The rugged low maintenance pumps have PTFE heads, perfluoroelastomer valves, and fluorinated plastic wetted surfaces, making DryFast a durable choice for solvent, acidic, and basic vapors.
Welch DryFast PTFE Diaphragm Vacuum Pumps enable precise vacuum control for organic evaporations with exclusive Advanced Vapor Management (AVM). Oil-Free, portable, chemical resistant, 2 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 DryFast vacuum pumps are perfect for tough lab applications.
Features:
- Chemical resistant against solvents, acidic and basic vapors
- Constructed with corrosion resistant PTFE and perfluoro plastic materials
- Oil-free for low maintenance operation
- Comes standard with fine tune adjustable knob
- Free air displacement at60Hz: 2.5 cfm (70 L/min)
- Ultimate pressure: 35 Torr (47 mbar)
Standard package includes:
- Welch 2047 chemical-resistant oil-free diaphragm pump - 1 pc
- White premium food-grade silicone vacuum hose - 3 ft
- Power Cord with Plug - 1 pc
- User's manual - 1 pc
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