Grant
Grant Pressure Reducing Valve Manifold GCS07
Pressure reducing valve manifold for Grant DuoWave HP and MonoWave HP unvented cylinders, part GCS07.
£99.65
£83.04 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 Grant Pressure Reducing Valve Manifold, part GCS07, is a manifold assembly used on Grant unvented hot water cylinders. It regulates the incoming mains water pressure supplied to the cylinder and forms part of the cylinder's inlet control group. The manifold is supplied by Grant for use across the DuoWave HP and MonoWave HP cylinder ranges.
Signs this part needs replacing
- Higher than expected water pressure at the cylinder inlet or at hot water outlets
- Water discharging from the cylinder pressure relief valve through the tundish
- Water hammer or noisy pipework when taps or valves are operated
- Visible leaks, scale build-up or corrosion around the valve body or manifold connections
- Reduced hot water flow at outlets fed by the cylinder
Before you order
- Confirm the cylinder model and range, as the manifold is listed against specific DuoWave HP and MonoWave HP sizes
- Inspect the existing manifold and its connections to confirm the correct assembly is being replaced
- Quote part number GCS07 when ordering
- Ensure the cylinder is depressurised and isolated before any work begins
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GRANT DuoWave HP Direct 170 Litre | — | — | — | |
| GRANT DuoWave HP Direct 200 Litre | — | — | — | |
| GRANT DuoWave HP Direct 250 Litre | — | — | — | |
| GRANT DuoWave HP Direct 300 Litre | — | — | — | |
| GRANT DuoWave HP Direct 400 Litre | — | — | — | |
| GRANT DuoWave HP Direct 500 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 170 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 200 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 250 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 300 Litre | — | — | — |
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Documents & drawings
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