Edwards Direct-Drive Rotary Vane Vacuum Pump, Dual Mode, 3.5 cfm, 115/220 VAC, Cole-Parmer (CAT#: STEM-DS-0633-LC)

The Edwards Direct-Drive Rotary Vane Vacuum Pump manufactured by Cole-Parmer combines high-vacuum (HV) mode and high-throughput (HT) mode in one unit. The pump can be used with electron microscopes or mass spectrometers in HV mode, and used with gel dryers, vacuum ovens, or rotary evaporators in HT mode.

Wetted Parts:Cast iron, stainless steel, aluminum, Buna N, and flouroelastomers
Free Air Capacity (CFM):3.5
Free Air Capacity (LPM):99
Max Vacuum (with ballast):7.5 x 10-2 mm Hg
Max Vacuum (without ballast):1.5 x 10-3 mm Hg
Inlet Port:NW 25
Outlet Port:NW 25
Noise Level:48 dB(A)
Oil Capacity (Liters):0.7
Oil Capacity (oz):24
Max Temperature (° F):104
Max Temperature (° C):40
Duty Cycle:Continuous
Motor Type:TEFC
Power (VAC):115 / 230
Power (Hz):50/60
Power (amps):1.4
Height (in):8.875
Width (in):6.25
Length (in):16.875
Height (cm):22.5
Width (cm):15.9
Length (cm):42.9
Motor hp:1/2

Positive pressure oil system provides proper lubrication and prevents insufficient oil under high gas loads
If the pump is stopped under vacuum, the fast-acting intake valve prevents oil and air contamination of internal components
Gas ballast valve can limit internal condensation

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