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LEMD Liquid ring vacuum pumps Application LEMD liquid ring vacuum pumps are displacement single-stage pumps to handling and exhausting of dry and humid gases, entrained liquid can be handled during normal duty. Benefits Non-polluting due to nearly isothermal compression Oil-free, as no lubrication in the working chamber Handling of gases and vapours Small quantities of entrained liquid can be handled Easy maintenance and reliable operation Low noise and nearly free from vibration Incorporated central drain No metallic contact of the rotating parts Features Material housing: Stainless steel (SS) or Cast iron (GG) Material impeller: Stainless steel or Duplex (SS) Maximum admissible temperature: 80 degree C Standard IEC-motor with IE3. Can be configured with; IE4, NEMA, ATEX, CSA, UR, CC etc. 60Hz has CSA and UL as standard Voltage tolerances as per IEC 60034-1, long-term ±5%, short-term ±10% Motor bearings greased for lifetime Capacities correspond to LEMA & LEMB pumps according to: LEMD 27 < - > LEMA 26 LEMD 52 < - > LEMA 51 LEMD 92 < - > LEMB 91 LEMD 127 < - > LEMB 126 LEMD 162 < - > LEMB 161 LEMD 252 < - > LEMA 251 LEMD 327 < - > LEMA 325 LEMD 426 < - > LEMA 425