Swing check valve 1" NPT #200 SS316

SIZE	A	L	H
1/4''	0.39''	2.56''	1.77''
3/8''	0.47''	2.56''	1.77''
1/2''	0.59''	2.60''	1.81''
3/4''	0.79''	3.19''	2.13''
1''	0.98''	3.58''	2.36''
1 1/4''	1.26''	4.19''	2.83''
1 1/2''	1.57''	4.76''	2.95''
2''	1.97''	5.59''	3.23''
2 1/2''	2.56''	6.26''	3.54''
3''	3.15''	7.48''	4.09''

Check valves are mechanical valves that permit gases and liquids to flow in only one direction, preventing flow from reversing. They are classified as one-way directional valves. Fluid/gas flow in the desired direction opens the valve, while backflow forces the valve closed