rated working pressure of 3447 kPa 500 psi dependent on size. Tested in
accordance with MSS SP-71.
2.1.3.2
ASTM A 536. Disc rubber connected with EPDM rubber. Maximum rated working
pressure of 2068 kPa 300 psi tested in accordance with MSS SP-67.
2.1.3.3
Strainers
Include grooved end T-type strainers with steel or ductile iron bodies,
Type 304 removable strainer baskets with 6 or 12 mesh screens and 57
percent open area. Maximum rated working pressure of 5170 kPa 750 psi
dependent on size.
2.1.4
Unions
2.1.4.1
Steel Pipe
Provide ASME B16.39, malleable iron unions, threaded connections.
2.1.4.2
Copper Tubing
Provide FS WW-U-516, bronze unions, solder joint end.
2.1.4.3
Dielectric Union
Provide insulated union with galvanized steel female pipe-threaded end and
a copper solder joint end conforming with ASME B16.39, Class 1,
dimensional, strength and pressure requirements. Union shall have a
water-impervious insulation barrier capable of limiting galvanic current to
one percent of the short-circuit current in a corresponding bimetallic
joint. When dry, insulation barrier shall be able to withstand a 600-volt
breakdown test.
2.1.5
Flanges
Remove raised faces when used with flanges having a flat face.
2.1.5.1
Steel Flanges
ASME B16.5 forged steel, welding type.
2.1.5.2
ASME B16.1.
2.1.5.3
Bronze Screwed Flanges
ANSI B16.24.
2.1.6
Drains and Overflows
2.1.6.1
Steel Pipe
ASTM A 53/A 53M, [Electric resistance welded] [Seamless] Schedule 40,
Malleable iron or forged steel fittings, screwed or welded joints.
SECTION 15185N
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