Check Valves

4 in. (101.6 mm) NPT-Threaded Check Valve provides a watertight defense against pollution caused by backflow from water-based systems, including sprinkler and standpipe systems. This UL-listed valve can be installed on a supply line, fire department...

1 in. (25.4 mm) In-Line Check Valve NPT provides a watertight defense against pollution caused by backflow from water-based systems, including sprinkler and standpipe systems. Can be installed on a supply line or fire department connection (FDC) in...

4 in. (101.6 mm) Grooved Check Valve ensures that water from flowing from fire department connections, bypass connections, gravity pressure tanks, or pump discharge connections flows to your sprinklers-not to the street. The steel clapper forms a...

Prevent backflow contamination with this 1-1/2 in. (38.1 mm) Swing Check Valve NPT. Ready for use in fire sprinkler, standpipe, and water-based systems, the full-floating clapper assembly features a swinging brass disk and water-ready rubber that form a...

1-1/2 in. (38.1 mm) In-Line Check Valve NPT provides a watertight defense against pollution caused by backflow from water-based systems, including sprinkler and standpipe systems. Can be installed on a supply line or fire department connection (FDC) in...

1-1/4 in. (31.75 mm) In-Line Check Valve NPT provides a watertight defense against pollution caused by backflow from water-based systems, including sprinkler and standpipe systems. Can be installed on a supply line or fire department connection (FDC) in...

6 in. (152.4 mm) Grooved Check Valve ensures that water from flowing from fire department connections, bypass connections, gravity pressure tanks, or pump discharge connections flows to your sprinklers-not to the street. The steel clapper forms a...

Prevent backflow contamination with this 1-1/4 in. (31.75 mm) Swing Check Valve NPT. Ready for use in fire sprinkler, standpipe, and water-based systems, the full-floating clapper assembly features a swinging brass disk and water-ready rubber that form a...

4 in. (101.6 mm) NPT-Threaded x Grooved Check Valve provides a watertight defense against pollution caused by backflow from water-based systems, including sprinkler and standpipe systems. This UL-listed valve can be installed on a supply line, fire...

2 in. (50.8 mm) In-Line Check Valve NPT provides a watertight defense against pollution caused by backflow from water-based systems, including sprinkler and standpipe systems. Can be installed on a supply line or fire department connection (FDC) in...

2 in. (50.8 mm) Grooved Check Valve ensures that water from flowing from fire department connections, bypass connections, gravity pressure tanks, or pump discharge connections flows to your sprinklers-not to the street. The steel clapper forms a...

2-1/2 in. (63.5 mm) Grooved Check Valve ensures that water from flowing from fire department connections, bypass connections, gravity pressure tanks, or pump discharge connections flows to your sprinklers-not to the street. The steel clapper forms a...