Edwards E2M28FX Two Stage Rotary Vane Vacuum Pump – 19.5 CFM, 200-230/380-415V 3-Phase 50/60Hz, PFPE Prepared (A37341940)
The Edwards E2M28FX (part number A37341940) is a high-capacity two-stage oil-sealed rotary vane vacuum pump from the EM series, specially PFPE prepared (FX version) for use with corrosive, aggressive, or reactive vapors and gases. This 3-phase model features a versatile motor supporting 200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz (hard-wired in the electrical box), making it perfect for facilities with three-phase power and continuous-duty operation.
With a strong pumping speed of 19.5 CFM (33.0 m³/h) at 60 Hz and an excellent ultimate vacuum of 1 × 10⁻³ mbar (7.5 × 10⁻⁴ Torr) without gas ballast, the E2M28FX offers faster pump-down and deeper vacuum than the E2M18 series. The FX designation prepares the pump for inert PFPE oils (such as Fomblin® or Krytox®), providing superior chemical resistance where standard hydrocarbon oils would degrade quickly.

Key Features and Benefits
- Two-stage rotary vane design for deep ultimate vacuum and high vapor tolerance
-
PFPE prepared (FX version) — excellent compatibility with corrosive and aggressive chemicals
- High pumping speed of 19.5 CFM (33.0 m³/h) at 60 Hz
- Quiet operation at 57 dB(A)
- Universal 3-phase motor: 200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz
- Adjustable gas ballast for improved handling of condensable vapors
- Advanced pressurized oil lubrication system for long service life and reliability
- Thermal overload protection
- NW25 inlet flange for easy system integration
- Rugged freestanding design built for continuous industrial use
Technical Specifications
| Specification |
Value |
| Pumping Speed (60 Hz, Pneurop) |
19.5 CFM / 33.0 m³/h |
| Displacement (60 Hz) |
22.3 CFM / 38.9 m³/h |
| Ultimate Vacuum (without gas ballast) |
1 × 10⁻³ mbar / 7.5 × 10⁻⁴ Torr |
| Ultimate Vacuum (with gas ballast) |
~1.5 × 10⁻² mbar |
| Motor Power (60 Hz) |
0.90 kW |
| Voltage / Frequency |
200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz |
| Power Connection |
Hard-wired (in electrical box) |
| Noise Level |
57 dB(A) |
| Inlet Flange |
NW25 (KF25) |
| Outlet Connection |
15 mm external diameter nozzle (removable from 3/4" BSP) |
| Max Water Vapor Pumping Rate |
0.7 kg/h |
| Oil Capacity (max / min) |
1.5 L / 1.2 L |
| Oil Type (for FX version) |
PFPE (Fomblin® or Krytox® – ordered separately) |
| Weight |
44 kg / 97 lbs |
| Operating Temperature Range |
13 – 40°C |
Why Choose the Edwards E2M28FX 3-Phase? This 3-phase PFPE-prepared version delivers higher pumping capacity than the E2M18FX while offering full chemical resistance and efficient performance for continuous-duty applications. It is the ideal choice for aggressive chemical processes, semiconductor work, or any harsh vacuum environment where standard pumps would fail prematurely.
Applications
- Chemical and pharmaceutical vacuum processes
- Semiconductor and thin-film coating
- Aggressive vapor handling in laboratories
- Vacuum drying and degassing of reactive materials
- Mass spectrometry and analytical instruments
- Harsh industrial vacuum environments
What's Included
- Edwards E2M28FX Rotary Vane Vacuum Pump (A37341940)
- Initial fill of Ultragrade 19 oil (for testing/break-in)
- NW25 centering ring and O-ring
- Spare seals for oil drain and filler plugs
Important Notes:
-
PFPE oil (Fomblin® or equivalent) is not supplied and must be ordered separately for corrosive service.
- Power cord / wiring is not included (hard-wired in the electrical box).
The Edwards E2M28FX two-stage rotary vane vacuum pump (3-phase, PFPE prepared) delivers higher capacity, strong chemical resistance, quiet operation, and dependable performance for the most challenging vacuum applications.
