2.1.3.13
Pipe Threads
ASME B1.20.1.
2.1.3.14
Solder, Silver
AWS A5.8, or the solder metal shall conform to ASTM B 32 95-5 tin antimony.
2.1.3.15
Unions
ASME B16.39, type to match adjacent piping.
2.1.3.16
Gaskets
ASME B16.21. Approved metallic self-centering style and ring style gasket
consisting of metallic retainer and sealing gland may be used for intended
service.
2.1.4
Polyethylene Tubing
Low-density virgin polyethylene conforming to ASTM D 1248, Type I, Category
5, Class B or C.
2.1.5
Valves
2.1.5.1
Check Valves
a.
Sizes 80 mm 3 inches and less, bronze:
MSS SP-80, Type 3 or 4,
Class 125.
b.
Sizes 50 mm 2 inches through 600 mm 24 inches, cast iron:
MSS
SP-71, Type III or IV, Class 125.
2.1.5.2
a.
Sizes 80 mm 3 inches and less, bronze:
MSS SP-80, Type 1, 2, and
3, Class 125.
b.
Sizes 50 mm 2 inches through 300 mm 12 inches, cast iron:
MSS
SP-85, Type III, Class 125.
2.1.5.3
Angle Valves
a.
Sizes 80 mm 3 inches and less, bronze:
MSS SP-80, Type 1, 2, or
3, Class 125.
b.
Sizes 50 mm 2 inches through 300 mm 12 inches, cast iron:
MSS
SP-85, Type IV, Class 125.
2.1.5.4
a.
Sizes 80 mm 3 inches and less, bronze:
MSS SP-80, Type 1 or 2,
Class 125.
b.
Sizes 50 mm 2 inches through 1200 mm 48 inches, cast iron: MSS
SP-70, Type I, Class 125, Design OT or OF (OS & Y), bronze trim.
SECTION 15562A
Page 15
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