Ideal Gasket 40Nb Table D 012745

The Ideal 012745 is a 40Nb Table D gasket from the Ideal commercial boiler spares range. It is a flat sealing gasket sized for 40mm nominal bore pipework joints, where it sits between mating flange faces and forms the seal. The part is listed under Ideal's gaskets, O-rings, seals and washers group and is used across the Ideal Commercial Concord Super Series appliance family.

• Weeping or a visible trace of water at the flanged joint while the appliance is running
• Damp staining, rust marking or mineral deposits around the pipe connection
• A gasket that has hardened, flattened or cracked once the joint is opened
• Repeated pressure loss traced back to the flange joint rather than the appliance itself
• A gasket that has swollen or distorted after prolonged exposure to heat and water

• Confirm the appliance model and serial number against the compatibility list before ordering.
• Check the joint size on the appliance: this gasket is intended for 40Nb Table D flanges.
• Cross-reference the alternative number 1170409 when working from older documentation or parts lists.
• Inspect the flange faces and fasteners while the joint is open, and replace the gasket as part of the same repair.