Welch DryFastTM PTFE Diaphragm Vacuum Pumps enable precise vacuum control for organic evaporations with exclusive Advanced Vapor Management (AVM). Oil-Free, portable, chemical resistant, 1 head diaphragm design simplifies maintenance. Choose from seven dry PTFE vacuum pump models with flows up to 70 L / min and adjustable vacuum down to 2 Torr. Economical DryFastTM vacuum pumps are perfect for tough lab applications.
Welch DryFastTM PTFE Diaphragm Vacuum Pumps enable precise vacuum control for organic evaporations with exclusive Advanced Vapor Management (AVM). Oil-Free, portable, chemical resistant, 1 head diaphragm design simplifies maintenance. Choose from seven dry PTFE vacuum pump models with flows up to 70 L / min and adjustable vacuum down to 2 Torr. Economical DryFastTM vacuum pumps are perfect for tough lab applications.
Model Number | 2014 |
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Applications | Vacuum Filtration, SPE, Rotary Evaporations (volatile solvents <80oC B.P., volume <2 liters), pumping harsh vapors & gases, general laboratory vacuum |
Type | Laboratory Vacuum Pump |
Free Air Displacement cfm (l/min.) @60Hz | 1.2(35) |
Free Air Displacement m3/hr (l/min.) @50Hz | 1.75(29) |
Ultimate Pressure | 40(53) |
Maximum Vacuum | 28.3 |
Motor Horsepower (watts) | 1/5(150) |
Adjustable Vac. / Gas Ballast | Yes |
Tubing Needed | 1/4(7) |
Intake Thread NPT | M14(1/8) |
Overall Dimensions LxWxH in. (cm) | 12x7.0x8.3 (30.5x 17.8x21.1) |
Ship Weight | 19(8.6) |
Shipping Carton Dimensions LxWxH in. (cm) | 21x14x15 (52x35x37) |
Adjustable Vacuum | Knob |
Model Number | 2034 | 2044 | 2037 | 2047 |
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Applications | Rotary Evaporation/Distillation (medium volatility solvents <110oC B.P., volume ~ 1 liter), Vacuum ovens - small, pumping harsh vapors & gases | Rotary Evaporation/Distillation (medium volatility solvents <110oC B.P., volume ~ 2 liter), Centrigugal Concentrator (e.g. DNA pelleting), Vacuum ovens - small, pumping harsh vapors & gases | Vacuum Filtration (to 6 funnels), Vacuum ovens (2 to 4.5 ft3), harsh vapors & gases | Vacuum Filtration (to 6 funnel manifold), Vacuum ovens (2 to 4.5 ft3), Aspiration, Lab Automation,Pumping harsh vapors & gases |
Type | Laboratory Vacuum Pump | Laboratory Vacuum Pump | Laboratory Vacuum Pump | Laboratory Vacuum Pump |
Free Air Displacement cfm (l/min.) @60Hz | 0.9(25) | 1.2(35) | 1.8(50) | 2.5(70) |
Free Air Displacement m3/hr (l/min.) @50Hz | 1.25(21) | 1.75(29) | 2.5(42) | 3.5(58) |
Ultimate Pressure | 9(12) | 9(12) | 35(47) | 35(47) |
Maximum Vacuum | 29.6 | 29.6 | 28.5 | 28.5 |
Motor Horsepower (watts) | 1/5(150) | 1/5(150) | 1/5(150) | 1/5(150) |
Adjustable Vac. / Gas Ballast | Yes | Yes | Yes | Yes |
Tubing Needed | 1/4(7) | 1/4(7) | 1/4(7) | 1/4(7) |
Intake Thread NPT | M14(1/8) | M14(1/8) | M14(1/8) | M14(1/8) |
Overall Dimensions LxWxH in. (cm) | 13.8x6.8x8.8 (35.2x7.2x22.3) | 13.8x6.8x8.8 (35.2x7.2x22.3) | 13.8x6.8x8.8 (35.2x7.2x22.3) | 13.8x6.8x8.8 (35.2x7.2x22.3) |
Ship Weight | 25(11.3) | 25(11.3) | 25(11.3) | 25(11.3) |
Shipping Carton Dimensions LxWxH in. (cm) | 21x14x15 (52x35x37) | 21x14x15 (52x35x37) | 21x14x15 (52x35x37) | 21x14x15 (52x35x37) |
Adjustable Vacuum | Knob | Knob | Knob | Knob |