
Popular Cylinder
Popular Cylinder Spares RWC 8 Bar Pressure Relief Manifold (Old Type) HRP0347
8 bar pressure relief manifold (old type) for Popular Cylinder cold water inlet controls on unvented cylinders.
£79.20
£66.00 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 RWC 8 bar pressure relief manifold is an old-type cold water inlet control component manufactured by Popular Cylinder Spares. It forms part of the cold water inlet control group on unvented cylinders, providing the 8 bar pressure relief function that protects the cylinder from over-pressure. It is supplied as a manifold assembly for the older inlet control arrangement.
Signs this part needs replacing
- Water discharging from the pressure relief outlet when the cylinder is not overheating
- Continuous dripping from the tundish with no expansion or heating demand
- The relief valve failing to reseat after operating
- Scale or debris preventing the valve from sealing correctly
- Visible damage, corrosion or weeping at the manifold body or connections
Before you order
- Confirm your cylinder model against the fitment list above
- Check whether your cylinder uses the old-type inlet control arrangement, as this manifold is the old type
- Inspect the existing manifold for the 8 bar rating and connection layout before removal
- Verify the fault lies with the manifold rather than the expansion arrangement or cylinder thermostat
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HEATRAE SADIA Megaflo (Internal Expansion) | — | — | — | |
| OSO 20 RD | — | — | — | |
| POPULAR CYLINDER SPARES Cold Water Inlet Controls | — | — | — |
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.
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