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Vaillant Pressure Relief Valve 190728

Vaillant

Vaillant Pressure Relief Valve 190728

Vaillant 190728 pressure relief valve, supplied complete, for Ecomax and VUW boiler models.

At a glance

  • Part type: pressure relief valve, complete
  • Also known as 1374081
Manufacturer part no.
190728
Showing prices

£40.58

£33.82 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 190728 is a complete pressure relief valve for Vaillant gas boilers. It is fitted to the Ecomax and VUW appliance families, where it discharges water from the heating circuit if system pressure rises above the set limit. The valve is supplied as a complete assembly.

Signs this part needs replacing

  • Water weeping or dripping from the discharge pipe when the system is cold and at normal pressure.
  • System pressure that will not hold and needs frequent topping up.
  • Visible scale, corrosion or debris around the valve outlet or seating.
  • The valve fails to discharge when system pressure rises above the normal operating range.
  • A discharge pipe that runs continuously after the boiler has been repressurised.

Before you order

  • Confirm the boiler model and GC number against the fitment list above.
  • Check the system pressure gauge reading and whether the discharge is continuous or intermittent.
  • Inspect the valve seating and outlet for scale or debris before deciding to replace.
  • Verify the system has been depressurised and isolated before removing the existing valve.

Not sure which part?

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