel 200 UNS N02200NL Nickel 201 UNS N02201NM Alloy 400 UNS N04400NN Alloy C30 UNS N06030NP Alloy 600 UNS N06600NQ Alloy 625 UNS N06625NR Alloy 800 UNS N08800NS Alloy 825 UNS N08825NT Alloy 20 UNS N08020NU Alloy 20Cb-3 UNS N08020NV Alloy 20-Mod UNS N08320NW Alloy 25-6 Moly UNS N08926NX Alloy AL-6XN UNS N08367

Plastics (other than FRPs)

PA ABS (Acrylonitrile-butadiene styrene)PB PB (Polybutylene)PC CAB (Cellulous acetate-butyrate)PD HDPE (High Density Polyethylene)PE LDPE (Low Density Polyethylene)PF PFA (Perfluoro Alkoxyalkane copolymer)PG FEP (Perfluoro Ethylene-Propylene copolymer)PK PVDF (Polyvinylidene Fluoride)PP PP (Polypropylene)PS PVDC (Polyvinylidene Chloride)PT PTFE (Polytetrafluoroethylene)PU CPVC (Chlorinated Polyvinyl Chloride)PV PVC (Polyvinyl Chloride)



Table 2 continued

Symbol Material

Stainless (High-Alloy) Steels

SA Type 304/304L SSSC Type 304H SSSD Type 316/316L SSSF Type 316H SSSG Type 317 SSSH Type 317L SSSJ Type 321 SSSK Type 321H SSSL Type 347 SSSM Type 347H SSSN Type 904L SS UNS N08904SP 2205 Duplex SS UNS S31803SR Type 304 SSSS Type 304L SSST Type 316 SSSU Type 316L SSSV 254 SMO UNS S31254

Titanium and Titanium Alloys

TB Titanium Grade 2TC Titanium Grade 3TD Titanium Grade 7TE Titanium Grade 12

Reserved for Future Use

E_, G_, H_J_, Q_, R_U_, V_

Not Used

I_, O_

Reserved for Owner-Specific Designators

W_X_Y_Z_



Table 3

Corrosion/Erosion Allowance

Symbol Allowance (Nominal)0 zero corrosion allowance1 0.063 inch (1/16 inch)2 0.125 inch (1/8 inch)3 0.188 inch (3/16 inch)4 0.250 inch (1/4 inch)9 Reserved for Owner-Specific Designator

Note: The corrosion/erosion allowance numbers are in multiples of 1/16th of an inch. The valuesgiven in the table are nominal values. Unless otherwise specified, minimum values that are 80% ofthe nominal specified values are acceptable.



Table 4

Joint Construction/Construction Type

Symbol Description

A Adhesive or Wrapped RTR (Plastic Pipe Joints) and FlangedB Buttweld Small Bore Construction and Buttweld and Flanged Large Bore ConstructionC Cement, Solvent (Plastic Pipe Joints) and FlangedDEF Flanged OnlyG Grooved Large Bore Construction and Threaded Small Bore ConstructionH Heat Fusion (Plastic Pipe Joints) and FlangedI (Not Used)J Jacketed ConstructionKL Compression Fitting Small Bore Construction and Buttweld and Flanged Large Bore

ConstructionM Mechanical JointsNO (Not Used)P Push On (Bell and Spigot)QRS Socketweld Small Bore Construction and Buttweld and Flanged Large Bore ConstructionT Threaded Small Bore Construction and Buttweld and Flanged Large Bore ConstructionUV Reserved for Owner-Specific DesignatorW Reserved for Owner-Specific DesignatorX Reserved for Owner-Specific DesignatorY Reserved for Owner-Specific DesignatorZ Reserved for Owner-Specific Designator

Appendix A

Cover Sheet/Addendum Form


Page A-1 Process Industry Practices

USER COMPANY LOGO/HEADER – Optional

User Specification Number – Optional

Date: mm/yyCover Sheet / Addendum for Process Industry Practice PNXXXXXXXX

Piping Line Class Material Specification XXXXXXXAddendum No.: X

Job No.: X – Optional

Additions, Deletions, or Modifications listed below form part of this specification:

