60Hz 1 Ph

Edwards E2M30 A37415903 Two Stage Rotary Vane Vacuum Pump, 220/240 V 50/60 Hz Single - Phase Motor. Used in Clean, Excellent working condition. This Edwards E2M30 A374-15-903 pump is 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 motor. The motor is totally enclosed and is 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 (suckback) after the pump stops.

The pumping chambers are air-tight, so this arrangement prevents air suckback unless the gas-ballast valve is open. 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 aluminium alloy baseplate on rubber pads. Normal surface temperature of the pump body At ultimate vacuum, with ambient temperature of 20 °C. Noise level at 1 metre. 57 dB(A) (at 50 Hz). Vibration severity Measured at the inlet port to ISO 2372 (1974).

Maximum pumping speed - Pneurop. 1450 RPM (1440 r min-1). 1740 RPM (1720 r min-1). With full gas-ballast (partial pressure). 1.5 x 10-1 torr.

Maximum water vapour inlet pressure. Maximum water vapour pumping rate. Maximum permitted outlet pressure (for full pump throughout). Degree of protection Single-phase motors. NW25 (the flange can be removed from the 1 inch BSP threaded hole).

15 mm external diameter nozzle (the nozzle can be removed from the 3/4 inch BSP threaded hole). Recommended oil: Ultragrade 19 (To operate the pump when the ambient temperature is outside the range specified in Operating and storage conditions, or to optimise pump performance when processing condensable vapours, a different oil may be used). Maximum oil capacity: 1.32 litres.

PFPE - prepared EM pumps. Recommended oil: Krytox 1506 or Fomblin 06/6 (To operate the pump when the ambient temperature is outside the range specified in Operating and storage conditions, or to optimise pump performance when processing condensable vapours, a different oil may be used). I26.6030.3/CGG/Unit 10.2nd floor.