Cast Iron Swing Check Valves Class 125 Bolted cover, Swing type disc. Description: Design and manufacture: MSS SP-71 Face to face dimensions: ANSI B16.10 Flanged end: ANSI B16.1 Size: 2" ~ 32" Safe working pressure: 200psi Suitable medium: water, oil, gas

Standard materials of parts

No.	Parts	Materials	American Standard
1	Bolt	Steel	ASTM A307-B
2	Nameplate	Aluminum
3	Bonnet	Cast iron	ASTM A 126 Class B
4	Body gasket	Graphite
5	Nut	Steel	ASTM A307-B
6	Side plug	Brass	ASTM B16
7	Gasket	Fiber
8	Hanger pin	Brass	ASTM B16
9	Hanger	Ductile iron	ASTM A536 65-45-12
10	Disc	Cast iron	ASTM A 126 Class B
11	Disc ring	Cast bronze	ASTM B62
12	Washer	Steel	ASTM A307-B
13	Split pin	Stainless steel	ASTM 420 S42000
14	Seat ring	Cast bronze	ASTM B62
15	Disc nut	Steel	ASTM A307-B
16	Body	Cast iron	ASTM A 126 Class B
17	Stud bolt	Steel	ASTM A307-B

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