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Safety Relief Valves

Safety Relief Valves

Help prevent damage to boilers and pressure vessels from excess pressure in liquid and vapor systems. These safety valves automatically vent the system when the pressure reaches a preset value.

Tamper Resistant

These valves are preset and sealed at the factory to resist tampering.

Bronze Body

12 in Inlet — NPT Connection

34 in Inlet — NPT Connection

1 in Inlet — NPT Connection

1 14 in Inlet — NPT Connection

1 12 in Inlet — NPT Connection

2 in Inlet — NPT Connection

Cast Iron Body

2 in Inlet — NPT Connection

Compressed Air Systems & Tanks

Use these safety valves to provide protection from excess pressure in air and gas compressors, pipe, and tanks.

Bronze Body

12 in Inlet — NPT Connection

34 in Inlet — NPT Connection

1 in Inlet — NPT Connection

1 14 in Inlet — NPT Connection

1 12 in Inlet — NPT Connection

2 in Inlet — NPT Connection

Brass Body

14 in Inlet — NPT Connection

38 in Inlet — NPT Connection

12 in Inlet — NPT Connection

Aluminum Body

14 in Inlet — NPT Connection

Hot Water Supply Systems & Heating Boilers

Protect against dangerous high pressure in boilers, hot water systems, and unfired pressure vessels caused by poorly regulated BTU input.

Brass Body

34 in Inlet — NPT Connection

Bronze Body

34 in Inlet — NPT Connection

1 in Inlet — NPT Connection

1 14 in Inlet — NPT Connection

1 12 in Inlet — NPT Connection

2 in Inlet — NPT Connection

Cast Iron Body

2 in Inlet — NPT Connection

Iron Body

34 in Inlet — NPT Connection

1 in Inlet — NPT Connection

1 14 in Inlet — NPT Connection

1 12 in Inlet — NPT Connection

2 in Inlet — NPT Connection

Steam Heating & Supply Boilers

Install these high-capacity valves in low-pressure steam heating systems and supply boilers.

Bronze Body

12 in Inlet — NPT Connection

34 in Inlet — NPT Connection

1 in Inlet — NPT Connection

1 14 in Inlet — NPT Connection

1 12 in Inlet — NPT Connection

2 in Inlet — NPT Connection

2 12 in Inlet — NPT Connection

3 in Inlet — NPT Connection

Cast Iron Body

2 in Inlet — NPT Connection

2 12 in Inlet — NPT Connection

3 in Inlet — NPT Connection

Liquid Safety

An excellent choice for a variety of liquid systems, these relief valves are compact for installation in tight spaces.

Stainless Steel Body

38 in Inlet — NPT Connection

12 in Inlet — NPT Connection

Pressure Vessels & Pressure Piping Systems

Able to withstand higher pressures than standard relief valves, these valves are ideal for use with pressure vessels and pressure piping systems.

Stainless Steel Body

12 in Inlet — NPT Connection

34 in Inlet — NPT Connection

Tankless & Close-Loop Hot Water Systems

These fully automatic valves have a preset pressure setting and reset themselves after relieving pressure. For use with hot water service only.

Brass Body

34 in Inlet — NPT Connection

Bronze Body

34 in Inlet — NPT Connection