Edwards E2M28 Rotary Vane Vacuum Pump, 230V, Cat. #: A37316903

Features
The Edwards E2M28 Rotary Vane Vacuum Pump, 230V, Cat. #: A37316903 is a high-performance two-stage, direct-drive vacuum pump designed for precise and reliable operation in laboratory and industrial environments. With a displacement of 32.2 m³/h at 50 Hz and 38.9 m³/h at 60 Hz, it delivers a maximum pumping speed of 27.5 m³/h and 33.0 m³/h, respectively. Its ultimate vacuum capabilities include 1 x 10⁻⁴ mbar partial pressure and 1 x 10⁻³ mbar total pressure, ensuring optimal performance for demanding applications. The pump features an oil-sealed design with an integrated sight-glass and drain-plug for easy maintenance, along with thermal overload protection that automatically resets the motor after cooling.

Built for versatility, the Edwards E2M28 supports a maximum water vapor inlet pressure of 30 mbar and operates at rotational speeds of 1440 rpm at 50 Hz and 1720 rpm at 60 Hz. Its robust construction includes a fully enclosed motor with a cooling fan to maintain efficient operation. Designed for compatibility with a range of systems, this vacuum pump is ideal for gas analysis, leak detection, mass spectrometry, electron microscopy, and other critical processes. The E2M28 offers dependable performance with features tailored for long-term use and minimal maintenance.

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Edwards E2M28 Rotary Vane Vacuum Pump, 230V, Cat. #: A37316903 Specifications

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 rpm
60 Hz	1720 rpm
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
Electrical Requirements	220-240 VAC, 50/60 Hz