{"product_id":"calpeda-cm-20-cast-iron-continuous-duty-centrifugal-pump-for-agricultural-liquids-with-open-impeller","title":"Calpeda CM 20 Cast Iron Continuous Duty Centrifugal Pump for Agricultural Liquids with Open Impeller","description":"\u003cp\u003eSmall-scale liquid circulation involving emulsions or lightly contaminated fluids can be handled by the Calpeda CM 20 through its compact centrifugal hydraulic arrangement. The open-impeller design supports utility service duties and auxiliary equipment applications where unrestricted liquid movement is preferred within confined installation spaces.\u003c\/p\u003e\u003cp\u003eOperating performance reaches 4.8 m³\/h maximum flow with discharge head extending to 12.3 m, supporting balanced low-to-medium pressure liquid handling across compact hydraulic systems. The unit is powered through a 240V single-phase induction motor utilizing 0.25 kW rated output power with operating current of 2.5 A while maintaining rotational speed near 2900 rpm.\u003c\/p\u003e\u003cp\u003eSuspended particles up to 4 mm are permitted to pass through the open impeller arrangement without creating excessive internal flow restriction. The centrifugal hydraulic path assists stable circulation behaviour for moderately contaminated liquids under varying service conditions.\u003c\/p\u003e\u003cp\u003eCast iron construction across the hydraulic casing and lantern bracket assembly provides mechanical rigidity during operating service. Shaft sealing relies on carbon ceramic mechanical seal faces combined with NBR elastomer support components, while the motor assembly incorporates capacitor-start operation, internal thermal protection, IP54 enclosure protection, and class F insulation. Liquid temperatures from -10°C to 90°C are supported alongside maximum working pressure up to 6 bar.\u003c\/p\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003eOpen impeller hydraulic geometry allowing suspended particle passage up to 4 mm\u003c\/li\u003e\n\u003cli\u003eCompact centrifugal construction suited to confined installation layouts\u003c\/li\u003e\n\u003cli\u003eCast iron hydraulic body assisting structural operating durability\u003c\/li\u003e\n\u003cli\u003eSingle-phase 240V induction motor operating near 2900 rpm rotational speed\u003c\/li\u003e\n\u003cli\u003eCapacitor-start motor configuration with integrated thermal protection system\u003c\/li\u003e\n\u003cli\u003eCarbon ceramic mechanical sealing arrangement with NBR elastomer support\u003c\/li\u003e\n\u003cli\u003eClass F insulated motor enclosure with IP54 environmental protection\u003c\/li\u003e\n\u003cli\u003eClose-coupled pump and motor layout minimizing alignment requirements\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50773059469559,"sku":"CM 20","price":844.35,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-cm-20-cast-iron-continuous-duty-centrifugal-pump-for-agricultural-liquids-with-open-impeller.png?v=1778649313","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-cm-20-cast-iron-continuous-duty-centrifugal-pump-for-agricultural-liquids-with-open-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}