The Boiler Safety Pressure Relief Valve is a 1/2" valve designed to release excess pressure in a gas or petrol boiler system. Made of brass with a 3 bar pressure rating, this valve is compact and ideal for use in storage tank water heaters. It has a water connection of 0.5 cm compression and can be mounted in the whole house. The Universal brand ensures quality and reliability, while the A+++ energy efficiency rating makes it a cost-effective option for heating systems. With a first-hour recovery rate of 204 litres per hour, this pressure relief valve is a key component in maintaining boiler safety and efficiency.