Used Lab Equipment

Used Lab Equipment

We typically have used and reconditioned pumps in stock from leading manufacturers like Cole-Palmer and Watson/Marlow.

Welch: 1-7 of 7

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Welch 1400N Vacuum Pump

Welch 1400N Vacuum Pump

Cambridge ID #: 14860

Specifications:

  • Pumping Speed Displacement: 0.9 CFM
  • Hertz: 50/60 Hz
  • Voltage: 115/220
  • Oil capacity: 0.62 qt.
  • Weight: 58 lbs.
  • Dimensions LxWxH: 18x9x13 in.
  • Intake: 3/4-20
  • Outtake: 3/4-20
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Welch-1400N-Vacuum-Pump-14860
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Welch 1402 Vacuum Pump

Welch 1402 Vacuum Pump

Cambridge ID #: 11804

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These rotary vane pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Specifications:

  • Free Air Displacement cfm (l/min.) @60Hz: 5.6(160)
  • Ultimate Pressure: 1 x 10-4(0.00013)
  • Pump RPM: 525
  • Oil Capacity: 2.25(2.1)
  • Motor Horsepower (watts): 1/2(370)
  • Overall Dimensions LxWxH in. (cm):  20x12x15 (51x30.5x60)
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Welch-1402-Vacuum-Pump-11804
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Welch 1402B-01 Duoseal Vacuum Pump

Welch 1402B-01 Duoseal Vacuum Pump

Cambridge ID #: 11271

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These rotary vane pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Specifications:

  • Free Air Displacement cfm (l/min.) @60Hz: 5.6(160)
  • Ultimate Pressure: 1 x 10-4(0.00013)
  • Pump RPM: 525
  • Oil Capacity: 2.25(2.1)
  • Motor Horsepower (watts): 1/2(370)
  • Overall Dimensions LxWxH in. (cm):  20x12x15 (51x30.5x60)
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Welch-1402B-01-Duoseal-Vacuum-Pump-11271
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Welch 2025 Dry Vacuum PumpImage Coming Soon

Welch 2025 Dry Vacuum Pump

Cambridge Scientific ID #'s: 7633, 6352

Maintains efficiency and extends diaphragm life.

Specifications:

 

  • Free Air Displacement: 35 L/min
  • Max Pressure: 29.5 Pascal
  • Dimensions: 11.8 L x 8 W x 11 1/2 H (in)
  • Weight: 13.6 kg

 

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Welch 8920A Vacuum PumpImage Coming Soon

Welch 8920A Vacuum Pump

Cambridge ID #: 18943

Description:

Refrigeration service pump is designed for removing air and moisture from industrial and commercial chillers. Pump includes a gas ballast valve that inhibits condensation reducing corrosion, an On/Off switch, 3-wire cord, and oil.

Specifications:

  • Displacement: 7.7 cfm
  • Ultimate Pressure Torr: 3 x 10-4
  • Intake Male SAE Flare: 3/4
  • NPT Inlet: 3/4"
  • Voltage: 115/230
  • Amps AC: 6.8/3.4
  • Dimensions (L x H x W): 20.5” x 10.75” x 7.125”
  • Hz: 60
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Welch Duoseal 1405 Vacuum Pump

Welch Duoseal 1405 Vacuum Pump

Cambridge Scientific ID #'s: 20619, 20622

Features:

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Specifications: 

  • Applications: Vacuum Ovens, Glove Boxes, General Laboratory Vacuum 
  • Free Air Displacement cfm (l/min.) @60Hz: 3.2(90)
  • Ultimate Pressure: 1 x 10-4(0.00013)
  • Pump RPM: 525
  • Intake Thread NPT: 1-20 straight thread
  • Exhaust Thread NPT: 1-20 straight thread
  • Overall Dimensions LxWxH in. (cm): 20x12x15 (51x30.5x60)
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Welch Gem 1.0 Vacuum PumpImage Coming Soon

Welch Gem 1.0 Vacuum Pump

Cambridge ID #: 13474

Description:

The Welch 8890A, GEM 1.0 is a durable vacuum pump with a superior vapor handling capability. The Welch 8890A, Direct Drive Vacuum dual stage rotary vane mechanical vacuum pump offers an excellent ultimate pressure of  1 x 10-1 Torr. These pumps are commonly used for vacuum furnace evacuation, backing turbomolecular pumps, backing diffusion pumps, rotary evaporation, refrigeration system evacuation, epoxy degassing, vacuum sterilization, backing mass spectrometers, freeze drying, vacuum centrifugal applications, vacuum distillation, space research, and other vacuum processes. This pump also is well suited for use in gas analyzers, continuous gas-flow lasers, general-purpose drying, and similar uses where a middle-range vacuum level is required.

Specifications:

  • Ultimate Pressure (Torr): 1 x 10-1
  • Sound Level (dBA): 58
  • Motor/Pump Speed (60 Hz): 3450
  • Weight: 24.5 lbs. (11.1 kg)
  • Dimensions (L x W x H): 14.5 x 5.1 x 8.4” (36.8 x 13 x 21.3 cm)
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Welch-Gem-1.0-Vacuum-Pump-13474
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