1/2-Inch Heating Pressure Relief Valve, 3/5/6 Bar

Select a diaphragm pressure relief valve to match a professionally specified heating installation. The listing offers separate 3, 5 and 6 bar versions with a 1/2-inch connection.

• ✅ Choose the specified pressure version - separate set-pressure options help match the system design.
• ✅ Compare a defined connection size - the listed 1/2-inch fitting gives an initial compatibility check.
• ✅ Replace the required component separately - choose the valve when the system specification calls for this type.

The Correct Set Pressure Is a System Requirement

A pressure relief valve is a safety-critical component, so the set pressure must match the appliance and complete system design. The variants are separate pressure versions, not a claim that one valve is adjustable across the range.

Have a qualified installer verify certification, temperature rating, medium, thread, flow capacity and discharge arrangement against the appliance requirements before fitting.

Technical details

• Type: diaphragm pressure relief valve.
• Listed connection: 1/2 inch; verify thread standard.
• Options: 3 bar, 5 bar or 6 bar.
• Package: one selected valve.
• Professional specification and installation required.

Confirm the complete system specification before selecting the required valve.