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Popular Cylinder 7 Bar 22mm x 3/4" T&P Relief Valve

Popular Cylinder

Popular Cylinder 7 Bar 22mm x 3/4" T&P Relief Valve

7 bar temperature and pressure relief valve with 22mm and 3/4" connections for Popular Cylinder Spares cold water inlet controls.

Manufacturer part no.
HRP0179
Showing prices

£76.80

£64.00 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 7 Bar 22mm x 3/4" T&P relief valve is a temperature and pressure safety valve used on Popular Cylinder Spares cold water inlet controls. It discharges water if the cylinder's temperature or pressure rises beyond safe limits, protecting the cylinder and connected pipework from over-pressurisation.

Signs this part needs replacing

  • Water discharging from the tundish when the system is at normal temperature and pressure
  • The valve weeps or drips continuously
  • The valve fails to reseat after a discharge
  • Scale or corrosion is visible around the valve body or seat
  • No discharge during a manual test, suggesting the valve has seized

Before you order

  • Confirm the cylinder requires a 7 bar relief valve rating
  • Check the existing valve connections are 22mm and 3/4"
  • Verify your cylinder model against the manufacturer's parts list
  • Check the discharge pipework and tundish are clear before fitting

Not sure which part?

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