Ideal Silicon Seal 100mm Blue 176574

The Ideal 176574 is a blue silicon seal with a 100mm nominal size, supplied by Ideal for use across a range of its domestic boiler models. It forms part of the gaskets, seals and washers group of spares and sits at a joint or connection where an airtight, watertight face is needed. Its job is to close that joint securely so the appliance continues to run without weeping or drawing air at the sealing point.

• Water or condensate weeping from around the joint the seal sits in
• Visible hardening, flattening or cracking of the seal material
• Blue seal showing distortion, splitting or a compressed, set profile
• Traces of scale or staining running from the sealing face
• Leak returns after the joint has been re-tightened, pointing to a perished seal

• Check the model and GC number of the appliance against the compatibility list before ordering, as the same seal is used across several Ideal ranges.
• Confirm the part number on the existing component or in the appliance documentation matches 176574 or the alternative number 1781932.
• If the seal is being replaced as part of a strip-down, check whether any other gaskets or washers on the same joint also need renewing.
• Work on the appliance should be carried out by a competent person, and any gas-carrying joint must be re-made and tested in line with current regulations.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.