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Caleffi Multibloc 28mm 3/6 Bar Circlip Style PRV

Popular Cylinder

Caleffi Multibloc 28mm 3/6 Bar Circlip Style PRV

Caleffi Multibloc 28mm pressure reducing valve with 3 bar and 6 bar settings in circlip style, for Popular Cylinder cold water inlet controls.

Manufacturer part no.
HRP0547
Showing prices

£300.00

£250.00 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 Caleffi Multibloc is a 28mm pressure reducing valve (PRV) with selectable 3 bar and 6 bar settings, supplied in the circlip style. It forms part of the cold water inlet control group on Popular Cylinder appliances, regulating incoming supply pressure to the cylinder. The valve is fitted within the inlet control assembly rather than as a standalone unit.

Signs this part needs replacing

  • Outlet pressure drifts and will not hold at the set value
  • Water weeping or discharging from the valve body
  • Reduced or intermittent flow at hot water outlets
  • Knocking or noise through the inlet control group
  • The valve no longer responds to pressure adjustment

Before you order

  • Confirm the connection is 28mm and matches the existing pipework
  • Check which pressure setting the installation requires, 3 bar or 6 bar
  • Confirm the existing valve is the circlip style
  • Verify the appliance is a Popular Cylinder with cold water inlet controls

Not sure which part?

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