Edwards Vacuum
Turbo Pumps & Systems
New Turbo Pumps
New Turbo Pumping Stations
Refurbished / Demo Turbo Pumps
Rotary Vane Pumps
New Rotary Vane Pumps
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Vacuum Measurement
Vacuum Hardware
KF (NW) Components
CF Components
ISO Components
Leak Detectors & Mass Specs
Spare Parts
Rotary Vane Pumps
Vacuum Fluids / Greases
Traps Mist Filters
Laboratory Equipment
Liquid Handling
Bottletop Dispensers
Bottletop Dispensers Parts & Accesories
- A373-24-904 / Agilent G1969-80208
- Fully Remanufactured / Like New
- 100-105 VAC / 200-210 VAC
- KF 25 Inlet Port
Fuly Rebuilt Edwards E2M28 Rotary Vane Vacuum Pump, Hydrocarbon Oil, Dual Stage, 100-105 VAC / 200-210 VAC, A37324904, Agilent G1969-80208
Edwards E2M28 Overview:
The E2M28 A373-24-904 Rotary Vane Pump is a two-stage, direct drive, sliding vane pump. 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 Edwards E2M28 electric motor 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 E2M28 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.
Edwards E2M28 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 aluminum alloy baseplate on rubber pads.
Agilent vacuum pump, 208 V (200 to 220 VAC), 50/60 Hz, TOF 62XX series, triple quad 64XX series, and Q-TOF 65XX series, models 62XX, G6410A/B, G6430A, G6460A, G6510A, G6520B, G6530A, G6538A, and G6540A
Edwards E2M28 Applications:
- Gas Analysis
- Leak Detection
- Mass Spectrometers
- Electron Microscopes
- Centrifuges
- Sterilization
- Electron Tubes
- Lamps
- Air Conditioning
- Drying
- Ion Implantation
- Cryogenics
- Gas Recovery
- Oxygen Pumping
Edwards E2M28 Dimensions:
Click Here for Edwards E2M28 and E2M30 Manual
A&J Vacuum also repair / rebuild and service all Edwards E1M18, E2M18, E2M18, E2M28 Series Vacuum Pumps along with all other Edwards Turbo Pumps, Edwards Dry Pumps, Edwards Scroll Pumps and all other Edwards Vacuum Rotary Vane pumps. Please contact us for information on service program or click here http://www.ajvs.com/service.php to go to our Service page. We also offer Emergency service upon request. For more information Please contact A&J Vacuum Services at 973-249-0854
Fuly Rebuilt Edwards E2M28 Rotary Vane Vacuum Pump, Hydrocarbon Oil, Dual Stage, 100-105 VAC / 200-210 VAC, A37324904, Agilent G1969-80208
Edwards E2M28 Technical Data:
| Displacement (swept volume) | |
| 50 Hz | 32.2 m3h-1 |
| 60 Hz | 38.9 m3h-1 |
| Maximum Pumping Speed | |
| 50 Hz | 27.5 m3h-1 |
| 60 Hz | 33.0 m3h-1 |
| Rotational Speed | |
| 50 Hz | 1440 r min-1 |
| 60 Hz | 1720 r min-1 |
| Ultimate vacuum (total pressure) | |
| without gas ballast (partial pressure) | 1 x 10-4 mbar |
| without gas ballast (total pressure) | 1 x 10-3 mbar |
| with full gas ballast (partial pressure) | 2 x 10-1 mbar |
| Maximum Water Vapor Inlet Pressure: | 30 mbar |
| Maximum Water Vapor Pumping Rate | 0.7 kg h-1 |
| Oil Capacity | 1.32 L |
| Recommended Oil Type | Ultragrade 19 |
| Weight | 44 kg / 97 lbs |
Click Here for Edwards E2M28 and E2M30 Manual
A&J Vacuum also repair / rebuild and service all Edwards E1M18, E2M18, E2M18, E2M28 Series Vacuum Pumps along with all other Edwards Turbo Pumps, Edwards Dry Pumps, Edwards Scroll Pumps and all other Edwards Vacuum Rotary Vane pumps. Please contact us for information on service program or click here http://www.ajvs.com/service.php to go to our Service page. We also offer Emergency service upon request. For more information Please contact A&J Vacuum Services at 973-249-0854
Edwards_E2M28_E2M30_Manual.pdf 
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Service and Repair - Turbo Pumps
- Rotary Vane Pumps
- Dry Vacuum Pumps
- Leak Detectors
- Scroll Dry Pumps
- Vacuum Boosters
- Diaphragm Dry Pumps
A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service.
We operate at our own full service repair facility in Clifton, NJ. We have invested in state-of-the-art equipment including; complete line of decontamination, cleaning, drying, balancing, vibration analysis and software to minimize failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.
We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies.
Repair Steps
- Full incoming inspection and run up time check, vibration check, drive inspection.
- Full disassembly, decontamination and cleaning.
- Pump is balanced utilizing state-of-the-art equipment from the world leader in equipment balancing and analysis to reduce noise and vibrations and extend bearings life.
- Assembly and replacement of all necessary parts such as shafts, bushings, bearings, sleeves, O-rings, gaskets, seals, wicks, etc. Only parts that meet or surpass OEM specifications are used to ensure dependable highest quality service and long pump life.
