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Welch™ Direct-Drive High-Vacuum Pumps: Model 8917

Compact, portable, two-stage direct-drive pumps suitable for vacuum ovens, freeze dryers, concentrators, and chambers

Manufacturer:  Welch™ 8920A

Catalog No. 01-115-8

This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.


Includes: Line cord, switch, plug, and vacuum oil

Description

Description

All models are an efficient two-stage design for continuous high vacuum operation. Use gas ballast valve to prevent condensation of vapors and to remove water vapor contamination from oil reservoir. Not for continuous operation at pressures above 10 torr.

  • Available in pumping ranges of 1.8 to 11.3cfm (51 to 320L/min.)
  • Ultimate pressure to 1 x 10-4 torr (based on model)
  • Aluminum UNIBARB™ style inlet connector accepts two sets of tubing I.D. (3/16 to 13/16 in. [5 to 20mm]) and has a screen
  • Outlet connector has a 1-20 thread (Model 8905A has a 3/4-20 outlet connector thread)

Certifications

115V models are CSA certified; 230V models are available online or contact your Fisher Scientific™ Customer Service Rep

Specifications

Specifications

4 x 10-4 torr
115V
30.8kg
Line cord, switch, plug and vacuum Oil
CSA
20.5 x 7.06 x 10.75 in. (52.1 x 18 x 27.2cm)
54dBA
26.6kg
Vacuum ovens, freeze dryers, concentrators and chambers
10.75 in.
20.5 in.
7.06 in.
Direct-Drive High-Vacuum Pump
0.5hp
68 lb.
6.8A
1725rpm
115V 60Hz
8920
58.5 lb.
7.7 CFM
60Hz
27.2cm
52.1cm
18cm
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