Edwards E2M30 Vacuum Pump CLEARANCE! As-Is

Edwards E2M30 Vacuum Pump

****Unit has been tested to specifications. . Buyer can expect a working pump and a 30 day warranty. Unit was able to reach 2 mm Torr on a vacuum gage in a timely manner. Unit has little signs of cosmetic wear... see photos for more details

Description 

The E2M28 and E2M30 pumps are two-stage, direct drive, sliding vane pumps. The pump is oil-sealed and designed for reliable, long-term operation in both laboratory and industrial environments. The pump is a free-standing unit. The drive is provided through a flexible coupling by a single-phase or three-phase (four pole) motor. The motors are totally enclosed and are cooled by the motor-cooling fan which directs air along the motor fins. The single-phase motors have a thermal overload device. When the motor is too hot, the thermal overload device switches off the pump. The thermal overload device has an automatic reset; when the motor cools down, the device resets and the motor will restart. The single-phase motors have an on/off switch.

An oil pressure system lubricates the pump shaft bearing surfaces and rotor sealing faces. The pump has an oil distribution valve which prevents discharge of oil to the pump interior (suck back) after the pump stops. The pumping chambers are air-tight, so this arrangement prevents air suck back unless the gas-ballast valve is open. For protection in this case, refer to Section 1.4 of the manual. You can inspect the level and condition of oil in the oil box reservoir through the oil sight-glass. An oil filler-plug is fitted to the top of the oil box. The pump has an oil drain-plug to allow gravity oil drain. The pump has an inlet-port, outlet nozzle and gas-ballast control. The pump is mounted on an aluminum alloy baseplate on rubber pads. Details of suitable vibration isolators and other recommended accessories are given in the manual.