Edwards E2M28FX Two Stage Rotary Vane Vacuum Pump – 19.5 CFM, 200-230/380-415V 3-Phase 50/60Hz, PFPE Prepared (A37341940)
The Edwards E2M28FX (part number A37341940) is a high-capacity two-stage oil-sealed rotary vane vacuum pump from the EM series, specially PFPE prepared (FX version) for use with corrosive, aggressive, or reactive vapors and gases. This 3-phase model features a versatile motor supporting 200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz (hard-wired in the electrical box), making it perfect for facilities with three-phase power and continuous-duty operation.
With a strong pumping speed of 19.5 CFM (33.0 m³/h) at 60 Hz and an excellent ultimate vacuum of 1 × 10⁻³ mbar (7.5 × 10⁻⁴ Torr) without gas ballast, the E2M28FX offers faster pump-down and deeper vacuum than the E2M18 series. The FX designation prepares the pump for inert PFPE oils (such as Fomblin® or Krytox®), providing superior chemical resistance where standard hydrocarbon oils would degrade quickly.

Key Features and Benefits
- Two-stage rotary vane design for deep ultimate vacuum and high vapor tolerance
-
PFPE prepared (FX version) — excellent compatibility with corrosive and aggressive chemicals
- High pumping speed of 19.5 CFM (33.0 m³/h) at 60 Hz
- Quiet operation at 57 dB(A)
- Universal 3-phase motor: 200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz
- Adjustable gas ballast for improved handling of condensable vapors
- Advanced pressurized oil lubrication system for long service life and reliability
- Thermal overload protection
- NW25 inlet flange for easy system integration
- Rugged freestanding design built for continuous industrial use
Technical Specifications
| Specification |
Value |
| Pumping Speed (60 Hz, Pneurop) |
19.5 CFM / 33.0 m³/h |
| Displacement (60 Hz) |
22.3 CFM / 38.9 m³/h |
| Ultimate Vacuum (without gas ballast) |
1 × 10⁻³ mbar / 7.5 × 10⁻⁴ Torr |
| Ultimate Vacuum (with gas ballast) |
~1.5 × 10⁻² mbar |
| Motor Power (60 Hz) |
0.90 kW |
| Voltage / Frequency |
200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz |
| Power Connection |
Hard-wired (in electrical box) |
| Noise Level |
57 dB(A) |
| Inlet Flange |
NW25 (KF25) |
| Outlet Connection |
15 mm external diameter nozzle (removable from 3/4" BSP) |
| Max Water Vapor Pumping Rate |
0.7 kg/h |
| Oil Capacity (max / min) |
1.5 L / 1.2 L |
| Oil Type (for FX version) |
PFPE (Fomblin® or Krytox® – ordered separately) |
| Weight |
44 kg / 97 lbs |
| Operating Temperature Range |
13 – 40°C |
Why Choose the Edwards E2M28FX 3-Phase? This 3-phase PFPE-prepared version delivers higher pumping capacity than the E2M18FX while offering full chemical resistance and efficient performance for continuous-duty applications. It is the ideal choice for aggressive chemical processes, semiconductor work, or any harsh vacuum environment where standard pumps would fail prematurely.
Applications
- Chemical and pharmaceutical vacuum processes
- Semiconductor and thin-film coating
- Aggressive vapor handling in laboratories
- Vacuum drying and degassing of reactive materials
- Mass spectrometry and analytical instruments
- Harsh industrial vacuum environments
What's Included
- Edwards E2M28FX Rotary Vane Vacuum Pump (A37341940)
- Initial fill of Ultragrade 19 oil (for testing/break-in)
- NW25 centering ring and O-ring
- Spare seals for oil drain and filler plugs
Important Notes:
-
PFPE oil (Fomblin® or equivalent) is not supplied and must be ordered separately for corrosive service.
- Power cord / wiring is not included (hard-wired in the electrical box).
The Edwards E2M28FX two-stage rotary vane vacuum pump (3-phase, PFPE prepared) delivers higher capacity, strong chemical resistance, quiet operation, and dependable performance for the most challenging vacuum applications.
