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A fixed-speed pressure booster with pressure switch only.
The Grundfos CM-PS is a compact booster solution designed for domestic and light industrial use. The booster unit consists of a robust CM pump, 5-way valve and a pressure switch. To complete the booster system, a pressure tank must be fitted.
The pressure switch and pressure tank ensure a convenience water supply with a minimum start/stop frequency. The pump is suitable for above ground tanks. For self-priming solutions, see the Grundfos CMB-SP.
Components:
- CM pump with all parts in contact with the liquid constructed from stainless steel (AISI 304)
- 5-way tee with non-return valve
- Pre-fitted with pressure switch and pressure gauge
- Power cable – 1.5m length with plug
- Pressure tanks available separately, see related products.
| Model | Power (kW) | Outlet | Inlet | Rated Head (m) | Rated Flow (L/min) |
| CM-PS 5-56 | 1.3 | 1″ F | 1 1/4″ F | 46.5 | 78 |
| CM-PS 5-75 | 1.3 | 1″ F | 1 1/4″ F | 62.4 | 78 |
Recommended pressure tank sizes:
- CM1 >80L
- CM3 >200L
- CM5 >300L
- CM10 >450L
The performance of your Grundfos pump is reliant on selecting the right pump for the site conditions and situation. Our retail shop staff have many years of pump experience and are happy to help you select the right pump for your application. Please contact us for assistance.











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