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Hamworthy Reliance 1" Pressure/Temperature Relief Valve 531905004

Hamworthy

Hamworthy Reliance 1" Pressure/Temperature Relief Valve 531905004

Hamworthy 531905004 Reliance 1" pressure and temperature relief valve (PTEM) for Hamworthy heating appliances.

At a glance

  • Also known as 2061406
Manufacturer part no.
531905004
Showing prices

£575.03

£479.19 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 Hamworthy 531905004 is a Reliance 1" pressure and temperature relief valve, designated PTEM. It is fitted to Hamworthy heating appliances and discharges water when system pressure or temperature rises above the valve's set limits, protecting the appliance and associated pipework. It is supplied as a Hamworthy spare part.

Signs this part needs replacing

  • Water weeping or dripping from the discharge pipe with the system at normal pressure and temperature
  • The valve fails to reseat after discharging, leaving a continuous drip
  • Scale, corrosion or debris visible around the valve seat or outlet
  • Discharge occurs during normal heating cycles without an overpressure or overheat event
  • System pressure drops repeatedly with no other visible leak on the installation

Before you order

  • Confirm the appliance model against the manufacturer's parts list
  • Check that the valve being replaced is a 1" PTEM pressure and temperature relief valve
  • Verify the part number 531905004 matches the valve currently fitted

Not sure which part?

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