Welch Gem 1.0 Vacuum Pump 8890A-70 Direct Drive Gear Pump

Product Information

The Welch Gem 1.0 Vacuum Pump 8890A-70 is a 1/4HP direct drive gear pump with a speed of 3450 RPM. This used unit is in good working condition with normal signs of cosmetic wear from regular use, including features such as evaporating high boiling solvents, vacuum level measurement and adjustment, and an exhaust oil recycler to eliminate oil mist. The versatile vacuum provided by GEM direct drive gear pumps is suitable for various applications, including low volatility solvent evaporation at low temperatures and use with a rotary evaporator. Maximum vacuum is at 0.1 torr (0.133 mbar), along with unique application areas for practical utility in laboratory settings.

• Equipped with a 1/4HP direct drive gear pump with a speed of 3450 RPM
• Includes features such as evaporating high boiling solvents and vacuum level measurement and adjustment
• Exhaust oil recycler eliminates oil mist to ensure efficient operation

• Type: Laboratory Vacuum Pump
• Free Air Displacement cfm (l/min.) @60Hz: 1.1(31)
• Free Air Displacement m3/hr (l/min.) @50Hz: 1.6(26)
• Ultimate Pressure: 1x10-1(0.133) torr (mbar)
• Sound Level: 58
• Pump RPM: 3450
• Oil Capacity: 0.48(0.45)
• Motor Horsepower (watts): 1/4(190)
• Tubing Needed: 3/8 (10)
• Intake Thread NPT: Barb (1/4 in NPT)
• Exhaust Thread NPT: 3/4/20
• Overall Dimensions LxWxH: 14.5x5.1x14.3 in. (36.8x13x36.3 cm)

Metric: 15.875 kg
Imperial: 35 lbs

Metric: 36.8 cm x 13 cm x 36.3 cm
Imperial: 14.5 in x 5.1 in x 14.3 in

8414102000

Vacuum pumps; liquid ring vacuum pumps and other rotary piston vacuum pumps, suitable for use with fluid filters and refrigerant evacuation devices.