The Baxi 5132534 Gas Valve (SIT Sigma 848) is a genuine replacement fuel control component engineered to regulate the flow of gas into your boiler’s burner assembly. This precision-built valve ensures the correct amount of fuel is delivered under varying load demands, supporting stable ignition, efficient combustion and accurate heat output. Integrated safety shut-off features help protect against unsafe gas delivery by stopping fuel flow in the event of a fault, contributing to secure and dependable operation.

This gas valve is compatible with Baxi boilers that use SIT Sigma 848 gas control valves and specify part number 5132534 in their technical documentation. Always verify that the number on your existing valve matches before installation, as gas control components and connection formats vary between models and system types.

Supplied ready for direct replacement, the 5132534 Gas Valve integrates with the boiler’s gas inlet, control wiring and mounting points when installed by a qualified Gas Safe engineer. Choosing this genuine Baxi component helps restore proper gas regulation, improve combustion stability and support reliable heating performance in compatible boilers.