The Worcester 87161083900 Expansion Vessel is a genuine replacement pressure vessel designed for use in Worcester Bosch Camray boilers. The expansion vessel plays a critical role in maintaining stable system pressure by absorbing the expansion of water as it heats, helping to protect the boiler and heating system from over-pressurisation and unnecessary strain.

Key features of this expansion vessel include robust steel construction for long service life, a factory-sealed internal diaphragm to safely manage pressure changes, and precise compatibility with Camray boiler models. Manufactured to original Worcester Bosch specifications, it ensures reliable pressure control and consistent system performance.

A failed or waterlogged expansion vessel can cause pressure fluctuations, frequent pressure relief valve discharge, system noise, or boiler lockouts. Replacing it with this genuine Worcester Bosch component restores correct pressure regulation and helps maintain safe, efficient boiler operation.

This expansion vessel is suitable for Worcester Bosch Camray boilers requiring part number 87161083900. Please confirm compatibility with your boiler model and existing vessel before installation, and ensure fitting is carried out by a qualified engineer.