Swing Check Valves

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swing check valves

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Swing check valves:

swing check valves

Trim Material Specification to API 600

Material code	Disc Sealing Surface	Seat Ring surface	Stem
1	13Cr	13Cr	A182
2	18Cr-8Ni	18Cr-8Ni	A182
5	Stellite	Stellite	A182
8	13Cr	Stellite	A182
9	Monel	Monel	Ni-Cu
10	18Cr-8Ni	18Cr-8Ni	A182
12	18Cr-8Ni	Stellite	A182
13	Alloy	20	Alloy
16	Stellite	Stellite	A182
20	Bronze	Bronze	Bronze

Standard Material Specification

Name	Carbon Steel to ASTM		Alloy steel to ASTM			Stainless Steel to ASTM
Body	A216 WCB	A352 LCB	A217 WC6	A217 WC9	A217 C5	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
Seat ring	A 105	A350 LF2	A182 F11	A182 F22	A182 F5a	A182 F304	A182 F316	A182 F304L	A182 F316L
Disc	A216 WCB	A352 LCB	A217 WC6	A217 WC9	A217 C5	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
Hinge	A216 WCB	A352 LCB	A217 WC6	A217 WC9	A217 C5	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
Gasket	Reinforced Flat Graphite or Stainless Steel Spiral Wound with Graphite
Bonnet Bolts	A 193 B7	A 193 L7	A 193 B16	A 193 B16	A 193 B16	A 193 B8	A 193 B8	A 193 B8	A 193 B8
Nuts	A194 2H	A194 4	A194 4	A194 4	A194 4	A194 8	A194 8	A194 8	A194 8
Cover	A216 WCB	A352 LCB	A217 WC6	A217 WC9	A217 C5	A351 CF8	A351 CF8M	A351 CF3	A351 CF3M
Disc nut	ANSI 410					ANSI 316
Hook Screw	Steel
Set Screw	ANSI 410					ANSI 316
Hinge Pin	See material specification
Plug	Steel					AStainless Steel
Seal ring	A276 304					A276 316L
Nameplace	Stainless Steel or Aluminum					Stainless Steel

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