{"product_id":"speck-pumpen-npy-2251-mk-0259-mag-drive-turbine-pump","title":"Speck Pumpen NPY-2251-MK.0259 Mag-Drive Turbine Pump","description":"\u003cdiv\u003e\u003cp\u003eSpeck Pumpen NPY-2251-MK.0259 is a magnetic-drive regenerative turbine pump designed for leak-free operation in closed-loop heat-transfer and cooling circuits. Housed in a 63 mm frame and powered by a three-phase motor, it runs at 2800 rpm on 50 Hz (0.50 kW \/ 0.67 HP) or 3400 rpm on 60 Hz (0.55 kW \/ 0.74 HP), delivering about 28 L\/min against roughly 49 meters of head with a torque rating of 3.0 Nm and a weight of approximately 9.6 kg. Inlet\/outlet connections are G 1\/2 for the hydraulic lines and a G 1\/8 port for auxiliary connections, with indications of self-priming capability to facilitate startup in compact installations. The mag-drive design eliminates a traditional shaft seal, reducing leakage paths and enabling safer service with water and light oils in applications such as heat exchangers, cooling loops, and general liquid transfer; standard listings cite maximum liquid temperatures around 140 °C for water and oil in common configurations, though certain TOE variants within the same family may specify higher limits. \u003c\/p\u003e\u003c\/div\u003e","brand":"SPECK PUMPEN","offers":[{"title":"New","offer_id":46259711213802,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-014.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/speck-pumpen-npy-2251-mk-0259-mag-drive-turbine-pump","provider":"GTG Hardware","version":"1.0","type":"link"}