VA 23 22 13-2010 STEAM AND CONDENSATE HEATING PIPING.pdf

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1、03-10 23 22 13 - 1 SECTION 23 22 13 STEAM AND CONDENSATE HEATING PIPING SPEC WRITER NOTE: 1. Delete between / - / if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. 2. References to pressure in this section are gage pressu

2、re unless otherwise noted. PART 1 - GENERAL 1.1 DESCRIPTION A. Steam, condensate and vent piping inside buildings. Boiler plant and outside steam distribution piping is covered in specification Section 33 63 00, STEAM ENERGY DISTRIBUTION and Section 23 21 11, BOILER PLANT PIPING SYSTEMS. 1.2 RELATED

3、 WORK A. Excavation and backfill: Section 31 20 00, EARTH MOVING. B. Underground steam and condensate distribution: Section 33 63 00, STEAM ENERGY DISTRIBUTION. /C. Seismic restraints for piping: Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS./ D. General mechanical r

4、equirements and items, which are common to more than one section of Division 23: Section 23 05 11, COMMON WORK RESULTS FOR HVAC AND STEAM GENERATION. E. Pumps: Section 23 22 23, STEAM CONDENSATE PUMPS. F. Piping insulation: Section 23 07 11, HVAC, PLUMBING, AND BOILER PLANT INSULATION. G. Boiler pip

5、ing: Section 23 21 11, BOILER PLANT PIPING SYSTEMS. H. Water treatment for open and closed systems: Section 23 25 00, HVAC WATER TREATMENT. I. Heating Coils and Humidifiers: Section 23 73 00, INDOOR CENTRAL-STATION AIR-HANDLING UNITS and SECTION 23 31 00, HVAC DUCTS AND CASING. J. Heating and coolin

6、g radiant panels: Section 23 82 00, CONVECTION HEATING AND COOLING UNITS. K. Heating coils: Section 23 82 16, AIR COILS. L. Temperature and pressure sensors and valve operators: Section 23 09 23, DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC. 1.3 QUALITY ASSURANCE A. Section 23 05 11, COMMON WORK RESULTS F

7、OR HVAC AND STEAM GENERATION, which includes welding qualifications. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03-10 23 22 13 - 2 1.4 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, and SAMPLES. B. Manufac

8、turers Literature and Data: 1. Pipe and equipment supports./Submit calculations for variable spring and constant support hangers/. 2. Pipe and tubing, with specification, class or type, and schedule. 3. Pipe fittings, including miscellaneous adapters and special fittings. 4. Flanges, gaskets and bol

9、ting. 5. Valves of all types. 6. Strainers. 7. Pipe alignment guides. 8. Expansion joints. 9. Expansion compensators. 10. Flexible ball joints: Catalog sheets, performance charts, schematic drawings, specifications and installation instructions. 11. All specified steam system components. 12. Gages.

10、13. Thermometers and test wells. 14. Electric heat tracing systems. /15. Seismic bracing details for piping./ C. Manufacturers certified data report, Form No. U-1, for ASME pressure vessels: 1. Heat Exchangers (Steam-to-Hot Water). 2. Flash tanks. D. Coordination Drawings: Refer to Article, SUBMITTA

11、LS of Section 23 05 11, COMMON WORK RESULTS FOR HVAC AND STEAM GENERATION. E. As-Built Piping Diagrams: Provide drawing as follows for steam and steam condensate piping and other central plant equipment. 1. One wall-mounted stick file for prints. Mount stick file in the chiller plant or adjacent con

12、trol room along with control diagram stick file. 2. One set of reproducible drawings. 1.5 APPLICABLE PUBLICATIONS A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only. B. American Societ

13、y of Mechanical Engineers/American National Standards Institute (ASME/ANSI): B1.20.1-83(R2006) Pipe Threads, General Purpose (Inch) B16.4-2006 . Gray Iron Threaded Fittings Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03-10 23 22 13 - 3 C. America

