The Welch DryFast PTFE Diaphragm Vacuum Pumps are ideal for precise vacuum control in organic evaporations, featuring exclusive Advanced Vapor Management (AVM). These oil-free, portable pumps offer chemical resistance and a two-head diaphragm design that simplifies maintenance. Available in seven models, these pumps provide flows up to 70 L/min and adjustable vacuum down to 2 Torr, making them perfect for tough lab applications.

Features and Benefits:

• Oil-Free Design: No oil required for clean, efficient operation.
• Chemical Resistant: Ideal for applications with harsh chemicals.
• Advanced Vapor Management (AVM): Prevents liquid backflow, enhancing pump life.
• Maintenance Friendly: Two-head diaphragm design simplifies maintenance.
• Adjustable Vacuum: Offers vacuum control with a maximum vacuum of 28.5 in. Hg and ultimate pressure as low as 35 Torr.
• Portable and Reliable: Compact and lightweight for easy transport and use in various lab setups.

Technical Specifications:

• Pumping Rate: 2.5 cfm
• Ultimate Vacuum Pressure: 35 Torr
• Maximum Vacuum: 28.5 in. Hg
• Vacuum Connection: 3/8" hose barb
• Adjustable Vacuum/Gas Ballast: Yes
• Dimensions (LxWxH): 13.8 x 6.8 x 8.8 inches
• Shipping Dimensions (LxWxH): 21 x 14 x 15 inches
• Pump Weight: 21.25 lbs
• Shipping Weight: 25 lbs

Electrical Requirements:

• Voltage: 115V or 230V, 50/60Hz single phase

Certifications and Warranty:

• Certifications: UL, CSA, CE
• Warranty: One year

Included:

• Free Premium Silicone Vacuum Tubing: Three feet of 3/8" white food-grade silicone tubing (a $19.99 value).

This DryFast PTFE Vacuum Pump is a cost-effective solution for demanding laboratory tasks, offering the reliability and performance needed in a wide range of applications such as vacuum filtration.