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Popular Cylinder Watts 7 Bar 3/4 MXF TPRV

Popular Cylinder

Popular Cylinder Watts 7 Bar 3/4 MXF TPRV

7 bar temperature and pressure relief valve with 3/4 MXF connections, listed for Popular Cylinder cold water inlet controls.

Manufacturer part no.
HRP0538
Showing prices

£25.50

£21.25 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 Watts 7 Bar 3/4 MXF TPRV is a temperature and pressure relief valve supplied for Popular Cylinder appliances and listed under the Popular Cylinder Spares cold water inlet controls group. It opens and discharges water when the cylinder's temperature or pressure exceeds the valve's 7 bar rating, protecting the cylinder and the surrounding installation from over-pressure or over-temperature conditions.

Signs this part needs replacing

  • Water running continuously from the valve outlet or discharge pipework with the cylinder at normal temperature and pressure
  • Dripping from the outlet when the cylinder is cold and no heat has been applied
  • Water weeping from around the valve body or its threaded connections
  • The valve fails to reseat after a temperature or pressure event, leaving the discharge running
  • Scale or debris visible at the outlet, or the valve sticking when tested

Before you order

  • Confirm the 7 bar rating matches the requirements of the cylinder and its installation instructions
  • Confirm the connection size and thread form (3/4 MXF) against the existing valve
  • Check the discharge pipework, tundish and termination are in place and correctly sized before fitting
  • Check the cylinder model to confirm the valve is the correct item for that unit

Not sure which part?

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