1. Scope(e.g., fluid service, hazard class, guidance on application, document classification)

2. Design(e.g., pressure/temperature limits, branch table)

3. Materials(e.g., components: pipe, nipples, fittings, flanges, gaskets, bolting)

4. Valves

5. Fabrication, Assembly, and Erection

6. Inspection, Examination, and Testing

7. Cleaning

8. Other Modifications(e.g., other additions, deletions, and/or modifications)

9. Notes(e.g., owner-specific notes numbered 700-999)

10. Related Documents and References

Appendix BSample Cover Sheet


Page B-1 Process Industry Practices

XYZ Petrochemical Company, Inc.Engineering Standards Program

Cover Sheet for Process Industry Practice PN01CS1S01Piping Line Class Material Specification 1CS1S01


1. Scope1.1 Process Industry Practice (PIP) PN01CS1S01 is accepted as company piping line class

specification 1CS1S01 without additions, deletions, or modifications.

1.2 1CS1S01 replaces existing Company specification 15480.C101.

1.3 This document is classified an Engineering Standard. Deviations must comply withCompany Administration Policy 6000-260, “Engineering Standards.”

2. Design2.1 No change

3. Materials3.1 No change

4. Valves4.1 No change

5. Fabrication, Assembly, and Erection5.1 No change

6. Inspection, Examination, and Testing6.1 No change

7. Cleaning7.1 No change

8. Other Modifications8.1 No change

9. Notes9.1 No change

10. Related Documents and References10.1 No change

Appendix CSample Addendum


Page C-1 Process Industry Practices

ABC Chemical Co. Engineering StandardsPipingOctober 1998

ES PN01CS1S01AAddendum for Process Industry Practice PN01CS1S01

Piping Line Class Material Specification 1CS1S01Addendum No.: A


1. Scope1.1 Process Industry Practice (PIP) PN01CS1S01 is accepted as Company piping line class

specification ES PN01CS1S01A with modifications as indicated below.

1.2 This specification covers carbon steel piping for general non-corrosive gas and liquidprocess service.

1.3 This specification shall not be used in sulfide environments or in other services subject toenvironmental cracking.

1.4 ES PN01CS1S01A replaces existing Company specification 15480.C101.

1.5 This document is classified an Engineering Standard. Deviations must comply withCompany Administrative Policy 6000-260, “Engineering Standards.”

2. Design2.1 No change

3. Materials3.1 Threaded connections, NPS 1/2 – 2, for instrument connections are to be SCH 80 with

PTFE emulsion sealant. PTFE tape is not permitted.

3.2 Use NPS 3/4 Class 3000 combination socketweld and threaded bossets for hydrostatictest connections.

3.3 ASTM A53 Gr-B ERW is an acceptable alternate for sizes NPS 16 – 24.

4. Valves4.1 Add Company Index 211 Butterfly Valve - NPS 3 – 14, Wafer CS body 150 RF, NPS 8

and > GEAR (see Note 700, 701).

4.2 Delete PIP Valve Code BF1CS70.

4.3 Add Company Index 22A Ball - NPS 1/4 – 2, Brass body 600 WOG/125 WSP, F-NPT.

4.4 Delete PIP Valve Code BA1CS06.


Process Industry Practices Page C-2

5. Fabrication, Assembly, and Erection5.1 No change

6. Inspection, Examination, and Testing6.1 See PIP PNSC0001 for the fabrication of metallic pipe.

6.2 See PIP PNE00012 for the piping examination and leak testing guide.

6.3 See PIP PNSC0021 for specification for leak test of piping.

7. Cleaning7.1 See Company Specification 15480.0500 Piping, General Cleaning.

8. Other Modifications8.1 No change

9. Notes9.1 Note 700: These valves have no flanges but are installed between line flanges with extra

length bolts.

9.2 Note 701: Butterfly valves NPS 6 and smaller w/handle; NPS 8 and larger with gearoperator.

10. Related Documents and References10.1 See ES PNSM0001A, Line Class Designator System, for information on the system used

for identifying piping line classes and revisions/alterations/additions.

10.2 Attachment: PIP Piping Line Class Material Specification 1CS1S01.