Welch WOB-L Standard Duty Oil-Free Dry Vacuum Pump 2561
SKU: Product Code: 2561B50 Vendor: Welch
MSRP: $1,720.00Price: $1,462.00
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Standard Duty Oil-Free Dry Vacuum Pump 2561B-50
Welch High Throughput Standard Duty Oil-Free Dry Vacuum Pump 2561B-50
Powered By An Economical WOB-L Piston
Simplicity is the key to the Welch High Throughput Standard Duity Oil-Free Dry Vacuum Pump. As piston wobbles, air resistance on upward stroke expands Teflon seal on piston to increase its efficiency while compensating for the wobble action. The Welch High Throughput Standard Duty Oil-Free Dry Vacuum Pump 2561B-50 is ideal for Shel Labs 1425 0.6 and 1445 1.7 cubic foot capacity vacuum ovens.
The Welch High Throughput Standard Duty Oil-Free Dry Vacuum Pump 2561B-50 is ideal for use with the Shel Lab Model 14525 Series (0.6) 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.
Ideal for Non-Corrosive Duty:
Vacuum to 5 Torr (29.8, in. Hg)
No water or oil
Lightweight, compact and quiet
Continuous oil-free Pumping
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.(mm)
Weight, lbs. (kg)
Dimensions L x W x H in.
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.