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SKU: 1M1V20-7M-18
Davey Monsoon VM20-7 Single Phase 7.5kW Variable Speed Booster Pump Set with 18L Tank
Australia-Wide
(08) 9240 2992
Official Davey
Peace of Mind
Product Overview
Designed for rapid plant room installation, the pre-plumbed Davey Monsoon single pump variable speed booster system solves fluctuating municipal mains pressure. Equipped with a vertical multistage pump assembly, the unit sustains line pressure stability across demanding plumbing lines. This packaged assembly supplies an integrated booster solution to prevent pressure dropouts across elevated risers.
Under full-load facility testing, the multistage wet end sustains peak output up to 483 L/min. Across elevated vertical distribution lines, the multistage hydraulic wet end generates up to 99.3 metres of maximum shut-off head to overcome static elevation losses. Internal impellers and intermediate stage diffusers are manufactured from AISI 304 stainless steel to maintain fluid purity and hydraulic efficiency. A hard-faced mechanical seal and reinforced casing construction support operating system pressures up to 16 bar.
Mechanical rotation is powered by an electric motor engineered for variable speed frequency modulation. Speed regulation is governed by an integrated variable frequency drive controller, continuously matching motor speed to instantaneous draw to stabilize pipeline pressure. The electrical package connects to a 240V supply at 50 Hz drawing a rated current of 43.9 Amps. Pre-plumbed hydraulic connections feature standardized 2" BSP ports, rated for clean liquid operating temperatures from 0°C to 40°C.
The entire pumping system is pre-assembled on a rugged structural steel mounting frame. Integrated elastomeric mounts isolate pump vibrations, protecting connected distribution pipework from mechanical stress and acoustic transmission. Engineered and assembled to meet demanding Australasian commercial plumbing standards, the system benefits from comprehensive Davey technical support and readily available nationwide spare parts.
FEATURES
- Electrical supply rating of 240V at 50 Hz
- Peak volumetric clean water delivery flow up to 483 L/min
- Maximum vertical delivery shut-off head up to 99.3 metres
- Rated full load electrical current draw of 43.9 Amps
- Factory-fitted 18L diaphragm pressure tank to absorb hydraulic shock
- Vertical multistage Davey VM20-7 pump wet end featuring 7 stages
- Integrated variable speed inverter drive modulating speed to maintain constant line pressure
- Maximum casing operating pressure rating of 16 bar
- Pre-plumbed suction and delivery manifolds with standardized 2" BSP pipe connections
- Wetted internal components precision crafted from AISI 304 stainless steel
- Permissible clean liquid operating temperature range from 0°C to 40°C
- Backed by Davey 5-year pump end warranty and 2-year inverter drive warranty
What's Included
- Davey 1M1V Commercial Packaged Booster Skid
- 1 x Davey VM20-7 Vertical Multistage Pump with Variable Frequency Drive
- 1 x Factory-Mounted 18L Diaphragm Pressure Vessel
- Suction and Delivery Manifolds with Standardized 2" BSP Connections
- Individual Isolation Ball Valves and Spring-Loaded Non-Return Check Valves
- Factory-Calibrated Digital Pressure Transducer and Visual Pressure Gauge
- Rigid Structural Steel Mounting Baseplate Frame
- Comprehensive Manufacturer Technical Manual and Installation Guide
SPECIFICATIONS
| Max Flow | 483 L/Min |
| Max Head | 99 m |
| Power | 7.5 kW / 240v |
| Rated Current | 43.9 Amps |
| Suitable For | Large Campus & High-Rise Building Water Supply |
| Body Material | 304 Stainless Steel |
| Liquid Temperature | -15°C to +120°C |
| Inlet Size | 50 mm |
| Outlet Size | 50 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.
Could you summarize the motor propulsion and variable speed inverter fitted to this unit?
Automated speed regulation on the Davey Monsoon VM20-7 Single Phase 7.5kW Variable Speed Booster Pump Set with 18L Tank utilizes Single Phase 240V electrical mains at 50 Hz, powering a 7.5 kW motor drawing 43.9 Amps under integrated variable speed inverter control.
What shut off head elevation and maximum casing pressure rating apply to this unit?
Developing up to 99.3 metres of maximum static head, the 1M1V20-7M-18 sustains casing pressures up to PN25 (25 bar) across fluid temperatures up to 90 deg C.
Which construction materials, hydraulic connection sizes, and pressure vessel are standard?
Wetted construction on the 1M1V-20-7M-18 combines 304 stainless steel hydraulic components seated on a mounting chassis, linked by DN50 (50 mm) flanged ports and an 18L 16bar expansion tank.
Which warranty terms cover the pump wet end and variable frequency inverter?
Warranty protection supporting the 1M1V 20 7M 18 encompasses official Davey coverage including 2 years on both the pump wet end and the variable speed drive unit against manufacturing defects.
What maximum fluid delivery volume can this multistage pump package maintain?
To satisfy heavy site water demand, the VM20-7 (1M1V20-7M-18) provides up to 483 L/min (29.0 m3/h) modulated by electronic frequency control.
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