1/2" Pressure Relief Valve | 3 Bar | FBSP

This 1/2" pressure relief valve protects pressurised plumbing, heating and water systems from excessive pressure. It's factory-set to operate at 3 bar, automatically releasing pressure once the system exceeds its preset limit.

With 1/2" female BSP connections at both ends, the valve combines a brass body, diaphragm-operated mechanism and manual handwheel activation, giving reliable overpressure protection for domestic and commercial systems.

Key Features

• 1/2" female BSP inlet and outlet connections
• Factory-set pressure of 3 bar
• Automatic pressure relief for pressurised systems
• Manual handwheel for valve activation and testing
• Brass valve body
• EPDM diaphragm
• Reinforced polyamide handwheel and bonnet
• Maximum allowable pressure: 10 bar
• Maximum working temperature: 115°C
• Designed for heating, cooling and water systems
• PED 2014/68/EU compliant design

Typical Applications

• Central heating systems
• Pressurised heating systems
• Domestic hot water systems
• Water heaters
• Heating and cooling installations
• Boiler systems
• Pressurised plumbing systems
• General overpressure protection

Technical Specifications