Spring check valves hold closed until forward pressure overcomes the spring, so they open at a defined cracking pressure, close quietly, and mount in any orientation including vertical-down. They are the right choice on pump discharge and anywhere water hammer is a risk. See the check valve selection guide.
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1/8 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, NBR Seal -
1/8 in. Brass Spring Check Valve, 500 PSI, Male NPT x Female NPT, NBR Seal | 46575 -
1/8 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, Viton Seal -
1/8 in. Brass Spring Check Valve, 500 PSI, Male NPT x Female NPT, Viton Seal | 46575V -
1/4 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, NBR Seal -
1/4 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, Viton Seal -
1/4 in. Brass 316 Stainless Barrel Spring Check Valve -
1/4 in. Stainless Steel Female x Female Spring Check Valve -
1/4 in. Stainless Steel Spring Check Valve, MPT x FPT (949471) -
3/8 in. Barrel Spring Check Valve -
3/8 in. Stainless Steel Spring Check Valve, FPT x FPT (949452) -
3/8 in. Stainless Steel Spring Check Valve, MPT x FPT (949472) -
1/2 in. Inline Female x Female PVC Spring-Loaded Check Valve -
1/2 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, NBR Seal -
1/2 in. Barrel Spring Check Valve -
1/2 in. Stainless Steel Male x Female Spring Check Valve -
1/2 in. Stainless Steel Spring Check Valve, FPT x FPT (949453) -
3/4 in. Female x Female PVC Inline Spring-Loaded Check Valve -
3/4 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, NBR Seal | 46564 -
3/4 in. Brass Spring Check Valve, 500 PSI, Female NPT x Male NPT, NBR Seal | 46569 -
3/4 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, Viton Seal | 46564V -
3/4 in. Brass Spring Check Valve, 500 PSI, Female NPT x Male NPT, Viton Seal | 46569V -
3/4 in. Brass 316 Stainless Barrel Spring Check Valve -
3/4 in. Stainless Steel Spring Check Valve, FPT x FPT (949454)
