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Edwards E1M18 Single Stage Rotary Vane Vacuum Pump – 12.1 CFM (A34317984)
The Edwards E1M18 (part number A34317984) is a robust single-stage oil-sealed rotary vane vacuum pump from the renowned EM series. Designed for laboratory and light industrial applications, it delivers reliable performance with high pumping speeds, quiet operation, and excellent vapor handling capabilities.
This direct-drive pump is ideal for applications requiring fast roughing and a good ultimate vacuum, such as mass spectrometry, freeze drying, vacuum ovens, refrigeration service, vacuum coating, and general laboratory vacuum processes. The E1M18 features a pressurized oil lubrication system that ensures long-term reliability and protects internal components.
Key Features and Benefits
- Single-stage rotary vane design offering rapid pumping speed and high roughing performance
- Quiet operation at just 57 dB(A) — suitable for laboratory environments
- Excellent water vapor handling with gas ballast control
- Dual-voltage single-phase motor (115/200-230V, 50/60 Hz) with IEC60320 connector, factory set to 230V for easy installation
- Compact, freestanding unit with flexible coupling drive
- Supplied complete with Ultragrade 19 oil, NW25 O-ring, and centering ring
- Thermal overload protection for added safety
- Long service intervals and easy maintenance
Technical Specifications
| Specification | Value |
|---|---|
| Pumping Speed (60 Hz, Pneurop) | 12.1 CFM / 20.4 m³/h |
| Displacement (60 Hz) | 14.7 CFM / 25.0 m³/h |
| Ultimate Vacuum (without gas ballast, total pressure) | 3 × 10⁻² mbar / 2.2 × 10⁻² Torr |
| Ultimate Vacuum (with gas ballast) | 6.5 × 10⁻¹ mbar / 4.8 × 10⁻¹ Torr |
| Motor Power (60 Hz) | 0.75 kW / 1 HP |
| Voltage / Frequency | 115/200-230V, 1-phase, 50/60 Hz (factory set to 230V) |
| 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 | 0.65 kg/h |
| Oil Capacity (max / min) | 1.4 L / 0.9 L |
| Recommended Oil | Ultragrade 19 (supplied) |
| Weight | 37 kg / 82 lbs |
| Operating Temperature Range | 13–40°C |
| Power Connector | IEC EN60320 C19 |
Why Choose the Edwards E1M18? The EM series pumps are industry-standard for their balance of performance, reliability, and ease of use. The single-stage E1M18 provides faster pumping speeds compared to two-stage models in the rough vacuum range, making it an excellent choice when high throughput is more important than ultra-low ultimate pressure. It handles moderate vapor loads effectively thanks to the adjustable gas ballast.
Applications
- Laboratory vacuum systems
- Analytical instruments (mass specs, electron microscopes)
- Freeze dryers and vacuum ovens
- Refrigeration and air conditioning service
- Light industrial processes and vacuum coating
What's Included
- Edwards E1M18 Rotary Vane Vacuum Pump (A34317984)
- Ultragrade 19 vacuum pump oil
- NW25 centering ring and O-ring
This Edwards E1M18 single stage rotary vane vacuum pump combines proven Edwards engineering with practical features that deliver consistent, dependable vacuum performance day after day.
The Edwards E1M18 (part number A34317984) is a robust single-stage oil-sealed rotary vane vacuum pump from the renowned EM series. Designed for laboratory and light industrial applications, it delivers reliable performance with high pumping speeds, quiet operation, and excellent vapor handling capabilities.
This direct-drive pump is ideal for applications requiring fast roughing and a good ultimate vacuum, such as mass spectrometry, freeze drying, vacuum ovens, refrigeration service, vacuum coating, and general laboratory vacuum processes. The E1M18 features a pressurized oil lubrication system that ensures long-term reliability and protects internal components.
Key Features and Benefits
- Single-stage rotary vane design offering rapid pumping speed and high roughing performance
- Quiet operation at just 57 dB(A) — suitable for laboratory environments
- Excellent water vapor handling with gas ballast control
- Dual-voltage single-phase motor (115/200-230V, 50/60 Hz) with IEC60320 connector, factory set to 230V for easy installation
- Compact, freestanding unit with flexible coupling drive
- Supplied complete with Ultragrade 19 oil, NW25 O-ring, and centering ring
- Thermal overload protection for added safety
- Long service intervals and easy maintenance
Technical Specifications
| Specification | Value |
|---|---|
| Pumping Speed (60 Hz, Pneurop) | 12.1 CFM / 20.4 m³/h |
| Displacement (60 Hz) | 14.7 CFM / 25.0 m³/h |
| Ultimate Vacuum (without gas ballast, total pressure) | 3 × 10⁻² mbar / 2.2 × 10⁻² Torr |
| Ultimate Vacuum (with gas ballast) | 6.5 × 10⁻¹ mbar / 4.8 × 10⁻¹ Torr |
| Motor Power (60 Hz) | 0.75 kW / 1 HP |
| Voltage / Frequency | 115/200-230V, 1-phase, 50/60 Hz (factory set to 230V) |
| 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 | 0.65 kg/h |
| Oil Capacity (max / min) | 1.4 L / 0.9 L |
| Recommended Oil | Ultragrade 19 (supplied) |
| Weight | 37 kg / 82 lbs |
| Operating Temperature Range | 13–40°C |
| Power Connector | IEC EN60320 C19 |
Why Choose the Edwards E1M18? The EM series pumps are industry-standard for their balance of performance, reliability, and ease of use. The single-stage E1M18 provides faster pumping speeds compared to two-stage models in the rough vacuum range, making it an excellent choice when high throughput is more important than ultra-low ultimate pressure. It handles moderate vapor loads effectively thanks to the adjustable gas ballast.
Applications
- Laboratory vacuum systems
- Analytical instruments (mass specs, electron microscopes)
- Freeze dryers and vacuum ovens
- Refrigeration and air conditioning service
- Light industrial processes and vacuum coating
What's Included
- Edwards E1M18 Rotary Vane Vacuum Pump (A34317984)
- Ultragrade 19 vacuum pump oil
- NW25 centering ring and O-ring
This Edwards E1M18 single stage rotary vane vacuum pump combines proven Edwards engineering with practical features that deliver consistent, dependable vacuum performance day after day.
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