Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Popular Cylinder 4 Bar 15mm X 3/4'' T&P Relief Valve Long Probe HRP0177

Popular Cylinder

Popular Cylinder 4 Bar 15mm X 3/4'' T&P Relief Valve Long Probe HRP0177

A 4 bar T&P relief valve with 15mm x 3/4 inch connections and a long probe, for Popular Cylinder Spares cold water inlet controls.

Manufacturer part no.
HRP0177
Showing prices

£84.00

£70.00 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 4 Bar 15mm X 3/4'' T&P Relief Valve Long Probe is a temperature and pressure relief valve from Popular Cylinder. It is intended for Popular Cylinder Spares cold water inlet controls on cylinder installations. The valve provides a safety relief path at a 4 bar pressure rating, with 15mm x 3/4'' connections and a long probe.

Signs this part needs replacing

  • Water weeping or discharging from the valve outlet when the cylinder is not in a relief condition.
  • The valve does not reseat after a relief event and continues to drip.
  • Scale, debris or corrosion is visible around the valve seat or probe.
  • The valve does not open when tested, or relief occurs at a pressure other than the rated 4 bar.
  • The valve body or long probe is cracked, damaged or heavily corroded.

Before you order

  • Confirm the existing valve is a 4 bar T&P relief valve with 15mm x 3/4'' connections and a long probe.
  • Check the valve is listed for Popular Cylinder Spares Cold Water Inlet Controls.
  • Check the cylinder manufacturer's instructions and any applicable regulations before fitting.
  • Ensure the system is depressurised and drained 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.