{"product_id":"calpeda-bs2f-2mxh-1605-three-phase-2-x-4kw-fixed-speed-twin-pump-multistage-booster-system","title":"Calpeda BS2F 2MXH 1605 Three Phase 2 x 4kW Fixed Speed Twin Pump Multistage Booster System","description":"\u003cp\u003eCommercial 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.\u003c\/p\u003e\u003cp\u003eAutomated 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.\u003c\/p\u003e\u003cp\u003eRust-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.\u003c\/p\u003e\u003cp\u003eElectrical 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTwin Multistage Hydraulics: Pairs two horizontal 5-stage stainless steel pumps to maintain strong pressure across medium-to-high building elevations.\u003c\/li\u003e\n\u003cli\u003eIntelligent Cascade Control: Microprocessor board and differential pressure switches coordinate lead and lag pump activation seamlessly.\u003c\/li\u003e\n\u003cli\u003eAutomatic Duty Rotation: Alternates the starting sequence between both pumps to balance runtime hours and extend seal longevity.\u003c\/li\u003e\n\u003cli\u003eHygienic Manifold Construction: Fabricated from AISI 304 stainless steel across both headers to preserve potable water purity and resist internal scaling.\u003c\/li\u003e\n\u003cli\u003eServiceable Valve Arrangement: Individual isolation ball valves and check valves allow technicians to service one pump while the partner stays online.\u003c\/li\u003e\n\u003cli\u003eBroad Thermal Capability: Handles chilled and heated water applications safely across a liquid temperature spectrum of -15 °C to +110 °C.\u003c\/li\u003e\n\u003cli\u003eIndustrial Enclosure Protection: Motor and electrical housings are sealed to IP54 standards to guard internal components against plant-room dust and splashing water.\u003c\/li\u003e\n\u003cli\u003eComplete Factory Testing: Delivered pre-wired, hydrostatically tested, and backed by a comprehensive 24 Months manufacturer warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2 x Calpeda MXH 1605 horizontal multistage pumps\u003c\/li\u003e\n\u003cli\u003eStainless steel AISI 304 suction manifold\u003c\/li\u003e\n\u003cli\u003eStainless steel AISI 304 delivery manifold\u003c\/li\u003e\n\u003cli\u003eIsolation ball valves\u003c\/li\u003e\n\u003cli\u003eNon-return valves\u003c\/li\u003e\n\u003cli\u003eMicroprocessor control board with differential pressure switches\u003c\/li\u003e\n\u003cli\u003eSystem pressure gauge\u003c\/li\u003e\n\u003cli\u003eFactory assembled and tested boosting plant\u003c\/li\u003e\n\u003cli\u003eSupports a 1000 L galvanised diaphragm expansion tank\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":51423235178743,"sku":"BS2F 2MXH 1605*","price":22938.3,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-bs2f-2mxh-1605-three-phase-2-x-4kw-fixed-speed-twin-pump-multistage-booster-system.png?v=1793070877","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-bs2f-2mxh-1605-three-phase-2-x-4kw-fixed-speed-twin-pump-multistage-booster-system","provider":"Foundation Pumps","version":"1.0","type":"link"}