Product Gallery Welch 8905A Direct Drive Vacuum Pump

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Welch 8905A Direct Drive Vacuum Pump

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$ 1,917.80

 $ 2,230.00
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The Welch 8905A Direct Drive vacuum pump is a robust vacuum pump for applications requiring pressures < 50 Torr. The  8905A achieves < 0.050 Torr with a pumping speed of 51 liters/min (1.8 CFM).

These small direct drive, oil sealed vacuum pumps should not be operated continuously at pressures above 50 Torr. Operating this vacuum pump at higher pressure will induce excessive oil spraying from the exhaust of the vacuum pump causing premature failure and void warranty. Please consult your Chemtech Scientific Representative for consultation, should the ultimate pressure of your process run above 50 Torr

What's included 1 qt vacuum oil
Common accessory, not included Exhaust Filter
Pumping Speed 1.8 CFM (51 lit/min.)
Max. Vacuum 0.050 Torr
Oil Capacity 0.42 qts
Tubing Needed Accepts 3/16" or 7/16" ID hose
Inlet Connection Unibarb (3/4 -20)
Intake / Exhaust threads 3/4-20
Pump RPM @ 60 hz 3450
Dimensions LxWxH 14.5x5.1x8.4
Weight 24.5 LBS
Wiring Wired for 115v, 60 Hz, 1 ph with N. American 115v Plug

The Welch 8905A Direct Drive vacuum pump is a robust vacuum pump for applications requiring pressures < 50 Torr. The  8905A achieves < 0.050 Torr with a pumping speed of 51 liters/min (1.8 CFM).

These small direct drive, oil sealed vacuum pumps should not be operated continuously at pressures above 50 Torr. Operating this vacuum pump at higher pressure will induce excessive oil spraying from the exhaust of the vacuum pump causing premature failure and void warranty. Please consult your Chemtech Scientific Representative for consultation, should the ultimate pressure of your process run above 50 Torr

What's included 1 qt vacuum oil
Common accessory, not included Exhaust Filter
Pumping Speed 1.8 CFM (51 lit/min.)
Max. Vacuum 0.050 Torr
Oil Capacity 0.42 qts
Tubing Needed Accepts 3/16" or 7/16" ID hose
Inlet Connection Unibarb (3/4 -20)
Intake / Exhaust threads 3/4-20
Pump RPM @ 60 hz 3450
Dimensions LxWxH 14.5x5.1x8.4
Weight 24.5 LBS
Wiring Wired for 115v, 60 Hz, 1 ph with N. American 115v Plug

Brochures

Accessories

  • Brochure Dimensional drawing
  • Brochure Exploded parts list
  • Brochure Manual
  • Brochure Speed curve
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