On request, the pumps can also be supplied with a motor controller consisting of a motor and integrated, freely programmable frequency control. The controller allows precise and extremely fast adaptation to changing operating conditions. NMH / NMV PUMPED MEDIA Fresh water, drinking water, boiler feed water, process water, seawater and brackish water, hot water, condensate, fuels, alkaline solutions, etc. MATERIALS According to the requirements of the pumped medium or according to customer requirements in grey cast iron or cast stainless steel TECHNICAL DATA • Flow rate up to 220 m3/h • Delivery height up to 400 m • Speed up to 3,500 min-1 • Temperature up to 140 °C • Housing pressure up to 40 bar • Shaft seal stuffing box packing or Mechanical seal* • Lubrication Rolling bearings grease- lubricated, plain bearings liquid-lubricated • Flange Discharge nozzle: from DN 32 to DN 80 Suction flange: DIN 2535, PN 40 Pressure flange: DIN 2535, PN 40 * depending on requirement profile • High efficiency • low-noise operation • Modular system • Optimum adaptation to operating point possible • Replaceable shaft sleeves • Use of high-quality materials • Low maintenance • Service-friendly 41
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