2.11.12.3
Steel Flanges
Flanged fittings including flanges, bolts, nuts, bolt patterns, etc. shall
be in accordance with ASME B16.5 class 150 and shall have the manufacturers
trademark affixed in accordance with MSS SP-25. Flange material shall
conform to ASTM A 105/A 105M. Flanges for high temperature water systems
shall be serrated or raised-face type. Blind flange material shall conform
to ASTM A 516/A 516M cold service and ASTM A 515/A 515M for hot service.
Bolts shall be high strength or intermediate strength with material
conforming to ASTM A 193/A 193M.
2.11.12.4
Welded Fittings
Welded fittings shall conform to ASTM A 234/A 234M with WPA marking.
Buttwelded fittings shall conform to ASME B16.9, and socket-welded fittings
shall conform to ASME B16.11.
2.11.12.5
Cast-Iron Fittings
Fittings shall be ASME B16.4, Class 125, type required to match connecting
piping.
2.11.12.6
Malleable-Iron Fittings
Fittings shall be ASME B16.3, type as required to match connecting piping.
2.11.12.7
Unions
Unions shall be ASME B16.39, Class 150.
2.11.12.8
Threads
Pipe threads shall conform to ASME B1.20.1.
2.11.12.9
Grooved Mechanical fittings
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NOTE: Grooved mechanical fittings will not be
allowed for steam piping or condensate piping or hot
water piping above 110 degrees C (230 degrees F).
**************************************************************************
Joints and fittings shall be designed for not less than [862 kPa 125 psig]
[_____] service and shall be the product of the same manufacturer. Fitting
and coupling houses shall be ductile iron conforming to ASTM A 536.
Gaskets shall be molded synthetic rubber with central cavity, pressure
responsive configuration and shall conform to ASTM D 2000 for circulating
medium up to 110 degrees C 230 degrees F. Grooved joints shall conform to
AWWA C606. Coupling nuts and bolts shall be steel and shall conform to
ASTM A 183.
2.11.13
Copper Tubing and Fittings
2.11.13.1
Copper Tubing
Tubing shall be ASTM B 88, ASTM B 88M, Type K or L.
Adapters for copper
tubing shall be brass or bronze for brazed fittings.
SECTION 15569A
Page 46
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