The Edwards Pump 18 is a used, VG condition, oil-sealed rotary vane vacuum pump designed for reliable, long-term operation. This single stage pump is known for its high ultimate vacuum, rapid pumping speed, and quiet operation. The pump is commonly used in various laboratory applications such as analytical instruments, leak detectors, and backing turbomolecular pumps. With an ultimate vacuum of 3 x 10-2mbar and a displacement of 20.5 m3h-1, the pump offers exceptional performance. The technology used in this pump ensures oil lubrication, preventing oil discharge to the pump interior after operation. The Edwards Pump 18 is acclaimed for its reliability, cooling fan enclosed motors, and a wide range of operating features that make it suitable for diverse applications.
Key Features

• Single stage oil-sealed rotary vane pump
• High ultimate vacuum and rapid pumping speed
• Reliable, long-term operation with efficient cooling and thermal overload protection
• Flexible coupling drive suited for single-phase or three-phase motors
• Air-tight pumping chambers and a pressurized oil system for lubrication

Specifications

• Displacement (50Hz): 20.5 m3h-1 / 12.1 ft3min-1
• Displacement (60Hz): 25.0 m3h-1 / 14.7 ft3min-1
• Ultimate Vacuum: 3 x 10-2mbar (without gas purge)
• Inlet Connection: NW25
• Outlet Connection: Nozzle 15 mm external
• Max Permitted Pressure at Outlet: 0.5 bar gauge / 7 psig
• Max Inlet Pressure: 50 mbar / 38 Torr for water vapour
• Operating Temp Range: 13-40°C
• Motor Power: 0.55 kW (50 Hz), 0.75 kW (60 Hz)
• Weight: 37 kg / 82 lbs
• Noise @ 50Hz: 57 dB(A)
• Oil Capacity - Max: 1.4 litres, Min: 0.9 litres
• Recommended Oil: Ultragrade 19

Weight

Metric: 37 kg

Imperial: 82 lb
Dimensions

Metric: 23.62206 cm x 7.87402 cm x 19.68505 cm
Imperial: 9.3 in x 3.1 in x 7.8 in