14、n Society of Mechanical Engineers (ASME): B16.1-2005 . Gray Iron Pipe Flanges and Flanged Fittings B16.3-2006 . Malleable Iron Threaded Fittings B16.9-2007 . Factory-Made Wrought Buttwelding Fittings B16.11-2005 Forged Fittings, Socket-Welding and Threaded B16.14-91 Ferrous Pipe Plugs, Bushings, and

15、 Locknuts with Pipe Threads B16.22-2001 Wrought Copper and Copper Alloy Solder-Joint Pressure Fittings B16.23-2002 Cast Copper Alloy Solder Joint Drainage Fittings B16.24-2006 Cast Copper Alloy Pipe Flanges and Flanged Fittings, Class 150, 300, 400, 600, 900, 1500 and 2500 B16.39-98 Malleable Iron T

16、hreaded Pipe Unions, Classes 150, 250, and 300 B31.1-2007 . Power Piping B31.9-2008 . Building Services Piping B40.100-2005 . Pressure Gauges and Gauge Attachments Boiler and Pressure Vessel Code: SEC VIII D1-2001, Pressure Vessels, Division 1 D. American Society for Testing and Materials (ASTM): A4

17、7-99 . Ferritic Malleable Iron Castings A53-2007 . Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless A106-2008 Seamless Carbon Steel Pipe for High-Temperature Service A126-2004 Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings A181-2006 Carbon Ste

18、el Forgings, for General-Purpose Piping A183-2003 . Carbon Steel Track Bolts and Nuts A216-2008 . Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High Temperature Service A285-01 . Pressure Vessel Plates, Carbon Steel, Low-and-Intermediate-Tensile Strength A307-20

19、07 . Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength A516-2006 . Pressure Vessel Plates, Carbon Steel, for Moderate-and- Lower Temperature Service A536-84(2004)e1 . Standard Specification for Ductile Iron Castings Provided by IHSNot for ResaleNo reproduction or networking permitted without

20、 license from IHS-,-,-03-10 23 22 13 - 4 B32-2008 Solder Metal B61-2008 Steam or Valve Bronze Castings B62-2009 Composition Bronze or Ounce Metal Castings B88-2003 Seamless Copper Water Tube F439-06 . Socket-Type Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80 F441-02(200

21、8) . Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe, Schedules 40 and 80 E. American Welding Society (AWS): A5.8-2004 Filler Metals for Brazing and Braze Welding B2.1-00 Welding Procedure and Performance Qualifications F. Manufacturers Standardization Society (MSS) of the Valve and Fitting In

22、dustry, Inc.: SP-67-95 . Butterfly Valves SP-70-98 . Cast Iron Gate Valves, Flanged and Threaded Ends SP-71-97 . Gray Iron Swing Check Valves, Flanged and Threaded Ends SP-72-99 . Ball Valves with Flanged or Butt-Welding Ends for General Service SP-78-98 . Cast Iron Plug Valves, Flanged and Threaded

23、 Ends SP-80-97 . Bronze Gate, Globe, Angle and Check Valves SP-85-94 . Cast Iron Globe and Angle Valves, Flanged and Threaded Ends G. Military Specifications (Mil. Spec.): MIL-S-901D-1989 Shock Tests, H.I. (High Impact) Shipboard Machinery, Equipment, and Systems H. National Board of Boiler and Pres

24、sure Vessel Inspectors (NB): Relieving Capacities of Safety Valves and Relief Valves I. Tubular Exchanger Manufacturers Association: TEMA 18th Edition, 2000 PART 2 - PRODUCTS 2.1 PIPE AND EQUIPMENT SUPPORTS, PIPE SLEEVES, AND WALL AND CEILING PLATES A. Provide in accordance with Section 23 05 11, CO

25、MMON WORK RESULTS FOR HVAC AND STEAM GENERATION. 2.2 PIPE AND TUBING A. Steam Piping: Steel, ASTM A53, Grade B, seamless or ERW; A106 Grade B, Seamless; Schedule 40. B. Steam Condensate and Pumped Condensate Piping: 1. Concealed above ceiling, in wall or chase: Copper water tube ASTM B88, Type K, ha

