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CLASSIFICATION
Cast and forged steel valves for oil and gas systems

Double disc check valve for clamping

Small size, low installation space requirements; Close quickly and move sensitively; Spring loaded valve disc ensures closure; Optional soft seal design; The shaft pin adopts a built-in structure with no external leakage points.

Category:

check valve

Consultation Hotline:

0086-512-6270-1855

technical manual

Product Message

Product characteristics

Small size, low installation space requirements;

Close quickly and move sensitively;

Spring loaded valve disc ensures closure;

Optional soft seal design;

The shaft pin adopts a built-in structure with no external leakage points.

technical specifications

Product parameters

Nominal size	2" ~40" (DN50-DN1000)
nominal pressure	ASME 150 to 1500LB
Temperature	-196℃~800℃
body material	WCB, CF8, CF8M, CF3, CF3M, LCB, 2205 Etc.
Design standards	API 6D, API 594, BS1868, ASME B16.34
Pressure and temperature levels	ANSI B16.34
face-to-face	ANSI B16.10
End Connection	The flange end complies with ASME B16.5, and the welded end complies with ASME B16.25
Inspection and Testing	API 598
mark	MSS SP-25

Bill of Material

NO.	Part name	Standard materials	low-temperature environment	Stainless steel	high temperature environment	acidic environment
1	valve body	ASTM A216-WCB+STL.6	ASTM A351-CF8M+STL.6	ASTM A352-LCC+STL.6	ASTM A217-WC9+STL.6	ASTM A216-WCB+STL.6
2	Valve flap	ASTM A216-WCB+Cr13	ASTM A351-CF8M	ASTM A352-LCC+316	ASTM A217-WC9+STL.6	ASTM A216-WCB+Cr13(NACE)
3	pin	ASTM A276-410	ASTM A276-316	ASTM A276-316	ASTM A276-410	ASTM A276-410(NACE)
4	spring	Chromium nickel iron alloy X-750	Chromium nickel iron alloy X-750	Chromium nickel iron alloy X-750	Chromium nickel iron alloy X-750	Chromium nickel iron alloy X-750
5	Spring seat	ASTM A182-F6a	ASTM A182-F316	ASTM A182-F316	ASTM A182-F6a	ASTM A182-F6a(NACE)
6	spacer	ASTM A182-F6a	ASTM A182-F316	ASTM A182-F316	ASTM A182-F6a	ASTM A182-F6a(NACE)
7	ear	carbon steel	carbon steel	carbon steel	carbon steel	carbon steel