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Vaillant Pressure Relief Valve 190751

Vaillant

Vaillant Pressure Relief Valve 190751

Pressure relief valve complete for Vaillant Ecomax 200 and VUW combi boilers, part number 190751.

At a glance

  • Appliance family: Ecomax 200, Ecomax 2E and VUW combi models
  • Also known as 1374084, N2081
Manufacturer part no.
190751
Showing prices

£117.41

£97.84 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 190751 is a complete pressure relief valve assembly for Vaillant Ecomax and VUW combi boilers. It opens to discharge excess pressure from the sealed heating circuit, protecting the boiler and system components from over-pressurisation. The valve is supplied as a complete assembly rather than a service kit.

Signs this part needs replacing

  • Water continually discharging from the pressure relief discharge pipe
  • System pressure rising when the boiler is not firing
  • Boiler pressure dropping after recharging, with no visible leak elsewhere
  • Valve passing water after the system has been topped up and bled
  • Scale or debris holding the valve seat open, causing a constant drip

Before you order

  • Confirm your boiler model against the fitment list above before ordering
  • Check that the existing valve is a complete assembly, not a serviceable cartridge
  • Verify the connection size and orientation match the valve being replaced
  • Inspect the discharge pipework, as a passing valve often leaves it scaled or blocked

Not sure which part?

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