26、rd drawn. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03-10 23 22 13 - 5 2. All other locations: Copper water tube ASTM B88, Type K, hard drawn; or steel, ASTM A53, Grade B, Seamless or ERW, or A106 Grade B Seamless, Schedule 80. C. Vent Piping:

27、Steel, ASTM A53, Grade B, seamless or ERW; A106 Grade B, Seamless; Schedule 40, galvanized. 2.3 FITTINGS FOR STEEL PIPE A. 50 mm (2 inches) and Smaller: Screwed or welded. 1. Butt welding: ASME B16.9 with same wall thickness as connecting piping. 2. Forged steel, socket welding or threaded: ASME B16

28、.11. 3. Screwed: 150 pound malleable iron, ASME B16.3. 125 pound cast iron, ASME B16.4, may be used in lieu of malleable iron, except for steam and steam condensate piping. Provide 300 pound malleable iron, ASME B16.3 for steam and steam condensate piping. Cast iron fittings or piping is not accepta

29、ble for steam and steam condensate piping. Bushing reduction of a single pipe size, or use of close nipples, is not acceptable. 4. Unions: ASME B16.39. 5. Steam line drip station and strainer quick-couple blowdown hose connection: Straight through, plug and socket, screw or cam locking type for 15 m

30、m (1/2 inch) ID hose. No integral shut-off is required. B. 65 mm (2-1/2 inches) and Larger: Welded or flanged joints. 1. Butt welding fittings: ASME B16.9 with same wall thickness as connecting piping. Elbows shall be long radius type, unless otherwise noted. 2. Welding flanges and bolting: ASME B16

31、.5: a. Steam service: Weld neck or slip-on, raised face, with non-asbestos gasket. Non-asbestos gasket shall either be stainless steel spiral wound strip with flexible graphite filler or compressed inorganic fiber with nitrile binder rated for saturated and superheated steam service 750 degrees F an

32、d 1500 psi. b. Flange bolting: Carbon steel machine bolts or studs and nuts, ASTM A307, Grade B. C. Welded Branch and Tap Connections: Forged steel weldolets, or branchlets and threadolets may be used for branch connections up to one pipe size smaller than the main. Forged steel half-couplings, ASME

33、 B16.11 may be used for drain, vent and gage connections. 2.4 FITTINGS FOR COPPER TUBING A. Solder Joint: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03-10 23 22 13 - 6 1. Joints shall be made up in accordance with recommended practices of the ma

34、terials applied. Apply 95/5 tin and antimony on all copper piping. B. Bronze Flanges and Flanged Fittings: ASME B16.24. C. Fittings: ANSI/ASME B16.18 cast copper or ANSI/ASME B16.22 solder wrought copper. 2.5 DIELECTRIC FITTINGS A. Provide where copper tubing and ferrous metal pipe are joined. B. 50

35、 mm (2 inches) and Smaller: Threaded dielectric union, ASME B16.39. C. 65 mm (2 1/2 inches) and Larger: Flange union with dielectric gasket and bolt sleeves, ASME B16.42. D. Temperature Rating, 121 degrees C (250 degrees F) for steam condensate and as required for steam service. E. Contractors optio

36、n: On pipe sizes 2” and smaller, screwed end brass gate valves / or dielectric nipples / may be used in lieu of dielectric unions. 2.6 SCREWED JOINTS A. Pipe Thread: ANSI B1.20. B. Lubricant or Sealant: Oil and graphite or other compound approved for the intended service. 2.7 VALVES A. Asbestos pack

37、ing is not acceptable. B. All valves of the same type shall be products of a single manufacturer. C. Provide chain operators for valves 150 mm (6 inches) and larger when the centerline is located 2100 mm (7 feet) or more above the floor or operating platform. D. Shut-Off Valves 1. Gate Valves: a. 50

