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Vaillant Pressure Relief Valve 0020127214

Vaillant

Vaillant Pressure Relief Valve 0020127214

Pressure relief valve, part 0020127214, for Vaillant geoTHERM VWL 45/1, 65/1 and 75/1 A 230V heat pumps.

At a glance

  • Part type: pressure relief valve
  • Appliance family: geoTHERM VWL air-to-water heat pump
  • Also known as 1385191
Manufacturer part no.
0020127214
Showing prices

£102.22

£85.18 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 Vaillant 0020127214 is a pressure relief valve used on Vaillant geoTHERM VWL air-to-water heat pump units. It opens to discharge water when system pressure rises above the valve's set point, protecting the appliance and its pipework from over-pressurisation. It is listed by the manufacturer for the VWL 45/1, 65/1 and 75/1 A 230V models.

Signs this part needs replacing

  • Water continually weeping or running from the valve discharge pipe when the system is at normal pressure
  • System pressure repeatedly dropping and needing topping up
  • The valve failing to reseat after it has lifted, leaving a persistent drip
  • Scale, sludge or debris holding the valve seat open
  • Visible corrosion, cracking or deformation around the valve body or outlet

Before you order

  • Confirm the appliance model on the data plate matches one of the VWL 45/1, 65/1 or 75/1 A 230V units listed above
  • Check the existing valve against the part number 0020127214 before ordering
  • Inspect the discharge pipework for blockages, as a restricted outlet can cause the valve to weep
  • Isolate and depressurise the appliance before removal and fitting

Not sure which part?

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