Hydronic Valves for Heating Systems

Browse a collection of sturdy safety relief valves at F.W. Webb. A safety relief valve releases pressure in a hydronic heating system to help return it to a normal level. Constructed in bronze, iron, or lead-free brass, these relief pressure valves are strong enough to stand up to normal everyday use in a heating system. Use our helpful filters to sort the hydronic valves by end connection, size, seal material, and end-to-end distance to select the right fit for your system. Explore our selection and find top-quality safety relief valves from trusted makers Watts, Apollo, and Bell & Gossett.

Frequently Asked Questions

Why is a safety valve used?

A safety valve protects against excess pressure and system failure by releasing a small amount of liquid to bring the pressure back to a safe level.

How does a pressure relief valve work?

A relief valve releases surplus pressure in an air compression or hydronic system. The spring-loaded mechanism opens based on the increased pressure that goes up the valve. After enough air is released, the pressure relief valve closes up once the levels return to normal.

What happens if a pressure relief valve fails?

If a pressure relief valve fails, it can cause damage to the equipment. This damage can result in an explosion that can cause injuries or a disturbance in the workflow.

Feedback