Swing Check Valve

Introducing WELCO Valve Co., Ltd.'s high-quality Swing Check Valve. The Swing Check Valve is designed to prevent backflow in pipelines, ensuring fluid travels in one direction only. This valve is ideal for applications where non-slam and silent closures are required. With WELCO Valve Co., Ltd.'s expertise in valve manufacturing, our Swing Check Valve ensures reliable and efficient performance. Our valves are made from premium materials, ensuring durability and longevity. The Swing Check Valve is available in various sizes and specifications to meet the specific needs of our customers. Trust WELCO Valve Co., Ltd. for superior quality and reliable performance in Swing Check Valve solutions for your industrial applications

product details

Product parameter

Applicable Standards

Swing check valve 800LB, 900LB~1500LB

Standard Material Specification

NO.	Part Name	CS to ASTM	AS to ASTM	SS to ASTM
NO.	Part Name	Type A105	Type F22	Type F304(L)	Type F316(L)
1	Body	A105	A182 F22	A182 F304(L)	A182 F316(L)
2	Seat	A276 410	A276 304	A276 304(L)	A276 316(L)
3	Swing Disc	A276 420	A276 304	A276 304(L)	A276 316(L)
4	Nut	A194 2H	A194 4	A194 8	A194 8M
5	Hinge	A105	A182 F22	A182 F304L	A182 F316(L)
6	Gasket	Corrugated SS+Graphite		SS+PTFE
7	Bonnet	A105	A182 F22	A182 F304L	A182 F316(L)
8	Bolt	A193 B7	A193 B16	A193 B8M	A193 B8M
9	Pin	A276 420		A182 F304	A182 F316
Suitable Medium		W.O.G.etc	W.O.G.etc	HNO 3 ,CH 3 OOH etc
Suitable Temperature		-29℃~425℃	-29℃~550℃	-29℃~180℃

Note: Other materials are available upon request.

CS=Carbon Steel; AS=Alloy Steel; SS=Stainless Steel.

Dimension (mm) and Weight (Kg)

NPS		3/8"	1/2"	3/4"	1"	11/4"	1/2"	2"
L	800Lb	79	79	92	111	120	120	140
L	900Lb~1500Lb	92	111	111	120	120	140	178
H	800Lb	61	61	78	84	101	120	133
H	900Lb~1500Lb	79	79	79	97	105	120	140
Weight	800Lb	1.1	1.0	1.9	3.9	4.5	7.3	10.0
Weight	900Lb~1500Lb	3.1	3.0	3.6	4.3	6.1	8.8	12.6