VA 22 15 00-2009 GENERAL SERVICE COMPRESSED-AIR SYSTEMS.pdf

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1、12-09 22 15 00 - 1 SECTION 22 15 00 GENERAL SERVICE COMPRESSED-AIR SYSTEMS SPEC WRITER NOTE: Delete between / - / if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. PART 1 - GENERAL 1.1 DESCRIPTION This section describes t

2、he requirements for shop compressed air systems, including compressors, electric motors and starters, receiver, all necessary piping, fittings, valves, gages, switches and all necessary accessories, connections and equipment. 1.2 RELATED WORK A. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING. B.

3、 Section 22 05 19, METERS AND GAGES FOR PLUMBING PIPING: Exposed Piping and Gages. C. Section 26 29 11, LOW-VOLTAGE MOTOR STARTERS. D. Section 22 05 12, GENERAL MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT. E. Section 23 05 41, NOISE AND VIBRATION CONTROL FOR HVAC PIPING AND EQUIPMENT. 1.3 SUBMITTALS A

4、. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES. B. Manufacturers Literature and Data shall be submitted for the following products: l. Aboveground Piping 2. Underground Piping 3. Supporting elements 4. Valves 5. Pressure Gages 6. Air Pressure Reducing and Regu

5、lating Valves 7. Automatic drain valves 8. Filter capacity and operating characteristics 9. Vibration Isolation 10. Quick couplings 11. Hose Assemblies 12. Air Compressor System: a. Characteristic performance curves. Provided by IHSNot for ResaleNo reproduction or networking permitted without licens

6、e from IHS-,-,-12-09 22 15 00 - 2 b. Efficiency. c. Compressor; manufacturer and model d. Compressor operating speed e. Capacity; (free air delivered at indicated pressure) f. Type of bearing in compressor g. Type of lubrication h. Capacity of receiver i. Unloader; manufacturer, type, and model j. T

7、ype and adjustment of drive k. Electrical motor; manufacturer, frame and model l. Speed of motor m. Current characteristics and HP of motor n. Air muffler filter; manufacture, type, and model o. After cooler; manufacturer, type, and model C. Hydrostatic, compressed air system, drainage test reports

8、shall be submitted. D. Brazing and welding certificates shall be submitted. E. For Seismic Restraint design the following shall be submitted: 1. Dimensioned drawings of equipment identifying center of gravity and location and description of seismic mounting and anchorage systems. 1.4 APPLICABLE PUBL

9、ICATIONS 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 National Standards Institute (ANSI): A13.1- 07 Scheme for the Identification of Piping Systems Bl6.22-01 Wrough

10、t Copper and Copper Alloy Solder Joint Pressure Fittings C. American Society for Testing and Materials (ASTM): B32-04 . Standard Specification for Solder Metal B61-08 . Standard Specification for Steam or Valve Bronze Castings B62-02 . Standard Specification for Composition Bronze or Ounce Metal Cas

11、tings B88-03 . Standard Specification for Seamless Copper Water Tube D. National Fire Protection Association (NFPA): 99-2008 Health Care Facilities Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 15 00 - 3 E. American Welding Society (AWS):

12、A5.8-04 Specification for Filler Metals for Brazing and Braze Welding F. Manufacturer Standardization of the Valve and Fittings Industry, Inc (MSS): SP-70-06 . Standard for Cast Iron Gate Valves, Flanged and Threaded Ends SP-72-99 . Standard for Ball Valves With Flanged or Butt Welding For General P

13、urpose SP-110-96 Ball Valve Threaded, Socket Welding, Solder Joint, Grooved and Flared Ends 1.5 AS-BUILT DOCUMENTATION A. The electronic documentation and copies of the Operations and Maintenance Manual, approved submittals, shop drawings, and other closeout documentation shall be prepared by a comp

14、uter software program complying with Section 508 of the Rehabilitation Act of 1973, as amended (29 U.S.C 794d). The manufacturer or vendor of the software used to prepare the electronic documentation shall have a Voluntary Product Accessibility Template made available for review and included as part

15、 of the Operations and Maintenance Manual or closeout documentation. All available accessibility functions listed in the Voluntary Accessibility Template shall be enabled in the prepared electronic files. As Adobe Acrobat is a common industry format for such documentation, following the document, “C

16、reating Accessible Adobe PDF files, A Guide for Document Authors“ that is maintained and made available by Adobe free of charge is recommended.” B. Four sets of manufacturers literature and data updated to include submittal review comments and any equipment substitutions. C. Four sets of operation a

