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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3/4 in. Stainless Steel Spring Check Valve, MPT x FPT (949474) -
1 in. Stainless Steel Barrel Spring Check Valve (949445) -
1 in. Stainless Steel Spring Check Valve, FPT x FPT (949455) -
1 in. Stainless Steel Spring Check Valve, MPT x FPT (949475) -
1-1/4 in. Inline Female x Female PVC Spring-Loaded Check Valve -
1-1/4 in. Stainless Steel Barrel Spring Check Valve (949446) -
1-1/2 in. Barrel Spring Check Valve -
2 in. Stainless Steel Barrel Spring Check Valve (949448)