{"product_id":"calpeda-bs2f-2mxhl-403-three-phase-2-x-0-55kw-fixed-speed-twin-pump-multistage-booster-system","title":"Calpeda BS2F 2MXHL 403 Three Phase 2 x 0.55kW Fixed Speed Twin Pump Multistage Booster System","description":"\u003cp\u003eMaintaining consistent hot and cold water delivery across apartment buildings and commercial amenities requires a dependable twin-pump booster assembly. Built around two horizontal multistage Calpeda MXHL 403 units, the BS2F 2MXHL 403 package supplies full-load flow rates up to 266.6 L\/Min. Where vertical lift is required, the multistage hydraulics can develop up to 30 m of head. This dual-unit layout shares peak hydraulic loads and preserves uninterrupted building service whenever one pump is isolated for routine inspection.\u003c\/p\u003e\u003cp\u003eAutomated demand management relies on differential pressure switches paired with an integrated microprocessor control board. Rather than running both pumps continuously, the controller monitors line pressure and engages the lead unit first, bringing the lag pump online only during elevated draw-off periods. Automatic duty alternation swaps the starting sequence between cycles to equalise mechanical wear, while calibrated anti-cycling logic prevents rapid motor hunting during minor fixture leaks.\u003c\/p\u003e\u003cp\u003eHydraulic pipework centres on corrosion-resistant stainless steel AISI 304 manifolds engineered for low friction losses and clean water compatibility. Incoming supply enters through a 50 mm suction header and exits via a 40 mm delivery manifold, with dedicated isolation ball valves and non-return check valves fitted to each pump branch. A clear system pressure gauge and a pre-fitted external expansion tank tee simplify on-site commissioning and pressure verification.\u003c\/p\u003e\u003cp\u003eElectrical operation is configured for an Australian three-phase 415 V mains supply feeding motors rated at three-phase 230\/400 V. Each 2-pole induction drive spins at a nominal 2900 rpm on 50 Hz power, delivering 0.55 kW (P2) shaft output while drawing just 1.6 A per motor under full load. Built in strict compliance with IEC 60034 standards, the windings incorporate Class F thermal insulation for continuous commercial duty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTwin Multistage Hydraulics: Pairs two horizontal stainless steel pumps in a 3-stage configuration to maintain steady building pressure and mechanical redundancy.\u003c\/li\u003e\n\u003cli\u003eMicroprocessor Cascade Control: Coordinates lead and lag pump activation via differential pressure switches to match changing water consumption smoothly.\u003c\/li\u003e\n\u003cli\u003eAutomatic Duty Sharing: Rotates the primary operating pump after every cycle so both mechanical seals and bearings accumulate even running hours.\u003c\/li\u003e\n\u003cli\u003eHygienic Stainless Wet End: Uses AISI 316L stainless steel internal wet components and AISI 304 manifolds to resist corrosion in potable and hot water circuits.\u003c\/li\u003e\n\u003cli\u003eWide Thermal Capability: Handles circulating water temperatures spanning -15 °C to +110 °C for both chilled water and heated building loops.\u003c\/li\u003e\n\u003cli\u003eServiceable Branch Valving: Integrates individual shut-off ball valves and non-return valves so technicians can service either pump without shutting down the building.\u003c\/li\u003e\n\u003cli\u003eIndustrial Motor Protection: Constructed with Class F insulation and an IP54 ingress rating to shield internal electrical windings from plant-room dust and splashes.\u003c\/li\u003e\n\u003cli\u003eTurnkey Skid Assembly: Arrives factory mounted on a rigid baseplate with pre-wired controls and a fitted pressure gauge for rapid plumbing integration.\u003c\/li\u003e\n\u003cli\u003eCommercial Warranty Backing: Supported by a 24 Months manufacturer warranty for long-term operational peace of mind.\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 MXHL 403 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 200 L galvanised diaphragm expansion tank\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":51423234818295,"sku":"BS2F 2MXHL 403","price":12668.7,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-bs2f-2mxhl-403-three-phase-2-x-0-55kw-fixed-speed-twin-pump-multistage-booster-system.png?v=1793070852","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-bs2f-2mxhl-403-three-phase-2-x-0-55kw-fixed-speed-twin-pump-multistage-booster-system","provider":"Foundation Pumps","version":"1.0","type":"link"}