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Alpha Gas Valve Seal Kit 3.018595

Alpha

Alpha Gas Valve Seal Kit 3.018595

Alpha gas valve seal kit 3.018595 with seals, gaskets, washers and O-rings for Alpha CD series boilers.

At a glance

  • Part type: Gaskets, Seals & Washers
  • Also known as 1257955
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
3.018595
Showing prices

£47.39

£39.49 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
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Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Alpha gas valve seal kit 3.018595 is a complete set of seals, gaskets, washers and O-rings intended for the gas valve assembly on Alpha CD boilers. Seals of this type are used at the joints where components meet pipework, including the gas valve and heat exchanger, to keep gas and water contained. The kit is supplied by Alpha as a service item for engineers working on the CD range.

Signs this part needs replacing

  • A gas smell or a failed gas tightness test traced to the gas valve joints
  • Visible water weeping or staining around the gas valve or heat exchanger connections
  • Seals that have hardened, flattened, cracked or perished with age
  • Reassembly work on the gas valve where the original seals cannot be reused
  • Repeated pressure loss or moisture at a joint that has previously been disturbed

Before you order

  • Check the GC number on the appliance data badge against the compatibility list to confirm the kit suits your model
  • Confirm the part number 3.018595 or one of the alternative numbers 1257955 or 018595 matches the item being replaced
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.