The Worcester Bosch 87161410540 Flow Regulator Type E-W is a genuine replacement hydraulic component engineered to control and stabilise water flow within your central heating system. By regulating an 8-litre flow rate, it helps maintain balanced circulation through radiators and the boiler’s heat exchanger, improving heating efficiency and reducing pump strain. Consistent flow regulation supports stable temperature delivery, quieter operation and helps protect internal components from undue stress caused by irregular water movement.

This flow regulator is compatible with Worcester Bosch Greenstar series boilers that specify part number 87161410540 for an 8-litre Type E-W flow control application. To ensure correct fitment and effective performance, always check the part number on your existing regulator or consult your boiler’s service documentation before installation, as flow regulator types and specifications vary between models and system configurations.

Supplied ready for direct replacement, the 87161410540 Flow Regulator installs into the existing pipework and integrates with original mounting points without modification. Choosing this genuine Worcester Bosch component helps restore correct flow characteristics in compatible Greenstar boilers, supporting reliable heating performance and efficient water circulation when carried out by a qualified engineer.