17、nd maintenance data updated to include submittal review comments shall be inserted into a three ring binder. All aspects of system operation and maintenance procedures, including piping isometrics, wiring diagrams of all circuits, a written description of system design, control logic, and sequence o

18、f operation shall be included in the operation and maintenance manual. The operations and maintenance manual shall include troubleshooting techniques and procedures for emergency situations. Notes on all special systems or devices such as damper and door closure interlocks shall be included. A List

19、of recommended spare parts (manufacturer, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 15 00 - 4 model number, and quantity) shall be furnished. Information explaining any special knowledge or tools the owner will be required to employ sh

20、all be inserted into the As-Built documentation. PART 2 - PRODUCTS 2.1 PIPES, TUBES, AND FITTINGS A. Pipe for general service compressed air system shall be drawn temper, Type “K“ or “L“ copper tube, conforming to ASTM B88with wrought copper solder joint fittings conforming to ANSI Bl6.22. B. Copper

21、 unions shall conform to ASME B16.22. C. Cast copper alloy flanges shall be class 300 conforming to ASME B16.24. D. Solder filler metal shall consist of lead free alloys conforming to ASTM B 32 with water flushable flux conforming to ASTM B813. E. Silver Brazing Filler metals shall be BCuP series, c

22、opper phosphorus alloys for general duty brazing conforming to AWS A5.8. F. Pipe identification shall comply with ANSI A13.1. 2.2 VALVES A. Ball: 1. Ball valves 80 millimeters or DN80 (3 inches) and smaller shall be full port, two or three piece ball valve conforming to MSS SP-72 and SP-110. The bal

23、l valve shall have a SWP rating of 1035 kPa (150 psig) and a CWP rating of 4140 kPa (600 psig). The body material shall be Bronze ASTM B584, Alloy C844. The ends shall be soldered. 2. Ball valves 100 millimeters or DN100 (4 inches) and larger shall be flanged, class 150, full port steel ball valve c

24、onforming to MSS SP 72. The body shall be split design. The CWP pressure rating shall be 1964 kPa (285 psig). The seals shall be PTFE or TFE. Ball and stem shall be stainless steel. B. Check: 1. Check valves less than 100 mm or DN100 (3 inches) and smaller) shall be class 125, bronze swing check val

25、ves with non metallic Buna-N disc. The check valve shall meet MSS SP-80 Type 4 standard. The check valve shall have a CWP rating of 1380 kPa (200 psig). The check valve shall have a Y pattern horizontal body design with bronze body material conforming to ASTM B 62, solder joints, and PTFE or TFE dis

26、c. 2. Check valves shall be class 125, iron swing check valve with lever and weight closure control. The check valve shall meet MSS SP-71 Type I standard. The check valve shall have a CWP rating of 1380 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,

27、-12-09 22 15 00 - 5 kPa (200 psig). The check valve shall have a clear or full waterway body design with gray iron body material conforming to ASTM A 126, bolted bonnet, flanged ends, bronze trim. 2.3 DIELECTRIC FITTINGS A. Fittings joining copper alloy and ferrous materials shall be isolated. B. Di

28、electric unions shall be factory fabricated union assemblies, rated at 1725 kPa (250 psig) minimum working pressure at 82 degrees C (180 degrees F) suitable for compressed air service. C. Dielectric flanges shall be factory fabricated companion flange assemblies, rated at 2070 kPa (300 psig) minimum

29、 working pressure at 82 degrees C (180 degrees F) suitable for compressed air service. 2.4 FLEXIBLE PIPE CONNECTORS A. Stainless steel hose flexible connectors shall be corrugated, stainless steel tubing with stainless steel wire braid covering and ends welded to inner tubing. The stainless steel ho

30、se connectors shall be rated at 1380 kPa (200 psig) minimum. The end connections for 50 millimeter or DN50 (NPS 2 inches) and smaller shall be threaded steel pipe nipple. The end connections for 65 millimeter or DN65 (NPS 2-1/2 inches and larger shall be flanged steel nipple. 2.5 SPECIALTIES A. PRES

31、SURE GAGES 1. Pressure gages permanently installed in the system or used for testing purposes shall be listed for compressed air service. For pressure gage requirements, see Section 22 05 19, METERS AND GAGES FOR PLUMBING PIPING. B. AIR PRESSURE REGULATING VALVES 1. Air pressure regulating valves un

32、der 80 mm or DN80 (NPS 3 inches) shall be pilot or diaphragm operated, bronze body and trim, direct acting, spring loaded manual pressure setting adjustment and rated for 1380 kPa (200 psig) inlet pressure. 2. Air Pressure regulators 80 mm or DN80 (3 inches)and over shall be pilot operated, bronze b

