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Welch™ DryFast™ and DryFast Ultra™ Diaphragm Vacuum Pumps

Catalog No. 01257504
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Maximum Pressure:
2 torr
40 torr
50 torr
70 torr
9 torr
Air Displacement:
25 L/min.
35 L/min.
50 L/min.
70 L/min.
7 product options available for selection
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Catalog No. Maximum Pressure Air Displacement
01257504 50 torr 50 L/min.
01257156 40 torr 35 L/min.
01257502 9 torr 25 L/min.
01257508 9 torr 35 L/min.
01257500 2 torr 25 L/min.
01257506 2 torr 35 L/min.
01257510 70 torr 70 L/min.
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Catalog No. 01257504 Supplier Welch™ Supplier No. 2037B01
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Description

Includes

Pump, 6 ft. power cord and plug. (115V US Standard plug)

Designed for use with rotary evaporators, concentrators and vacuum ovens.

Designed for use with rotary evaporators, concentrators and vacuum ovens.

Use these oil-free DryFast vacuum pumps for applications requiring chemical resistance. DryFast pumps provide mid-range vacuum (2 to 79 torr) with easy adjustment and low maintenance. Flow rates from 25 to 70 L/min. Select a DryFast model to suit your application needs:

Applications

  • Rotary Evaporation to 40°C atmospheric B.P.: 2014B-01 (1-head design)
  • Rotary Evaporation to 100°C atmospheric B.P.: 2034B-01, 2044B-01
  • Rotary Evaporation to 40°C atmospheric B.P.: 2032B-01, 2042B-01
  • Vacuum Filtration to 2 funnels: 2014B-01 (1-head design)
  • Vacuum Filtration to 6 funnels: 2037B-01, 2047B-01
  • Vacuum Ovens to 1.5 ft3: 2042B-01
  • Vacuum Ovens to 4.5 ft3: 2047B-01

Design Advantages

  • PTFE / fluorinated contact surfaces
  • Efficient 2-head diaphragm design reduces maintenance
  • Advanced Vapor Management knob for easy vacuum adjustment
  • Compact, portable, quiet
  • Readily connects using 1/4 in. ID tubing

Certifications

CSA, CE Marked

Specifications

Horsepower 0.2 hp
Shipping Weight (English) 25 lb.
Shipping Weight (Metric) 11.3 kg
Includes Pump, 6 ft powercord and plug (115V US standard)
Certifications/Compliance CE, CSA
Electrical Requirements 115 V 60 Hz
Material PTFE (Pump Head), Perfluoroelastomer
Model 2037
Weight (English) 21.25 lb.
Weight (Metric) 9.6 kg
Frequency 60 Hz
Overall Height (English) 8.8 in.
Overall Height (Metric) 22.3 cm
Overall Length (English) 13.8 in.
Overall Length (Metric) 35.2 cm
Overall Width (English) 6.8 in.
Air Displacement 50 L/min.
Applications Filtration
Maximum Pressure 50 torr
Voltage 115 V
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