Pressure Relief Valves

Watts 0121399 LFBP30 1/2" MNPT x FNPT lead-free diaphragm operated bypass control relief valve with an adjustable range of 10-50 psi. Learn More

Watts number N36 1/2" IPF vacuum relief valve. This valve features a maximum water pressure of 200 psi, maximum temperature of 250°F, and opens at less than 1/2" vacuum. It is also suitable for steam service to 15 psi and has a venting capacity of 13.5 CFM. Vacuum relief valves automatically vent a system if a vacuum occurs and will automatically vent a closed system to atmosphere when a vacuum is created preventing conditions where water could be siphoned from the system. Learn More

Watts 0121524 model LF174A-125 1-1/4" NPT threaded lead-free boiler pressure relief valve with a set pressure of 125 psi. This 1-1/4" lead-free boiler pressure relief valve is used in hot water heating and domestic supply boiler applications. Learn More

Conbraco satin brass 1/8" IPM air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass double female 1/8" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass male by female 1/8" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass double male 1/8" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass 1/4" IPM air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass double female 1/4" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass double male 1/4" NPT air cock with lever handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass double male 1/4" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass double female 3/8" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass male by female 3/8" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass double male 3/8" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco satin brass double male 1/2" NPT air cock with tee handle tested to 80 psi air and 500°F. Learn More

Conbraco chain operated 1/2" IPM gauge cock, rated to 250 psi, which uses a spring loaded lever for use on water columns beyond reach of the floor. Learn More

Conbraco polished brass wheel handle 1/2" IPM compression gauge cock, rated to 250 psi, with a soft metal seat and a stuffing box. Learn More

Conbraco polished brass wheel handle 3/4" IPM compression gauge cock, rated to 250 psi, with a soft metal seat and a stuffing box. Learn More

Watts number N36 3/4" IPF vacuum relief valve. This valve features a maximum water pressure of 200 psi, maximum temperature of 250°F, and opens at less than 1/2" vacuum. It is also suitable for steam service to 15 psi and has a venting capacity of 20 CFM. Vacuum relief valves automatically vent a system if a vacuum occurs and will automatically vent a closed system to atmosphere when a vacuum is created preventing conditions where water could be siphoned from the system. Learn More

Bell & Gossett model 3301-30 cast iron hot water relief valve in an angle pattern with a 1-1/2" inlet and a 2" outlet. This valve can be set at 30 psi and has a 3,300,000 BTU capacity. Learn More