Welch™ Gem™ Vacuum Pumps and Systems

Designed for rotary evaporations with high boiling point solvents

Manufacturer:  Welch™ 8890A70

Catalog No. 01-129-1

Includes: Exhaust mist eliminator

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

Compliance

CSA approved

Specifications

• Horsepower: 0.25 hp
• Shipping Weight (Metric): 11.8 kg
• Motor Speed: 3450 rpm
• Electrical Requirements: 115 V 60 Hz
• Noise Level: 50 dB (A)
• Weight (Metric): 11.1 kg
• For Use With: Rotary evaporator
• Overall Height (English): 8.4 in.
• Overall Length (English): 14.5 in.
• Overall Width (English): 5.1 in.
• Voltage: 115 V

• Shipping Weight (English): 26 lb.
• Includes: Tubing, gauge, Model 1421 vacuum regulator, 1416B exhaust mist eliminator, plus the GEM pump to connect to a rotary evaporator
• Certifications/Compliance: CSA
• Description: High-vacuum gear pump systems for rotary evaporators
• Weight (English): 24.5 lb.
• Flow Rate: 31 L/min.
• Frequency: 60 Hz
• Overall Height (Metric): 21.3 cm
• Overall Length (Metric): 36.8 cm
• Maximum Pressure: 0.1 torr