- Final test and leak check. The pump in fully assembled condition is checked for vacuum seal. Leak test to 1 x 10-9 Mbar l/s. Vibrations are analyzed and test data is digitally recorded.
Every pump and instrument is extensively tested for 48 hours. During our final tests, we monitor total pressure, temperature, vibration and noise level utilizing newest testing technologies and techniques specified by OEM. Upon request, we can provide our customers with a pump down graph. Call us for your free repair estimate at 1-973-249-0854.
Overview
Fuly Rebuilt Edwards E2M28 Rotary Vane Vacuum Pump, Hydrocarbon Oil, Dual Stage, 100-105 VAC / 200-210 VAC, A37324904, Agilent G1969-80208
Edwards E2M28 Overview:
The E2M28 A373-24-904 Rotary Vane Pump is a two-stage, direct drive, sliding vane pump. 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 Edwards E2M28 electric motor 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 E2M28 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.
Edwards E2M28 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 aluminum alloy baseplate on rubber pads.
Agilent vacuum pump, 208 V (200 to 220 VAC), 50/60 Hz, TOF 62XX series, triple quad 64XX series, and Q-TOF 65XX series, models 62XX, G6410A/B, G6430A, G6460A, G6510A, G6520B, G6530A, G6538A, and G6540A
Edwards E2M28 Applications:
- Gas Analysis
- Leak Detection
- Mass Spectrometers
- Electron Microscopes
- Centrifuges
- Sterilization
- Electron Tubes
- Lamps
- Air Conditioning
- Drying
- Ion Implantation
- Cryogenics
- Gas Recovery
- Oxygen Pumping
Edwards E2M28 Dimensions:
Click Here for Edwards E2M28 and E2M30 Manual
A&J Vacuum also repair / rebuild and service all Edwards E1M18, E2M18, E2M18, E2M28 Series Vacuum Pumps along with all other Edwards Turbo Pumps, Edwards Dry Pumps, Edwards Scroll Pumps and all other Edwards Vacuum Rotary Vane pumps. Please contact us for information on service program or click here http://www.ajvs.com/service.php to go to our Service page. We also offer Emergency service upon request. For more information Please contact A&J Vacuum Services at 973-249-0854
Specifications
Fuly Rebuilt Edwards E2M28 Rotary Vane Vacuum Pump, Hydrocarbon Oil, Dual Stage, 100-105 VAC / 200-210 VAC, A37324904, Agilent G1969-80208
Edwards E2M28 Technical Data:
| Displacement (swept volume) | |
| 50 Hz | 32.2 m3h-1 |
| 60 Hz | 38.9 m3h-1 |
| Maximum Pumping Speed | |
| 50 Hz | 27.5 m3h-1 |
| 60 Hz | 33.0 m3h-1 |
| Rotational Speed | |
| 50 Hz | 1440 r min-1 |
| 60 Hz | 1720 r min-1 |
| Ultimate vacuum (total pressure) | |
| without gas ballast (partial pressure) | 1 x 10-4 mbar |
| without gas ballast (total pressure) | 1 x 10-3 mbar |
| with full gas ballast (partial pressure) | 2 x 10-1 mbar |
| Maximum Water Vapor Inlet Pressure: | 30 mbar |
| Maximum Water Vapor Pumping Rate | 0.7 kg h-1 |
| Oil Capacity | 1.32 L |
| Recommended Oil Type | Ultragrade 19 |
| Weight | 44 kg / 97 lbs |
Click Here for Edwards E2M28 and E2M30 Manual
A&J Vacuum also repair / rebuild and service all Edwards E1M18, E2M18, E2M18, E2M28 Series Vacuum Pumps along with all other Edwards Turbo Pumps, Edwards Dry Pumps, Edwards Scroll Pumps and all other Edwards Vacuum Rotary Vane pumps. Please contact us for information on service program or click here http://www.ajvs.com/service.php to go to our Service page. We also offer Emergency service upon request. For more information Please contact A&J Vacuum Services at 973-249-0854
Videos
Spare Parts
Accessories
Service & Repair
- Turbo Pumps
- Rotary Vane Pumps
- Dry Vacuum Pumps
- Leak Detectors
- Scroll Dry Pumps
- Vacuum Boosters
- Diaphragm Dry Pumps
A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service.
We operate at our own full service repair facility in Clifton, NJ. We have invested in state-of-the-art equipment including; complete line of decontamination, cleaning, drying, balancing, vibration analysis and software to minimize failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.
We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies.
Repair Steps
- Full incoming inspection and run up time check, vibration check, drive inspection.
- Full disassembly, decontamination and cleaning.
- Pump is balanced utilizing state-of-the-art equipment from the world leader in equipment balancing and analysis to reduce noise and vibrations and extend bearings life.
- Assembly and replacement of all necessary parts such as shafts, bushings, bearings, sleeves, O-rings, gaskets, seals, wicks, etc. Only parts that meet or surpass OEM specifications are used to ensure dependable highest quality service and long pump life.
- Final test and leak check. The pump in fully assembled condition is checked for vacuum seal. Leak test to 1 x 10-9 Mbar l/s. Vibrations are analyzed and test data is digitally recorded.
Every pump and instrument is extensively tested for 48 hours. During our final tests, we monitor total pressure, temperature, vibration and noise level utilizing newest testing technologies and techniques specified by OEM. Upon request, we can provide our customers with a pump down graph. Call us for your free repair estimate at 1-973-249-0854.