Edwards E2M28FX Two Stage Rotary Vane Vacuum Pump – 19.5 CFM, 200-230/380-415V 3-Phase 50/60Hz, PFPE Prepared (A37341940)
The Edwards E2M28FX (part number A37341940) is a high-capacity two-stage oil-sealed rotary vane vacuum pump from the EM series, specially PFPE prepared (FX version) for use with corrosive, aggressive, or reactive vapors and gases. This 3-phase model features a versatile motor supporting 200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz (hard-wired in the electrical box), making it perfect for facilities with three-phase power and continuous-duty operation.
With a strong pumping speed of 19.5 CFM (33.0 m³/h) at 60 Hz and an excellent ultimate vacuum of 1 × 10⁻³ mbar (7.5 × 10⁻⁴ Torr) without gas ballast, the E2M28FX offers faster pump-down and deeper vacuum than the E2M18 series. The FX designation prepares the pump for inert PFPE oils (such as Fomblin® or Krytox®), providing superior chemical resistance where standard hydrocarbon oils would degrade quickly.

Key Features and Benefits
- Two-stage rotary vane design for deep ultimate vacuum and high vapor tolerance
-
PFPE prepared (FX version) — excellent compatibility with corrosive and aggressive chemicals
- High pumping speed of 19.5 CFM (33.0 m³/h) at 60 Hz
- Quiet operation at 57 dB(A)
- Universal 3-phase motor: 200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz
- Adjustable gas ballast for improved handling of condensable vapors
- Advanced pressurized oil lubrication system for long service life and reliability
- Thermal overload protection
- NW25 inlet flange for easy system integration
- Rugged freestanding design built for continuous industrial use
Technical Specifications
| Specification |
Value |
| Pumping Speed (60 Hz, Pneurop) |
19.5 CFM / 33.0 m³/h |
| Displacement (60 Hz) |
22.3 CFM / 38.9 m³/h |
| Ultimate Vacuum (without gas ballast) |
1 × 10⁻³ mbar / 7.5 × 10⁻⁴ Torr |
| Ultimate Vacuum (with gas ballast) |
~1.5 × 10⁻² mbar |
| Motor Power (60 Hz) |
0.90 kW |
| Voltage / Frequency |
200-230/380-415V 3-ph 50 Hz or 200-230/460V 3-ph 60 Hz |
| Power Connection |
Hard-wired (in electrical box) |
| Noise Level |
57 dB(A) |
| Inlet Flange |
NW25 (KF25) |
| Outlet Connection |
15 mm external diameter nozzle (removable from 3/4" BSP) |
| Max Water Vapor Pumping Rate |
0.7 kg/h |
| Oil Capacity (max / min) |
1.5 L / 1.2 L |
| Oil Type (for FX version) |
PFPE (Fomblin® or Krytox® – ordered separately) |
| Weight |
44 kg / 97 lbs |
| Operating Temperature Range |
13 – 40°C |
Why Choose the Edwards E2M28FX 3-Phase? This 3-phase PFPE-prepared version delivers higher pumping capacity than the E2M18FX while offering full chemical resistance and efficient performance for continuous-duty applications. It is the ideal choice for aggressive chemical processes, semiconductor work, or any harsh vacuum environment where standard pumps would fail prematurely.
Applications
- Chemical and pharmaceutical vacuum processes
- Semiconductor and thin-film coating
- Aggressive vapor handling in laboratories
- Vacuum drying and degassing of reactive materials
- Mass spectrometry and analytical instruments
- Harsh industrial vacuum environments
What's Included
- Edwards E2M28FX Rotary Vane Vacuum Pump (A37341940)
- Initial fill of Ultragrade 19 oil (for testing/break-in)
- NW25 centering ring and O-ring
- Spare seals for oil drain and filler plugs
Important Notes:
-
PFPE oil (Fomblin® or equivalent) is not supplied and must be ordered separately for corrosive service.
- Power cord / wiring is not included (hard-wired in the electrical box).
The Edwards E2M28FX two-stage rotary vane vacuum pump (3-phase, PFPE prepared) delivers higher capacity, strong chemical resistance, quiet operation, and dependable performance for the most challenging vacuum applications.