{"product_id":"grundfos-cmb-sp-3-56-stainless-steel-self-priming-pressure-boosting-residential-pump-multistage-impeller","title":"Grundfos CMB-SP 3-56 Stainless Steel Self-Priming Pressure Boosting Residential Pump Multistage Impeller","description":"\u003cp\u003eThe Grundfos CMB-SP 3-56 is a self-priming pressure boosting pump designed for residential water systems, garden irrigation, and light-duty pressure applications. It is supplied as a complete booster unit with an integrated PM2 pressure manager, enabling automatic start and stop operation based on demand while providing dry-run protection and restart functionality.\u003c\/p\u003e\n\n\u003cp\u003eConstructed with a stainless steel pump housing and multistage stainless steel impellers (AISI 304), the pump delivers strong corrosion resistance and long operational life. The compact booster configuration ensures easy installation and dependable performance across various applications.\u003c\/p\u003e\n\n\u003cp\u003eThe pump operates at a rated flow of 3 m³\/h with a corresponding head of 42.1 metres. Based on the performance curve, the unit delivers a maximum flow of approximately 65 L\/min at low head conditions and achieves a maximum head of approximately 56 metres at shut-off. It supports a self-priming suction lift of up to 4 metres.\u003c\/p\u003e\n\n\u003cp\u003eThe unit is powered by a 0.67 kW electric motor operating on a 1 x 220–240 V, 50 Hz supply. The integrated PM2 controller ensures automatic pressure control and efficient system operation.\u003c\/p\u003e\n\n\u003cstrong\u003eFEATURES\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eMotor: 0.67 kW Electric Motor, 1 x 220–240 V, 50 Hz\u003c\/li\u003e\n\u003cli\u003eMaximum Flow: approx. 65 L\/min\u003c\/li\u003e\n\u003cli\u003eMaximum Head: approx. 56 m\u003c\/li\u003e\n\u003cli\u003eRated Flow: 3 m³\/h\u003c\/li\u003e\n\u003cli\u003eRated Head: 42.1 m\u003c\/li\u003e\n\u003cli\u003ePump Type: Self-priming pressure boosting pump\u003c\/li\u003e\n\u003cli\u003eController: Integrated PM2 pressure manager with dry-run protection\u003c\/li\u003e\n\u003cli\u003eConstruction: Stainless steel pump housing with multistage stainless steel impellers (AISI 304)\u003c\/li\u003e\n\u003cli\u003eImpellers: Multistage design (6-stage)\u003c\/li\u003e\n\u003cli\u003eMechanical Seal: AVBE shaft seal\u003c\/li\u003e\n\u003cli\u003eSelf-Priming Capability: Up to 4 m suction lift\u003c\/li\u003e\n\u003cli\u003eReturn Valve: Integrated\u003c\/li\u003e\n\u003cli\u003eMaximum Operating Pressure: 10 bar\u003c\/li\u003e\n\u003cli\u003eMaximum Ambient Temperature: Maximum 50°C\u003c\/li\u003e\n\u003cli\u003ePump Liquid Temperature: Maximum 40°C\u003c\/li\u003e\n\u003cli\u003eInlet Size: 25 mm\u003c\/li\u003e\n\u003cli\u003eOutlet Size: 25 mm\u003c\/li\u003e\n\u003cli\u003eEnclosure Class: IP55\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50710759604471,"sku":"98507630","price":1245.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-cmb-sp-3-56-stainless-steel-self-priming-pressure-boosting-residential-pump-multistage-impeller.png?v=1777013529","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-cmb-sp-3-56-stainless-steel-self-priming-pressure-boosting-residential-pump-multistage-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}