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Welch Ilmvac 8905 Direct Drive Pump
Portable with small footprint
Vacuum to 1 X 10-4 torr
Welch Direct-Drive Rotary Vane Vacuum Pumps achieve vacuum levels down to 1x10-4 torr (0.1 micron) with flows up to 11.3 CFM. These compact, portable oil-seal pumps are recommended for a variety of laboratory applications. Vacuum system configuration with a cold trap is recommended for use with harsh chemicals. Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.
Model Number 8905
Applications Centrifugal Concentrators, Vacuum Ovens, Freeze Dryers, SEM's, Annular Spaces / Transfer Lines Type Laboratory Vacuum Pump Free Air Displacement cfm (l/min.) @60Hz 1.8(51) Free Air Displacement m3/hr (l/min.) @50Hz 2.6(43) Ultimate Pressure 2 x 10-3(0.0027) Sound Level 52 Pump RPM 3450 Oil Capacity 0.42(0.4) Motor Horsepower (watts) 1/4(190) Tubing Needed 3/16, 7/16 (5, 11) Intake Thread NPT UNIBARB (3/4-20) Exhaust Thread NPT 3/4/20 Overall Dimensions LxWxH in. (cm) 14.5x5.1x8.4 (36.8x13x21.3) Ship Weight 33(15) Shipping Carton Dimensions LxWxH in. (cm) 21.5x12.5x16 (54.6x31.8x40.6)