Popular Cylinder
Popular Cylinder 3 Bar PRV 1/2 Fxf HRP0421
A 3 bar pressure relief valve with 1/2 inch female connections for Popular Cylinder cold water inlet controls.
£18.60
£15.50 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 3 Bar Prv 1/2 Fxf is a pressure relief valve for Popular Cylinder cold water inlet control assemblies. It relieves excess pressure from the cold water supply side of the cylinder, protecting the inlet control group and its associated fittings. The valve is rated at 3 bar and has 1/2 inch female connections.
Signs this part needs replacing
- Water discharging from the valve outlet or tundish when the system is at rest
- Continuous dripping or weeping from the discharge pipe
- Recurrent discharge during heating cycles, suggesting the valve is no longer holding its rating
- Scale or corrosion visible around the valve body or connections
Before you order
- Confirm the valve on the appliance is rated at 3 bar
- Check the connection size and thread type match the cold water inlet control assembly (1/2 inch female x female)
- Confirm the appliance is a Popular Cylinder unit with cold water inlet controls
- Check access and orientation at the valve position before ordering
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POPULAR CYLINDER SPARES Cold Water Inlet Controls | — | — | — |
Documents & drawings
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No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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