The Baxi 248066 Diaphragm Pressure Differential Valve is a genuine Baxi replacement component designed to help regulate and monitor water flow differences within compatible boiler systems. This precision-engineered diaphragm works inside the pressure differential valve to respond to changes in supply and return pressures, supporting accurate flow detection and coordinated operation of the boiler’s pump and control systems. Built to Baxi’s exact quality and performance standards, it should be installed by a qualified heating engineer during servicing, maintenance, or when replacing a worn or faulty diaphragm to restore proper pressure differential function.

Compatibility for the 248066 diaphragm pressure differential valve includes Main Combi and Combi boiler models that utilise this specific diaphragm design within their pressure differential valve assembly. Always verify your boiler’s exact model and parts specification before installation to ensure correct fit and dependable performance.

Using a genuine Baxi diaphragm for the pressure differential valve helps maintain accurate flow sensing, supports efficient combustion and circulation sequencing, and contributes to the long-term reliable and safe operation of your central heating and hot water system.