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SKU: 98117632
Grundfos CMB 5-56 Stainless Steel Automatic Pressure Boosting Pump for Irrigation Use with Pressure Switch
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
The Grundfos CMB 5-56 (PS) is an automatic pressure boosting pump system designed for irrigation systems, rural water distribution, and light commercial applications where minor leakage conditions may be present. The system includes a Grundfos CM pump, a five-way valve, and a pressure switch, enabling fully automatic operation based on system pressure.
Constructed with a stainless steel pump housing and multistage stainless steel impellers (AISI 304), the pump offers excellent corrosion resistance and durability. The integrated non-return valve ensures stable system pressure, while the modular booster configuration allows easy installation when paired with a pressure tank.
The pump operates at a rated flow of 4.7 m³/h. Based on the performance curve characteristics of this model, it delivers a maximum flow of approximately 100 L/min at low head conditions and achieves a maximum head of approximately 56 metres at shut-off. The unit is not self-priming and supports a maximum suction lift of 1 metre.
The unit is powered by a 0.9 kW electric motor operating on a 1 x 240 V, 50 Hz supply. The pressure switch provides adjustable control within a range of 1 to 5 bar, allowing flexible pressure management depending on system requirements. A pressure tank is required for complete system operation.
FEATURES- Automatic Booster Control: Pressure switch enables demand-based start and stop operation
- Adjustable Pressure Range: Operates within 1–5 bar for flexible system tuning
- Complete Booster Assembly: Includes pump, five-way valve, and pressure switch
- Tank-Compatible Design: Designed to operate with external pressure tanks
- Leakage Tolerant System: Suitable for installations with minor continuous leakage
- Multistage Hydraulic Performance: Ensures smooth and stable pressure delivery
- Corrosion-Resistant Construction: Stainless steel components enhance durability
- Integrated Non-Return Valve: Prevents backflow and maintains system pressure
- Compact Installation Layout: Simplifies integration into existing systems
- Low Maintenance Design: Mechanical control system reduces complexity
SPECIFICATIONS
| Max Flow | 100 L/Min |
| Max Head | 55 m |
| Power | 1.3 kW / 240v |
| Rated Current | 8.7 Amps |
| Suitable For | Irrigation Systems |
| Body Material | Stainless Steel |
| Liquid Temperature | Maximum 60°C |
| Inlet Size | 32 mm |
| Outlet Size | 25 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
How much water flow and dynamic pressure can this pump generate?
For balanced pressure and flow, the Grundfos CMB 5-56 provides up to 100 L/Min in delivery and up to 55 m in vertical lift.
What electrical supply parameters are needed for this pump motor?
It operates on 240v power, with the CMB 5-56 utilizing a durable 1.3 kW motor rated at 8.7 Amps.
Which casing and impeller materials provide long service life in this pump?
Wetted components on the CMB-5-56 are crafted from high-grade Stainless Steel to maintain physical integrity and resist abrasive wear.
What primary water management tasks is this pump best suited for?
Everyday water management duties for the CMB 5 56 focus on domestic water boosting from rainwater storage tanks and municipal mains supply lines, providing reliable pumping performance.
What official warranty duration comes with this pump from purchase?
Official factory backing for the CMB/5/56 includes an authentic 2 Years warranty for verified quality and peace of mind.
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