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Caleffi Multibloc 3/6 Bar Nut Style PRV
Caleffi Multibloc 3/6 bar nut style pressure reducing valve for unvented cylinders.
£92.40
£77.00 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Caleffi Multibloc 3/6 Bar (Nut Style PRV) is a cold water inlet control valve for unvented cylinders. It combines a pressure reducing valve with a nut-style connection to regulate incoming mains pressure. This protects the cylinder and its associated components from excessive pressure.
Signs this part needs replacing
- Fluctuating or excessively high water pressure at hot water taps
- Water discharging from the cylinder's pressure relief valve
- Noisy operation or water hammer when taps are opened
- Leaks from the valve body or connections
- Reduced flow rate at outlets
Before you order
- Check your cylinder model against the fit list above
- Confirm the existing valve has a nut-style connection
- Verify the required pressure setting for your cylinder (3/6 bar)
- Ensure the part matches your existing component
Compliance
| Alternative numbers | HRP0183 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALBION Stainless Unvented Cylinder | — | — | — | |
| ALLBRITE Solar Unvented | — | — | — | |
| BIASI Hydras Unvented | — | — | — | |
| CASTLE Stainless Steel | — | — | — | |
| COPPERFORM Ultrasteel Cylinder | — | — | — | |
| CROWN Endurance Stainless Steel | — | — | — | |
| ELECTRIC HEATING COMPANY Neptune | — | — | — | |
| EVERFLO Everflo Stainless 300 Litre | — | — | — | |
| FERROLI Aquacyl | — | — | — | |
| GAH Thermecon Dualstream | — | — | — |
Showing 10 of 123 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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