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SKU: BS2F 2MXH 1605*
Calpeda BS2F 2MXH 1605 Three Phase 2 x 4kW Fixed Speed Twin Pump Multistage Booster System
Australia-Wide
(08) 9240 2992
Official Calpeda
Peace of Mind
Product Overview
Commercial plumbing and multi-storey water circuits frequently encounter steep pressure drops during peak occupancy hours. Engineered to resolve these hydraulic challenges, the Calpeda BS2F 2MXH 1605 twin booster set combines two horizontal multistage MXH 1605 pumps on a unified baseplate. During peak demand, this dual-pump assembly delivers flow rates up to 833.4 L/Min for hotels, apartment blocks, and industrial facilities. For vertical risers and pressurised mains, the multistage pumps can develop up to 57.5 m of head.
Automated staging is governed by differential pressure switches paired with a dedicated microprocessor control board. Rather than running both units continuously, the controller monitors line pressure and starts the lead pump first, calling upon the lag unit only when downstream consumption climbs. Built-in duty alternation rotates the primary assignment after every cycle to equalise mechanical wear, while calibrated anti-cycling logic prevents rapid motor restarts during minor pressure fluctuations.
Rust-impervious stainless steel AISI 304 suction and delivery manifolds form the structural backbone of the fluid path. Raw water enters through an 80 mm suction header and exits via a 65 mm discharge manifold, each branch outfitted with full-bore isolation ball valves and non-return check valves for straightforward maintenance. A factory-fitted pressure gauge provides immediate visual verification, complemented by a pre-configured port ready to accept an external diaphragm expansion vessel.
Electrical propulsion relies on a standard three-phase 415 V site supply connected to heavy-duty motors wound for three-phase 400/690 V operation. Each 2-pole induction drive spins at approximately 2900 rpm on a 50 Hz network, delivering 4 kW (P2) of shaft power while drawing a rated current of 5.5 A per pump. Manufactured to IEC 60034 specifications with Class F thermal insulation, the motors sustain continuous commercial duty without overheating.
Key Features
- Twin Multistage Hydraulics: Pairs two horizontal 5-stage stainless steel pumps to maintain strong pressure across medium-to-high building elevations.
- Intelligent Cascade Control: Microprocessor board and differential pressure switches coordinate lead and lag pump activation seamlessly.
- Automatic Duty Rotation: Alternates the starting sequence between both pumps to balance runtime hours and extend seal longevity.
- Hygienic Manifold Construction: Fabricated from AISI 304 stainless steel across both headers to preserve potable water purity and resist internal scaling.
- Serviceable Valve Arrangement: Individual isolation ball valves and check valves allow technicians to service one pump while the partner stays online.
- Broad Thermal Capability: Handles chilled and heated water applications safely across a liquid temperature spectrum of -15 °C to +110 °C.
- Industrial Enclosure Protection: Motor and electrical housings are sealed to IP54 standards to guard internal components against plant-room dust and splashing water.
- Complete Factory Testing: Delivered pre-wired, hydrostatically tested, and backed by a comprehensive 24 Months manufacturer warranty.
What's Included
- 2 x Calpeda MXH 1605 horizontal multistage pumps
- Stainless steel AISI 304 suction manifold
- Stainless steel AISI 304 delivery manifold
- Isolation ball valves
- Non-return valves
- Microprocessor control board with differential pressure switches
- System pressure gauge
- Factory assembled and tested boosting plant
- Supports a 1000 L galvanised diaphragm expansion tank
SPECIFICATIONS
| Max Flow | 833 L/Min |
| Max Head | 57.5 m |
| Power | 2 x 4 kW / 415v |
| Rated Current | 2 x 5.5 Amps |
| Suitable For | Industrial & Commercial Pressure Boosting |
| Body Material | 304 Stainless Steel |
| Liquid Temperature | -15 °C to +110 °C |
| Inlet Size | 80 mm |
| Outlet Size | 65 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 extensive is the factory warranty coverage on this dual pump booster assembly?
Manufacturer warranty backing for the Calpeda Fixed Speed Booster Set BS2F 2MXH 1605 covers both stainless pump wet ends, dual motors, and the sequencing board against defects from date of invoice.
What peak water discharge rate and maximum flow capacity does this package supply?
Operating with automated duty assist logic, the BS2F 2MXH 1605 generates a collective peak throughput of 833.4 L/min (50 m³/h) for intensive site demands.
Which electrical power mains and automated motor control board regulate this booster set?
Coordinated by an alternating sequencing console, the BS2F-2MXH-1605 utilizes twin three phase 400V motors delivering a combined 8 kW output.
Under what maximum static head elevation and line pressure limits does this package operate?
Hydraulic pressure testing certifies the BS2F 2 MXH 1605 for up to 57.5 metres of elevation head and a maximum casing pressure of 8 bar across -15°C to +110°C.
What corrosion proof wetted metallurgy and manifold connection thread sizes are incorporated?
Manufactured with AISI 304 chromium-nickel stainless steel wetted components, the 2MXH 1605 (BS2F 2MXH 1605) is mounted on a Zinc-plated Steel S235JR baseplate and fitted with isolating ball valves, non-return valves, and G 3 suction with G 2 1/2 delivery manifolds.
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