Edwards E2M5 Dual Stage Rotary Vane Pump, Hydrocarbon Oil, 115/230 V, 50/60 Hz

Edwards E2M5 Dual Stage Rotary Vane Vacuum Pump, Hydrocarbon Oil, 115/230 V, 50/60 Hz

Edwards E2M5 Overview:

The Edwards E2M5, and E2M88,  Rotary Vane Pumps are single and two stage, direct drive, sliding vane pumps. The pumps are oil-sealed and designed for reliable, long term operation in both laboratory and industrial environments. The pumps are free standing units. 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.

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.

The Edwards E2M5 pumps are oil-sealed and designed for reliable, long-term operation in both laboratory and industrial environments. The pumps are free-standind units. The drive is provided through a flexible coupling by a single-phase or three-phase 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 either an automatic or manual reset thermal overload device. When the motor is too hot, the thermal overload device switches off the pump. If the thermal overload device has an automatic reset, when the pump cools down, the device resets and the pump will restart. 

Edwards E2M5 Applications:

• Gas analysis
• Leak detection
• Mass spectrometers
• Electron microscopes
• Surface analysis
• CentrifugesSterilization
• DistillationMetallurgy
• Dry etching
• Load-lock
• Cryogenics
• Gas recovery
• Oxygen pumping

Edwards E2M5 Technology:

A rotary vane pump can be described as a positive-displacement pump that is comprised of vanes mounted to a rotor that rotates inside of an enclosure. In some instances these vanes can be of varying length and tensioned to maintain contact with the walls as the pump rotates.

The simplest rotary vane pump is a circular rotor revolving inside of a larger round enclosure. The centers of these two bands are offset, inducing eccentricity. Vanes are allowed to slide in and out of the rotor and seal on all edges, making vane chambers that do the pumping work. On the intake side of the pump, the vane chambers are increasing in volume. These increasing volume vane chambers are filled with fluid forced in by the inlet pressure. Inlet pressure level is actually the pressure level from the system being pumped, frequently just the atmosphere. On the exhaust side of the pump, the vane chambers are decreasing in volume, forcing fluid out of the pump. The activity of the vane drives out the same volume of fluid with each rotation. Multistage rotary vane vacuum pumps can reach pressures levels as low as 103 mbar (0.1 Pa).Visit the rotary vane pump wiki page for more information.

A&J Vacuum also repair / rebuild and service all Edwards Vacuum and Turbo Pumps. Please contact us for information on service program or click here http://www.ajvs.com/service.php to go to our Service page.