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Gledhill CA Backflow Prevention Valve XB390

Gledhill

Gledhill CA Backflow Prevention Valve XB390

Gledhill CA backflow prevention valve, part XB390, for Electramate 2000 and Gulfstream 2000 water heaters.

At a glance

  • Also known as 2000136
Manufacturer part no.
XB390
Showing prices

£130.90

£109.08 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 CA backflow prevention valve (part number XB390) is a safety component fitted to Gledhill Electramate 2000 and Gulfstream 2000 water heaters. Its function is to stop water flowing back out of the appliance into the incoming mains supply. The valve is identified by the supplied product name CA BACKFLOW PREVENTION VALVE and is listed under Gledhill water heater spares.

Signs this part needs replacing

  • Visible backflow, with water running back through the valve towards the supply
  • Dripping or leaking from the valve body or its connections
  • Reduced or irregular water flow from the appliance
  • Scale, debris or physical damage visible inside the valve
  • A backflow check or service test that the valve fails

Before you order

  • Confirm your appliance is one of the Electramate 2000 or Gulfstream 2000 models in the Fits list
  • Check the existing valve is marked XB390 before ordering
  • Isolate the water supply and drain the appliance before removing the old valve
  • Confirm the valve is accessible as a separate part on your unit rather than part of a sealed assembly

Not sure which part?

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