Worcester Greenstar Safety Valve 87186439890

This Worcester Spares Bosch Safety Valve is designed to control water or gas flow within compatible heating and hot water systems, helping to maintain dependable performance and support correct operation of the appliance. As a genuine replacement part, it is built to support efficient operation, long-term durability, and manufacturer-approved system protection across suitable Worcester Bosch boilers and components.

The valve relieves excess pressure in a closed system by opening proportionally, preventing potential malfunctions. It is compatible with multiple Worcester Bosch appliances, including Greenstar ErP, Compact models, and others that use the 87186439890 valve. This is a genuine Worcester product, supplied with the manufacturer’s guarantee.

Features

• Genuine Worcester product
• Model 87186439890
• Controls water or gas flow
• Relieves excess pressure proportionally
• Fits Greenstar ErP and Compact boilers
• Manufacturer guarantee