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Unit powers on and is in good working condition.The Edwards RV3 dual stage rotary vane mechanical vacuum pump offers an excellent ultimate pumping speed. The Edwards RV3 has superior vapor handling capabilities, while operating quietly. They are very reliable and have accessories to match any application.Unique dual mode allows you to configure pump for very high gas loads without compromising vacuum. Easily reconfigured even when pump is running. For centrifugal concentrators, rotary evaporators, freeze dryers, gel dryers, vacuum ovens, or general-purpose requirements.Large, clearly marked, easily accessible controlsOperate at quiet 48dBAEasy to use and service (require no special tools)Fast-acting inlet valve prevents oil and gas suckback in the event of power or oil pressure lossNW25 inlet/outlet connectionsManufacturer Specifications:Max. Pressure: 1.5 x 10-3mbarFlow Rate (CFM): 2.2Noise Level: 48dBATemperature (Metric) Max: 40CFlow Rate: 76L/min.Horsepower: 0.5hpTemperature (English) Max.: 104FTemperature (Metric) Min.: 12CAdditional Prep Fees May Apply