º to 150º F In accordance with this specification and

Transcription

1 SPEC /0/18 1/ PURPOSE This specification describes the minimum requirements gland water piping systems operating at or below 400 PSIG. Gland water systems are to be constructed either of Carbon Steel or Stainless Steel. Mixing of piping materials is not permitted. 2.0 AND FITTINGS Design Condition Operating Conditions Design Fabrication Installation Approvals Pipe º F º to 10º F In accordance with this specification and SPEC-3002 Piping General Requirements SPEC-3003 Welding Process Requirements SPEC Pressure Piping and Vessels Quality Requirements CSA B1 Boiler, Pressure Vessel and Pressure Piping Code ASME B31.1 Power Piping Piping systems subject to the approval of TSSA, Boilers and Pressure Vessels Safety Division. Carbon Steel: Schedule 80 per ASME B36.10, ASTM A3, Gr. B, ERW or Seamless, T&C ends. Stainless Steel: Schedule 80S per ASME B36.10, ASTM A312 Gr. TP316L, ERW or Seamless, T&C ends. 2" to 10": Carbon Steel: Schedule 40 per ASME B36.10, ASTM A3, Gr. B, ERW or Seamless, beveled ends. Stainless Steel: Schedule 40S per ASME B36.10, ASTM A312 Gr. TP316L, ERW or Seamless, beveled ends. Tubing Carbon Steel: Cold drawn seamless carbon steel per ASTM A179, hardness 72 HRB max., plain ends, wall thickness to meet minimum pressure rating of 200 PSIG. Stainless Steel: Cold drawn seamless stainless steel per ASTM A269, hardness 90 HRB max., plain ends, wall thickness to meet minimum pressure rating of 200 PSIG.

2 SPEC /0/18 2/10 Fittings Carbon Steel: Class 3000 per ASME B16.11, threaded, forged carbon steel per ASTM A10, threaded ends per ASME B Stainless Steel: Class 3000 per ASME B16.11, threaded, forged stainless steel per ASTM A182 Gr. F316L, threaded ends per ASME B " to 10": Carbon Steel: Schedule 40 per ASME B16.9, wrought carbon steel per ASTM A234 Gr. WPB, butt weld. Flanges Stainless Steel: Schedule 40S per ASME B16.9, wrought stainless steel per ASTM A403 Gr. WP316L seamless or welded fitting, butt weld. Carbon Steel: Class 300 per ASME B16., threaded type, raised face, forged carbon steel per ASTM A10. Stainless Steel : Class 300 per ASME, threaded type, raised face, B16., forged stainless steel per ASTM A182 Gr. F316L. 2" to 10": Carbon Steel: Class 300 per ASME B16., slip-on welding neck type, raised face, forged carbon steel per ASTM A10. Stainless Steel: Class 300 per ASME B16., slip-on or welding neck type, raised face, forged stainless steel per ASTM A182 Gr. F316L. Branch Connections Note : Bore of welding neck flange to suit pipe ID. Make branch connections per Table 1. Attach to run pipe by full penetration welds. Threaded and socket weld half couplings, Class 3000 per ASME B16.11, forged carbon steel ASTM A10. Thredolet and sockolet, Class 3000 per ASME B16.11 and MSS SP-97, forged carbon steel ASTM A10. Flanged Joint Gaskets Threaded Joint Sealant Weldolet, Extra strong per ASME B16.11 and MSS SP-97, forged carbon steel ASTM A10. 1/16" thick flat ring type, inside bolts, non-asbestos, synthetic fibre, nitrile binder, gasket dope not permitted. ASTM F37 sealability 0.3 ml/hr. or better Dimensions per ASME B Durlon 800, Klinger SIL C-4401, or Vale approved equal. Teflon dope for pipe 1 NPS and less, Teflon tape for pipe greater than 1 NPS.

3 SPEC /0/18 3/10 Flange Bolting Studs/Bolts Carbon Steel: ASTM A193 Gr. B7, UNC threads, Class 2A fit, per ASME B1.1 and ASME B Stainless Steel: ASTM A193 Gr. B8M UNC threads, Class 2A fit, per ASME B1.1 and ASME B Nuts Carbon Steel: Heavy series hex, ASTM A194 Gr. 2H, Class 2B fits, per ASME B1.1 and ASME B Stainless Steel: Heavy series hex, ASTM A194 Gr. 8MA, Class 2B fits, per ASME B1.1 and ASME B Welded Joints Carbon Steel: Essential variables to be in accordance with SPEC-3003 for the welding procedure (WP) identified. All sizes: WP1 Stainless Steel: Essential variables to be in accordance with SPEC-3003 for the welding procedure (WP) identified. All sizes: WP4 Tube Fittings Unions Minimum of 100 PSIG rated compression mechanical fittings, ferrule type (flareless). Carbon Steel: Class 3000 per ASME B16.11, threaded, forged carbon steel per ASTM A10, steel to brass seats, ground joint, MSS SP83, threaded ends per ASME B Stainless Steel: Do not use Use Flanged Connections

