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Popular Cylinder 8 Bar PRV for Multibloc (New Style) HRP0442

Popular Cylinder

Popular Cylinder 8 Bar PRV for Multibloc (New Style) HRP0442

An 8 bar pressure relief valve for the Multibloc cold water inlet control on Popular Cylinder unvented cylinders.

Manufacturer part no.
HRP0442
Showing prices

£66.00

£55.00 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

An 8 bar pressure relief valve for the Multibloc cold water inlet control fitted to Popular Cylinder unvented cylinders. It relieves excess pressure from the cold water inlet side of the cylinder, discharging through the tundish and discharge pipework. This is the new style Multibloc version.

Signs this part needs replacing

  • Water passing continuously through the tundish with no demand on the system
  • Dripping or weeping from the valve outlet when the cylinder is up to pressure
  • System pressure that will not hold steady, with repeated top-ups required
  • Scale or debris preventing the valve from reseating after a discharge

Before you order

  • Confirm the cylinder requires an 8 bar relief valve for the inlet control group
  • Check the inlet control is the new style Multibloc version
  • Verify the existing valve is fitted to the cold water inlet control assembly

Not sure which part?

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