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Gledhill Primary Expansion Relief Valve XG154

Gledhill

Gledhill Primary Expansion Relief Valve XG154

Primary expansion relief valve for Gledhill Accolade and Boilermate A-Class thermal stores, part number XG154.

At a glance

  • Also known as 2000146
Manufacturer part no.
XG154
Showing prices

£40.98

£34.15 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Gledhill XG154 is a primary expansion relief valve used on Gledhill Accolade and Boilermate A-Class thermal stores. It opens to discharge excess pressure from the primary circuit, protecting the expansion vessel and associated components from over-pressurisation. This valve is listed for SP models.

Signs this part needs replacing

  • Water continually discharging or dripping from the relief valve outlet
  • System pressure repeatedly dropping or failing to hold
  • Valve weeping after it has operated, indicating it is not reseating
  • Scale or debris visible around the valve seat or outlet
  • Discharge pipe running warm or wet when the system is at normal pressure

Before you order

  • Confirm the appliance model and variant against the fit list above
  • Check whether your unit is an SP model, as this valve is listed for SP models only
  • Compare the valve body markings and connection size with the part being removed
  • Note the system pressure gauge reading before and after replacement

Not sure which part?

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