4 SPEC /0/18 4/10 Ball Valves Carbon Steel: Class 800 minimum rating, threaded, carbon steel body, 316SS trim, full port opening, PTFE seats & seals, threaded ends per ASME B Valves to be lockable. Stainless Steel: Class 800 minimum 800 rating, threaded, stainless steel body, ball and stem, full port opening, PTFE seats and seals, threaded ends per ASME B Valves to be lockable. Quarter turn valves 6 and over must be equipped with gear operators Butterfly Valves 2" to 10": Carbon Steel: Class 300, carbon steel body, 316SS disc, 17-4PH shaft. Flanges per ASME B16.. Face to face dimensions in accordance with MSS SP-68. Valve internals to be rated above 400 PSIG in the closed position. Valves to be lockable. Stainless Steel: Class 300, forged or cast stainless steel body, ASTM A182 F316 or A31 CF8M, 316 stainless steel shaft and disc. Face to face dimensions in accordance with MSS SP-68. Flanged ends per ASME B16.. Valve internals to be rated above 400 PSIG in the closed position. Valves to be lockable. Quarter turn valves 6 and over must be equipped with gear operators Gate Valves 1 ½ & Below: Carbon Steel: Class 800, forged steel body per ASTM A10, 13% chrome trim, OS&Y, threaded to ASME B Valves to be lockable. Stainless Steel: Class 800, Forged stainless steel body per ASTM A182 F316, OS&Y, threaded to ASME B Valves to be lockable. 2 to 10 : Carbon Steel: Class 300, forged or cast steel body per ASTM A10 or A216, 13% chrome trim, OS&Y. Flanged ends per ASME B16.. Valves to be lockable. Stainless Steel: Class 300, forged or cast stainless steel to A182 F316 or A31 CF8M, OS&Y. Flanged ends per ASME B16.. Valves to be lockable.

5 SPEC /0/18 /10 Globe Valves 1 ½ & Below: Carbon Steel: Class 800, forged carbon steel body per ASTM A10, 13% chrome trim, OS&Y. Threaded to ASME B Valves to be lockable. Stainless Steel: Class 800, forged or cast stainless steel body per ASTM A182 F316 or A31 CF8M, OS&Y. Threaded to ASME B Valves to be lockable. 2 to 10 : Carbon Steel: Class 300, cast steel body to A216, 13% chrome trim, OS&Y. Flanged ends per ASME B16.. Valves to be lockable. Check Valves Stainless Steel: Class 300, cast stainless steel per ASTM A31 CF8M, OS&Y. Flanged ends per ASME B16.. Valves to be lockable. Carbon Steel: Class 800, forged carbon steel body per ASTM A10, 316 stainless trim. Threaded to ASME B Stainless Steel: Class 800, forged stainless steel body per ASTM A182 F316. Threaded to ASME B " to 10": Carbon Steel: Class 300, forged or cast carbon steel body per ASTM A10 or ASTM A216, 316 stainless trim. Flanged ends per ASME B16.. Stainless Steel: Class 300, forged or cast stainless steel body per ASTM A182 F316 or A31 CF8M. Flanged ends per ASME B16.. Safety Relief Valves Pressure Reducing Valves Pressure Gauges Note: Engineer to select style (I.e. Swing, Ball, etc) Selection by the Engineer Selection by the Engineer 4 diameter, liquid filled, PSIG range, ½ NPT connection, stainless steel case.

6 SPEC /0/18 6/10 Instrumentation Isolating Valves ½ Carbon Steel Class 800, minimum rating carbon steel body per ASTM A10, 316SS trim, full port opening. PTFE seats and seals. Threaded ends per ASME B Valves to be lockable. ½ Stainless Steel: Class 800 minimum rating stainless steel ball valve ASTM A31, Gr. CF8M, 316SS ball and stem, full port opening, reinforced teflon seats and stem seals, lever operated, screwed to ASME B Valves to be lockable. 3.0 TESTING Testing must meet the requirements of ASME B31.1, and PROC (hydrostatic testing) or SPEC-3048 (pneumatic testing only at the discretion of the Engineer) and specific instructions in the scope of work. Test Pressure Duration Additional Requirements 600 PSIG Per Code Isolate or remove necessary items for hydrostatic test. Do not pressure test butterfly valves in closed position. 4.0 EXAMINATION AND INSPECTION Examination and inspection must meet the requirements of ASME B31.1 and specific instructions in the scope of work. 100% visual examination for all sizes and thicknesses is required..0 CLASSIFICATION AND IDENTIFICATION The piping system shall be painted (classification) and labeled (identification) in accordance with SPEC Do not paint stainless steel piping systems.

