Feature

All PTFE wetted materials
Perfect for high boiling point applications
Chemical duty
Convenient vacuum control
Easy operation and maintenance

Suggested Applications

Concentrator - Gel Dryer Combination
Rotary Evaporator
Vacuum Concentrator
Vacuum Oven

Use DryFast vacuum pumps for precise, convenient solvent evaporations without oil mess. Portable and chemical resistant, DryFast PTFE diaphragm pumps provide excellent vapor flow and the right vacuum for top application performance. Perform rotary or centrifugal evaporations in minimal time with no sample foaming or bumping.

DryFast pumps use Advanced Vapor Management (AVM) to adjust vacuum levels to exact levels needed for optimal evaporation rates. The handy AVM knob fine-tunes vacuum while purging condensates from the diaphragm to maintain efficient pumping and extended diaphragm life.
DryFast achieves top vacuum performance with only one or two pumping heads (model dependent) – a design that promotes efficiency and low maintenance. Quiet, oil-free, PTFE / perfluoroelastomer contact surfaces.

2 torr DryFast models provide deep vacuum for rotary evaporation of solvents with atmospheric pressure B.P. up to 160o C. The 35 L/min model will accommodate larger evaporation flasks up to 10L or small vacuum ovens. Use the 25 L/min model for flask evaporations to 2 L.

Manual

Product flyer

Specifications & Description

Head Configuration	Dual Heads
Wetted Parts	PTFE, Kalrez®
Free-Air Capacity (CFM)	1.2
Free-Air Capacity (LPM)	34
Free-Air Capacity (LPH)	2040
Max Flow Rate (CFM)	1.23
Max Flow Rate (Liters/min)	35
Max Vacuum (in Hg)	29.85
Max Vacuum (mbar)	2.4
Max Vacuum (mm Hg)	1.8
Max Vacuum (torr)	1.8
Noise Level (dB)	53
Port Size	1/4" hose barb
Max Temperature (° F)	104
Max Temperature (° C)	40
Duty Cycle	Continuous
Power (VAC)	115
Power (amps)	2.65
Power (Hz)	60
Height (in)	8.875
Length (in)	13.875
Height (cm)	22.54
Length (cm)	35.24
Height (mm)	225.4
Length (mm)	352.4
Motor	hp1/4
Description	Vacuum Pump, PTFE, 2 torr, 35 L/min, 115V

Welch Vacuum 2042B-01 DryFast Vacuum Pump, Oil-Free Diaphragm