MSS SP-126 Silent Check Valves, ASTM A536 65-45-12, 300 PSI

Dec 20, 2024

Product Item: Silent Check Valve
Standard: MSS SP-126
Working Pressure: 300 PSI
200 PSI and 250 PSI available upon request
Material: Ductile Iron ASTM A536 Grade 65-45-12
Temperature Range: 0°C to 80°C
Connection Ends: Flange to ASME B16.1 Class 125 LB
Coating: Fusion Bonded Epoxy Coating following ANSI/AWWA C550 or painting upon request

Material Specification

Part No.	Part	Standard Specification	Options
1	Body	ASTM A536, 65-45-12
2	Stem	AISI 420	AISI 304, AISI 316, AISI 431
3	Hinge Bushing	ASTM B62
4	Spring	AISI 304	AISI 316
5	Nut	AISI 304	AISI 316
6	Disc	ASTM A536, 65-45-12 Bronze Plated
7	O-Ring	EPDM	NBR
8	Hinge Bushing	ASTM B62
9	Seat	ASTM A536, 65-45-12 Bronze Plated
10	O-Ring	NBR	EPDM

Note: For Special material request that differ from standard specification, please clearly indicate them on the inquiry or order list.

Dimensions

DN		Dimensions (mm)
Inch	mm	L	D	D1	C	n-øL
2"	50	120	152	120.5	16	4-ø19.1
2.5"	65	135	178	139.5	17.5	4-ø19.1
3"	80	155	191	152.5	19	4-ø19.1
4"	100	165	229	190.5	24	4-ø19.1
5"	125	190	254	216	24	8-ø22.2
6"	150	210	279	241.5	25.5	8-ø22.2
8"	200	260	343	298.5	28.5	8-ø22.2
10"	250	285	406	362	30.5	12-ø25.4
12"	300	315	483	432	32	12-ø25.4