33、ody, direct acting, spring loaded manual pressure setting adjustment and rated for 1725 kPa (250 psig) inlet pressure. Delivered pressure shall vary not more than one kPa for each 10 kPa variation in inlet pressure. C. Safety valves shall be constructed according to the ASME Boiler and Pressure Code

34、, Section VIII “Pressure Vessels,” and be National Board Certified, labeled, and factory sealed. The safety valve shall be Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 15 00 - 6 constructed of bronze body with poppet type safety valve for

35、 compressed air service. D. The automatic drain valves shall have stainless steel body and internal parts rated for 1380 kPa (200 psig) minimum working pressure. The automatic drain valve shall be capable of automatic discharge of collected condensate. E. The coalescing filter shall be capable of re

36、moving water and oil aerosols, with color change dye to indicate when carbon is saturated and warning light to indicate when selected maximum pressure drop has been exceeded. The coalescing filter shall including mounting brackets for wall mount application. F. Air line lubricators shall come with a

37、 drip chamber and sight dome for observing oil drop entering air stream. The air line lubricator shall have oil feed adjustment screw and quick release collar for easy bowl removal. The Air line lubricators shall including mounting brackets for wall mount application. 2.6 QUICK CONNECT COUPLINGS A.

38、The quick connect coupling assemblies shall have a locking mechanism feature for quick connection and disconnection of compressed air hose. B. Automatic shutoff quick couplings shall be straight through brass body with O-ring or gasket seal and stainless steel or nickel plated steel operating parts.

39、 The automatic shutoff quick connect coupling shall consist of socket or plug ends with one way valve and with barbed outlet or threaded hose fittings for attaching hose. C. Valve less quick couplings shall be straight through brass body with O-ring or gasket seal and stainless steel or nickel plate

40、d steel operating parts. The valve less quick connect coupling shall consist of socket or plug ends and with barbed outlet or threaded hose fittings for attaching hose. 2.7 HOSE ASSEMBLIES A. Hose, clamps, couplings, splicers shall be suitable for compressed air service of nominal diameter indicated

41、 and rated for 2070 kPa (300 psig) minimum working pressure. B. The hose shall be reinforced double wire braid, CR covered hose. C. Hose clamps shall be stainless steel. D. Hose couplings shall be two-piece straight through, threaded brass or stainless steel O-ring or gasket seal swivel coupling wit

42、h barbed ends for connecting two sections of hose. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 15 00 - 7 E. Hose splicers shall be one piece, straight through brass or stainless steel fitting with barbed ends. 2.8 AIR COMPRESSOR FOR SHOP

43、 AIR SYSTEMS A. The packaged air compressor and receiver shall be a factory assembled, wired, piped, and tested that deliver air of quality equal to intake air. The packaged air compressor shall be air cooled, continuous duty. The packaged air compressor shall be capable of operating against a press

44、ure of 690 kPa (100 psig). B. The automatic control panel shall house local control and protection functions. The control panel shall comply with NEMA ICS 2 and UL 508. The motor controllers shall be full voltage, combination magnetic type with under-voltage release feature and motor circuit protect

45、or type disconnecting means and short circuit protective device. The control voltage shall be 120 volts or less. The motor overload protection shall consist of overload relays in each phase. Starting devices shall consist of Hand-off-Auto selector switch in cover of control panel plus pilot device f

46、or automatic control. Automatic control switches shall /alternate lead-lag compressors for duplex arrangement/ /sequence lea-lag compressor for multiplex/. Compressed air system shall include discharge air pressure gage, air filter maintenance indicator, hour meter, compressor discharge air and cool

47、ant temperature gages, and control transformer. For connection to alarm system, an alarm signaling device shall annunciate when backup air compressor is operating. C. The receiver shall be a steel tank constructed according to ASME Boler and Pressure Vessel code Section VIII, Division 1. The receive

48、r pressure rating shall be at least as high as highest discharge pressure of connected compressors and bearing appropriate code symbols and markings. The interior finish shall be corrosion resistant. The tank shall include a safety valve, pressure gage, drain, and pressure regulating valves. D. The

49、packaged air compressor unit shall be secured to a mounting frame strong enough to resist movement due to a seismic event. E. The compressor shall be reciprocating or rotary, receiver mounted with a maximum speed of 1400 RPM. The Lubrication system may be automatic flood system or forced feed. A belt guard shall totally enclose all pulleys and shafts. Provided by IHSNot for ResaleNo reproduction or networking