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Welch™ Gem™ Vacuum Pumps and Systems

Designed for rotary evaporations with high boiling point solvents

Manufacturer:  Welch™ 8890A75

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Catalog No. 01-129-2


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Includes: Exhaust mist eliminator

Description

Description

Rugged gear pumping mechanism operates over a wide range of pressures. Efficiently pumps vapors without condensing them into the pump.

  • Effective evaporation for DMSO and other high boiling point solvents
  • Adjustable vacuum to prevent bumping
  • Gear pump mechanism is tolerant of vapors
  • Exhaust mist eliminator prevents oil loss
  • Free air displacement: 31L/min. (1.1cfm)
  • Ultimate vacuum: 0.1 torr
  • Oil capacity: 0.5 qt. (0.45L)
  • Accepts tubing: 10mm I.D.

Order Info

Dimensions: 14.5L x 5.12W x 14.37 in. H (36.8 x 13 x 36.3cm). Net weight: 27.5 lb. (12.5kg). For 115V 60Hz.

Compliance

CSA approved

Specifications

Specifications

0.1 torr
115 V
11.8 kg
3450 rpm
115 V 60 Hz
50 dB (A)
11.1 kg
Rotary evaporator
8.4 in.
14.5 in.
5.1 in.
0.25 hp
26 lb.
Tubing, gauge, Model 1421 vacuum regulator, 1416B exhaust mist eliminator, plus the GEM pump to connect to a rotary evaporator
CSA
GEM Complete System For Filtration
24.5 lb.
31 L/min.
60 Hz
21.3 cm
36.8 cm
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