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Welch™ Gem™ Vacuum Pumps and Systems

Designed for rotary evaporations with high boiling point solvents

$3,790.81 - $4,329.65

Specifications

Certifications/Compliance CSA
Electrical Requirements 115V 60Hz
Flow Rate 31L/min.
For Tube Size (English) 0.39 in.
For Tube Size (Metric) 1cm
View More Specs
Includes:  Exhaust mist eliminator
Products
Catalog Number Mfr. No. Includes Price Quantity    

01-115-2

 
welch™
8890A
Exhaust mist eliminator Each for $3,790.81

01-129-1

 
welch™
8890A70
Tubing, gauge, Model 1421 vacuum regulator, 1416B exhaust mist eliminator, plus the GEM pump to connect to a rotary evaporator Each for $4,101.77

01-129-2

 
welch™
8890A-75
Tubing, gauge, Model 1421 vacuum regulator, 1416B exhaust mist eliminator, plus the GEM pump to connect to a rotary evaporator Each for $4,329.65
Description & Specifications

Specifications

Certifications/Compliance CSA
Electrical Requirements 115V 60Hz
Flow Rate 31L/min.
For Tube Size (English) 0.39 in.
For Tube Size (Metric) 1cm
For Use With (Equipment) Rotary evaporator
Height (English) 8.4 in.
Height (Metric) 21.3cm
Hertz 60Hz
Horsepower 0.25hp
Length (English) 14.5 in.
Length (Metric) 36.8cm
Motor Speed 3450rpm
Noise Level 50dBA
Pressure 0.1 torr
Shipping Weight (English) 26 lb.
Shipping Weight (Metric) 11.8kg
Voltage 115V
Weight (English) 24.5 lb.
Weight (Metric) 11.1kg
Width (English) 5.1 in.

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.

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

CSA approved