{"product_id":"calpeda-nmp-50-12h-cast-iron-self-priming-centrifugal-pump-for-pool-water-circulation-with-brass-impeller","title":"Calpeda NMP 50\/12H Cast Iron Self-Priming Centrifugal Pump for Pool Water Circulation with Brass Impeller","description":"\u003cp\u003eBuilt for larger swimming pool filtration circuits, the Calpeda NMP 50\/12H combines self-priming operation with high-capacity water recirculation performance for commercial and heavy-duty pool systems. The hydraulic arrangement is intended for clean or slightly contaminated water containing suspended solids commonly encountered during continuous filtration duty.\u003c\/p\u003e\n\n\u003cp\u003eHydraulic output reaches flow rates up to 750 L\/min with maximum head extending to 16.5 m depending on installation conditions. The pump operates through a three-phase 400V induction motor rated at 2.2 kW while maintaining rotational speed close to 2900 rpm for stable recirculation performance.\u003c\/p\u003e\n\n\u003cp\u003eCirculation efficiency is supported through a chrome-plated brass impeller integrated into the NMP 50\/12 hydraulic assembly. The self-priming centrifugal design enables suction lift capability up to 7 m, while the built-in strainer basket with 3 mm perforations assists retention of suspended debris before it reaches the impeller section.\u003c\/p\u003e\n\n\u003cp\u003eMechanical durability is provided through cataphoresis-coated cast iron construction across the casing and lantern bracket assembly. A carbon ceramic mechanical seal with FPM elastomer components manages shaft sealing duties, while the motor assembly incorporates class F insulation together with IPX4 enclosure protection. Water temperatures up to 60°C and working pressures up to 6 bar are supported during operating service.\u003c\/p\u003e\n\n\u003cstrong\u003eFEATURES\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-priming centrifugal configuration developed for pool filtration systems\u003c\/li\u003e\n\u003cli\u003eIntegrated basket strainer with 3 mm perforated filter openings\u003c\/li\u003e\n\u003cli\u003eChrome-plated brass impeller supporting large-volume water circulation\u003c\/li\u003e\n\u003cli\u003eCataphoresis-coated cast iron casing and lantern bracket assembly\u003c\/li\u003e\n\u003cli\u003eClose-coupled motor layout reducing installation footprint requirements\u003c\/li\u003e\n\u003cli\u003eCarbon ceramic mechanical seal with FPM elastomer materials\u003c\/li\u003e\n\u003cli\u003eTwo-pole induction motor operating near 2900 rpm rotational speed\u003c\/li\u003e\n\u003cli\u003eClass F insulated motor enclosure with IPX4 environmental protection\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50773535883511,"sku":"NMP 50\/12H","price":2736.86,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-nmp-50-12h-cast-iron-self-priming-centrifugal-pump-for-pool-water-circulation-with-brass-impeller.png?v=1778666051","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-nmp-50-12h-cast-iron-self-priming-centrifugal-pump-for-pool-water-circulation-with-brass-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}