ETN-sp self-priming pump - C.D.R. Pompe - #1

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ETN SP series Self-priming magnetic driven centrifugal pumps Technical specifi cations Materials PP/PVC-CAW Flow rate max 25 m3/h Head max 30 m Electric motors from 0,75 kW (gr.80) to 7.5 kW (gr.132) Temperature range from 0 °C to 50 °C Allowable pressure rating from 20°C = 9bar to 50°C = 7bar Viscosity - Allowable solids Max. concentration 2% by weight, max. hardness 800 Vk, max. particle size 150 ìm Max suction lift up to -6 m ETN-SP are self-priming magnetic driven centrifugal pumps in close-coupled execution. Ideal for safe installation priming from the top of vessels and/or tanks for transferring acids, solvents and corrosive liquids. The pump has to be completely fi lled prior to priming; after the fi rst priming, pump design grants that enough liquid remains in the casing for subsequent primings. ETN SP exclusive design does not require any “Clapet” or nonreturn valve, that may be subject to wear and deteriorate pump performances. All non metallic wet-end components are injection moulded and/or machined from block material. The LF Graphite bush confi guration, with its low friction coeffi cient, combined with CDR FTC exclusive balancing system of the internal magnet (Full Thrust Control), allows to withstand occasional dry running periods up to one hour. On the other hand, the SiC version allows the use of this pumps with particularly aggressive and abrasive liquids. The magnetic coupling with neodymium-ironboron magnets insures a sealless, zero-leakage pumping solution. The closed-coupled execution makes the ETN SP pump very compact, silent and safe.