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Popular Cylinder 3 Bar PRV for Multibloc (New Style) HRP0438

Popular Cylinder

Popular Cylinder 3 Bar PRV for Multibloc (New Style) HRP0438

3 bar pressure relief valve for the new style multibloc cold water inlet control on Popular Cylinder appliances.

Manufacturer part no.
HRP0438
Showing prices

£55.84

£46.53 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

This is a 3 bar pressure relief valve intended for the new style multibloc assembly. It is a Popular Cylinder spare, listed within the Cold Water Inlet Controls range for cylinder installations. The valve relieves excess pressure from the cold water inlet side of the multibloc, protecting the cylinder and its associated fittings.

Signs this part needs replacing

  • Water weeping or discharging continuously from the relief outlet
  • Pressure relief valve failing to reseat after operating
  • Visible scale, corrosion or debris around the valve seat
  • Repeated discharge from the cold water inlet side of the multibloc
  • Difficulty restoring system pressure after the valve has lifted

Before you order

  • Confirm the multibloc on the appliance is the new style, as this valve is listed for that variant
  • Check the existing valve is rated at 3 bar
  • Identify the multibloc assembly and inlet control arrangement on the cylinder before ordering
  • Retain the old valve for comparison of the seating and connection arrangement

Not sure which part?

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