Hamworthy O-Ring For PRV Connection 531299025

This is the Hamworthy O-ring for the pressure relief valve connection, supplied under part number 531299025. It is the seal that sits at the joint between the pressure relief valve and its connection on the appliance, preventing water escaping from the union. It is a small service part intended for use on Hamworthy floor standing boiler ranges.

• Water weeping or tracking from the pressure relief valve connection joint
• Staining, corrosion or limescale around the valve union
• The O-ring is hardened, flattened, cracked or swollen on inspection
• Persistent drips at the connection after the valve has been disturbed or reseated

• Confirm the appliance model against the fit list above before ordering
• Inspect the O-ring groove and seating face for scoring or damage that could prevent a seal
• Check whether the pressure relief valve itself is passing, as a failed valve will not be cured by a new O-ring
• Isolate the appliance and drain down as required before opening the connection