38、 mm (2 inches) and smaller: MSS-SP80, Bronze, 1034 kPa (150 lb.), wedge disc, rising stem, union bonnet. b. 65 mm (2 1/2 inches) and larger: Flanged, outside screw and yoke. 1) High pressure steam 413 kPa (60 psig) and above nominal MPS system): Cast steel body, ASTM A216 grade WCB, 1034 kPa (150 ps

39、ig) at 260 degrees C (500 degrees F), 11-1/2 to 13 percent chrome stainless steel solid disc and seats. Provide 25 mm (1 inch) factory installed bypass with globe valve on valves 100 mm (4 inches) and larger. 2) All other services: MSS-SP 70, iron body, bronze mounted, 861 kPa (125 psig) wedge disc.

40、 E. Globe and Angle Valves: 1. Globe Valves: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03-10 23 22 13 - 7 a. 50 mm (2 inches) and smaller: MSS-SP 80, bronze, 1034 kPa (150 lb.) Globe valves shall be union bonnet with metal plug type disc. b. 65

41、 mm (2 1/2 inches) and larger: 1) Globe valves for high pressure steam 413 kPa (60 psig) and above nominal MPS system): Cast steel body, ASTM A216 grade WCB, flanged, OS while size 400 mm (16 inches) through 760 mm (30 inches) shall be of one piece construction. B. Material: 1. Cast or forged steel

42、pressure containing parts and bolting in accordance with Section II of the ASME Boiler Code or ASME B31.1. Retainer may be ductile iron ASTM A536, Grade 65-45-12, or ASME Section II SA 515, Grade 70. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03

43、-10 23 22 13 - 10 2. Gaskets: Steam pressure molded composition design for a temperature range of from minus 10 degrees C (50 degrees F) to plus 274 degrees C (525 degrees F). C. Certificates: Submit qualifications of ball joints in accordance with the following test data: 1. Low pressure leakage te

44、st: 41 kPa (6psig) saturated steam for 60 days. 2. Flex cycling: 800 Flex cycles at 3445 kPa (500 psig) saturated steam. 3. Thermal cycling: 100 saturated steam pressure cycles from atmospheric pressure to operating pressure and back to atmospheric pressure. 4. Environmental shock tests: Forward cer

45、tificate from a recognized test laboratory, that ball joints of the type submitted has passed shock testing in accordance with Mil. Spec MIL-S-901. 5. Vibration: 170 hours on each of three mutually perpendicular axis at 25 to 125 Hz; 1.3 mm to 2.5 mm (0.05 inch to 0.1 inch) double amplitude on a sin

46、gle ball joint and 3 ball joint off set. 2.12 STEAM SYSTEM COMPONENTS A. Heat Exchanger (Steam to Hot Water): Shell and tube type, U-bend removable tube bundle, steam in shell, water in tubes, equipped with support cradles. 1. Maximum tube velocity: 2.3 m/s (7.5 feet per second). 2. Tube fouling fac

47、tor: TEMA Standards, but not less than 0.00018 m2K/W (0.001 ft2hrF/Btu). 3. Materials: a. Shell: Steel. b. Tube sheet and tube supports: Steel or brass. c. Tubes: 20 mm (3/4 inch) OD copper. d. Head or bonnet: Cast iron or steel. 4. Construction: In accordance with ASME Pressure Vessel Code for 861

48、kPa (125 psig) working pressure for shell and tubes. Provide manufacturers certified data report, Form No. U-1. B. Optional Heat Transfer Package: In lieu of field erected individual components, the Contractor may provide a factory or shop assembled package of heat exchangers, pumps, and other compo

49、nents supported on a welded steel frame. C. Steam Pressure Reducing Valves in PRV Stations: 1. Type: Single-seated, diaphragm operated, spring-loaded, external or internal steam pilot-controlled, normally closed, adjustable set pressure. Pilot shall sense controlled pressure downstream of main valve. 2. Service: Provide controlled reduced pressure to steam piping systems. P