The Worcester Bosch 87174010120 Safety Relief Valve – 3 Bar is a high-quality replacement safety component engineered to protect your boiler’s heating system by relieving excess pressure when levels exceed safe operating limits. Designed to meet rigorous OEM standards, this valve ensures reliable pressure control, longevity, and peace of mind in everyday use. It delivers smooth, responsive pressure relief to help safeguard internal boiler components and maintain consistent performance.

This safety relief valve is ideal for professional servicing, maintenance work, or repairs, restoring correct safety function and helping your boiler operate within its designed parameters. Its robust construction and precise calibration provide durable performance you can trust.

Compatibility includes Worcester Bosch Greenstar and RD series boilers that require a 3 bar safety relief valve.