The Worcester Bosch 87161424040 Pressure Relief Valve is a genuine safety component designed to protect your boiler’s central heating and domestic hot-water circuits from excessive pressure. If system pressure rises above safe limits due to heating expansion or blockage, this valve automatically releases a controlled amount of water to lower pressure and safeguard internal parts such as pipework, seals, pumps and the heat exchanger. Proper pressure relief helps reduce the risk of leaks, component stress and nuisance fault lockouts, supporting safe and reliable operation.

This pressure relief valve is compatible with Worcester Bosch CDi and Junior series boilers that specify part number 87161424040 in their technical documentation. To ensure correct fitment and dependable performance, always verify that the part number matches your existing valve or consult your boiler’s service information before installation, as relief valves and pressure ratings vary between models and system configurations.

Supplied ready for direct replacement, the 87161424040 Pressure Relief Valve connects to the boiler’s designated safety outlet and integrates with the system’s pipework when installed by a qualified engineer. Choosing this genuine Worcester Bosch component helps maintain proper pressure control, protect your heating system and contribute to consistent, trouble-free performance in compatible CDi and Junior boilers.