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Caleffi Multibloc 3.5/6 Bar 9

Popular Cylinder

Caleffi Multibloc 3.5/6 Bar 9

Caleffi Multibloc 3.5/6 bar cold water inlet control valve for Popular Cylinder spares, supplied as 1 piece.

Manufacturer part no.
HRP0515
Showing prices

£156.00

£130.00 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 3.5/6 Bar 9 is a cold water inlet control valve used on unvented hot water cylinders. It sits within the cold water inlet controls group on Popular Cylinder spares assemblies, controlling the incoming mains supply at the cylinder inlet. Supplied as 1 piece.

Signs this part needs replacing

  • Reduced or no cold water flow into the cylinder
  • Water discharging from the cylinder pressure or expansion relief valve
  • Persistent noise or vibration from the inlet control group
  • Water weeping from the valve body or its connections
  • Inlet pressure at the cylinder drifting away from the marked 3.5/6 bar settings

Before you order

  • Confirm the existing valve is marked 3.5/6 bar
  • Check the cylinder make and model against the fitment list
  • Check the connection sizes and orientation on the existing inlet control group
  • Confirm whether the complete valve or only an internal cartridge needs replacing

Not sure which part?

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