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Welch™ Direct-Drive High-Vacuum Pumps: Model 8907

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

Manufacturer:  Welch™ 8907A

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Catalog No. 01-257-11

This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.
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Includes: Line cord, switch, plug and vacuum Oil, integral isolation valve

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)
Models 8907
Include integral isolation valve to prevent oil and air contamination of the system in the event of a power failure.

Certifications

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

Specifications

Specifications

1 x 10-4 torr
115V
21kg
Line cord, switch, plug and vacuum Oil, integral isolation valve
CSA
18.5 x 6.5 x 9.62 in. (46.9 x 16.5 x 24.3cm)
50dBA
18.1kg
Vacuum ovens, freeze dryers, concentrators and chambers
9.62 in.
18.5 in.
6.5 in.
Direct-Drive High-Vacuum Pump
0.5hp
46 lb.
4.6A
1725rpm
115V 60Hz
8907
40 lb.
2.6 CFM
60Hz
24.3cm
46.9cm
16.5cm
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