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Welch™ DryFast™ and DryFast Ultra™ Diaphragm Vacuum Pumps

Catalog No. 01257156
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Maximum Pressure:
2 torr
35 torr
40 torr
50 torr
70 torr
9 torr
Air Displacement:
21 L/min.
25 L/min.
29 L/min.
35 L/min.
42 L/min.
50 L/min.
70 L/min.
10 product options available for selection
Product selection table with 10 available options. Use arrow keys to navigate and Enter or Space to select.
Catalog No. Maximum Pressure Air Displacement
01257156 40 torr 35 L/min.
12-584-100 40 torr 29 L/min.
01-257-502 9 torr 25 L/min.
01-257-505 35 torr 42 L/min.
01-257-508 9 torr 35 L/min.
01-257-501 2 torr 21 L/min.
01-257-506 2 torr 35 L/min.
01-257-504 50 torr 50 L/min.
01-257-510 70 torr 70 L/min.
01-257-500 2 torr 25 L/min.
Use arrow keys to navigate between rows. Press Enter or Space to select a product option. 10 options available.
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Catalog No. 01257156 Supplier Welch™ Supplier No. 2014B01
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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

Max. Vacuum 79 Torr
Horsepower 0.2 hp
Shipping Weight (English) 19 lb.
Shipping Weight (Metric) 8.6 kg
Includes Pump, 6 ft powercord and plug (115V US standard)
Certifications/Compliance CE, CSA
Electrical Requirements 115 V 60 Hz
Material PTFE, Perfluoroelastomer
Model 2014
Weight (English) 15 lb.
Weight (Metric) 6.8 kg
Flow Rate 25 to 70 L/min.
Frequency 60 Hz
Overall Height (English) 8.3 in.
Overall Height (Metric) 21.1 cm
Overall Length (English) 12 in.
Overall Length (Metric) 30.5 cm
Overall Width (English) 7 in.
Pump Type Vacuum Pump
Air Displacement 35 L/min.
Applications Filtration, Rotary Evap. BP to 40°C
Maximum Pressure 40 torr
Voltage 115 V
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