30 min pumpdown when used with Shel Lab 1465 Series 4.5 cubic foot vacuum oven
60+min pumpdown when used with Shel Lab VPX9 Series 9 cubic foot vacuum oven
This Welch Dryfast Ultra Dry Chemical Duty vacuum pump is ideal for use with the Shel Lab Model 14545 Series 1.7 cubic foot capacity vacuum Oven.
For many applications, Welch Dry Vacuum Pumps will provide drying speeds equal to those of traditional, oil-seal pumps. This means you can upgrade to a cleaner vacuum pump that is easier to maintain.
Suitable samples include: Foods (Nuts, Cheeses, Fruits, etc), Cosmetics, wet or surface-coated samples needing moisture dryoff, chemicals drying, solvent evaporation, and many others. If your samples can be processed at 3 torr – 10 torr pressure levels, a dry pump will work well in 0.67 cubic foot, 1.7 cubic foot, and even 4.5 cubic foot capacity Shel-Lab Vacuum Ovens.
For electronic component bakeout, curing, or other samples requiring pressures of 1-3 torr, Welch Chemstar, DuoSeal (Belt Drive) and Direct Drive Oil-Seal High Vacuum Pumps are excellent choices for all size vacuum ovens.
PTFE construction for aggressive vapors & gases
Vacuum to 2 torr, throughput to 70 L/min
No water or oil
Free Air Displacement
CFM (L/min) @ 60 Hz
m3/hr (L/min) @ 50 Hz
Max. Vacuum, in. Hg
Ultimate Pressure, Torr (mbar)
Tubing Needed, I.D. in.
Weight, lbs. (kg)
Dimensions L x W x H in. (cm)
13.8 x 6.8 x 8.8
(35.2 x 17.2 x 22.3)
Ship Weight, lbs (kg)
1. All pumps supplied with an exhaust muffler, loose hose barb for exhaust port, and an installed intake hose barb.
2. 50 Hz models provided with CE marking.