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Section 7: APPLICATION INFORMATION
7.20 Vacuum System for Vacuum Chamber, Glove Box, Annular Space & Transfer Line:
-
2562B-01
-
2562C-05
-
2562C-56
7.21 System Components *
2562C-01
2562C-56
Qty.
Description for regulator / separator jar
*
1
Jar Assembly
*
1
Needle Valve Miniature
*
1
Instrument Knob
*
1
Hose Barb, 3/8” NPT
*
1
Hose Barb Fitting
*
1
Hose Barb, Male Straight Kynar
*
1
Vacuum Gauge InHg.
*
1
Jar Gasket
*
1
Plastic Jar
*
1
Hex Nipple
* System components available as kit Cat. No. 2565K-50, vacuum regulator with separator jar.
7.22 Vacuum System for Cell Harvesting:
Welch’s new portable oil-free general utility roughing pumps provide continuous, reliable
vacuum that your vacuum chamber, glove box, annular space and transfer line applications
require. The pumping mechanism is an economical twin head oil-free Wob-L® known for
reliability and durability. These rugged pumps handle 20,000 plus roughing cycles – from
atmospheric to 5 Torr – before needing seal maintenance.
The pumps come completely equipped and ready to use. An inlet trap to help prevent ingestion
of fl uids into the pump, a dial gauge for continuous vacuum level monitoring, and a vacuum
regulator to adjust vacuum levels. Just plug it in and you’ re up and running.
Choose Model 2581B-50 for evacuating vacuum ovens, annular spaces, transfer lines and
purging a glove box up to 30 cubic feet. For Vacuum Ovens, Model 2561B-50 is suited for 1.5
cubic foot ovens or smaller and Model 2581B-50 can be used for up to 3.5 cubic feet.
The pumping speed of the 2561 and 2581 at rough vacuum levels is equal to oil-seal rotary
vane pumps of similar size. This makes the 2561 and 2581 an economical, oil-free solution
for replacing oil-seal rotary vane pumps. These pumps are therefore highly recommended for
standard duty laboratory applications, general vacuum work and where quick roughing of a
chamber is needed.
The 2581 and 2561 pump Models are for use in standard duty applications. This means that
they are not recommended for pumping acidic, basics or organic vapors or gasses. If you are
looking for a pump to handles these types of conditions, contact a Welch representative and
they will be able to assist you in selecting the correct pump for your application.
Summary of Contents for 2562B-01
Page 12: ...12 6 11 Pumping Speed Curves...