Where pressure exceeds 103 kPa (gage) 15 psig, provide
socket-welding type only.
(2)
Malleable Iron Fittings:
ASME B16.3, threaded.
b.
Sizes 65 mm 2 1/2 inches and larger:
(1) Steel Fittings:
ASME B16.9, buttwelding or ASME B16.5,
flanged.
(2) Bronze Fittings: ANSI B16.24, flanged.
Sizes larger than
200 mm 8 inches are not permitted.
2.2.4.2
Fittings for Copper Tubing
ANSI B16.18, cast copper alloy or ASME B16.22, wrought copper, solder joint
type. Flared or compression joint type fittings for tube sizes not
exceeding 50 mm 2 inches outside diameter (O.D.) may be provided as
permitted in ASME B31.1.
2.2.5
Unions
2.2.5.1
Unions for Steel Pipe
ASME B16.39, threaded.
2.2.5.2
Unions for Copper Tubing
FS WW-U-516, solder joint end type.
2.2.6
Flanges
Remove the raised faces on flanges when used with flanges having a flat
face.
2.2.6.1
Steel Flanges
ASME B16.5, forged steel, welding type.
2.2.6.2
Bronze Flanges
ANSI B16.24, threaded.
2.2.7
Valves
Shall conform to the following paragraphs.
End connections shall conform
to paragraph entitled "End Connections."
2.2.7.1
a.
Bronze Gate Valves: MSS SP-80, [Type 1 (solid wedge, non-rising
stem)] [or] [Type 2 (solid wedge, inside screw, rising stem)], 80
mm 3 inches and smaller, threaded or solder joint ends, and not
less than Class 150.
**************************************************************************
NOTE: When special trim material is required,
revise latter portion of paragraph to identify the
special trim material.
SECTION 15183N
Page 15
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