7 SPEC /0/18 7/ TABLE 1 BRANCH CONNECTIONS Inches B R A N C H / Inches /4 1/2 HEADER 1 = Equal Tee 2 = Reducing Tee or Equal Tee with Reducer 3 = Threaded Half Coupling 4 = Weldolet

8 SPEC /0/18 8/ REFERENCE DOCUMENTATION The following documents are related to or have instructions and procedures applicable to it. They shall be used in their most recent revision. SPEC-3001 SPEC-3002 SPEC-3003 SPEC-3048 SPEC PROC CSA B1 CSA Z180.1 ASTM A3 ASTM A10 ASTM A106 ASTM A139 ASTM A179 ASTM A182 ASTM A193 ASTM A194 ASTM A234 ASTM A307 ASTM A312 ASTM A31 ASTM A403 ASTM A36 ASTM A63 ASTM B61 ASTM B62 Identification and Classification Piping General Requirements Welding Process Requirements Requirements for Pneumatic Testing of Piping Systems Pressure Piping and Vessels - Quality Requirements Hydrostatic Testing Boiler, Pressure Vessel and Pressure Piping Code Compressed Breathing Air and Systems Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc- Coated, Welded and Seamless Standard Specification for Carbon Steel Forgings for Piping Applications Standard Specification for Seamless Carbon Steel Pipe for High Temperature Service Standard Specification for Arc Welded Steel Pipe Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat- Exchanger and Condenser Tubes Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings and Valves and Parts for High Temperature Service Standard Specification for Alloy Steel and Stainless Steel Bolting for H Temperature Service or High Pressure Service Standard Specification for Carbon Steel and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service or Both Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service Specification for Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength Standard Specification for Seamless, Welded and Heavily Cold Worked Austenitic Stainless Steel Pipes Standard Specification for Castings, Austenitic, for Pressure Containing Parts Standard Specification for Wrought Austenitic Stainless Piping and Fittings Standard Specification for Ductile Iron Castings Specification for Carbon and Alloy Steel Nuts Standard Specification for Steam or Valve Bronze Castings Standard Specification for Composition Bronze or Ounce Metal Castings

9 SPEC /0/18 9/10 ASTM D2000 ASTM F37 ASTM F681 ASME B1.1 ASME B ASME B16.1 ASME B16.3 ASME B16. ASME B16.9 ASME B16.11 ASME B16.21 ASME B16.2 ASME B16.34 ASME B16.39 ASME B ASME B ASME B31.1 ASME B36.10 MSS SP-44 MSS SP-67 MSS SP-83 MSS SP-97 Standard Classification System for Rubber Products in Automotive Application Standard Test Methods for Sealability of Gasket Materials Standard Practice for use of Branch Connections Unified Inch Screw Threads Pipe Threads, General Purpose (Inch) Gray Iron Pipe Flanges and Flange Fittings Malleable Iron Threaded Fittings Pipe Flanges and Flanged Fittings Factory-Made Wrought Buttwelding Fittings Forged Fittings Socket Welded and Threaded Nonmetallic Flat Gaskets for Pipe Flanges Butt Welding Ends Valves Flanged, Threaded and Welding Ends Malleable Iron Threaded Pipe Unions Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch Series) Nuts for General Applications: Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series) Power Piping Welded and Seamless Wrought Steel Pipe Steel Pipeline Flanges Butterfly Valves Class 3000 Steel Pipe Unions, Socket Welding and Threaded Integrally Reinforced Forged Branch Outlet Fitting

10 SPEC /0/18 10/ REVISION AND TRANSITION NOTES Revision notes describe: what was changed, why it was changed, and the plan to implement the change, including whether changes are retroactive Rev Description Revision by Approved by Issue Date YYYY/MM/DD 1 Specification updated and format and number revised. Previous number AC 2011/11/29 AC 2012/01/ /04/26 2 Approved for use in Thompson Piping system Approval Requirements for MB updated AC 2011/11/29 AC 2012/01/ /10/02 3 SPEC added to Reference document section. No technical changes. AD 2012/11/23 AC 2012/01/ /11/23 4 SPEC updated to include stainless steel as an alternative. Socket weld removed from standard. Threaded connection range increased to 1 ½ diameter. BML 2013/11/29 BML 2013/11/ /11/29 Section 2: Changed Pressure Rating to Design Conditions Section 3: Added table, and ref to SPEC-3048 and PROC Section 7: Added some reference codes and/or standards that were omitted. Misc clerical changes Changes are applicable to new installations or modifications to existing systems from this date forward M. Fogarty M. Fogarty 2016/0/18