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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

Specifications

For Use With Vacuum ovens, freeze dryers, concentrators and chambers
Overall Height (English) 9.62 in.
Overall Height (Metric) 24.3 cm
Includes Line cord, switch, plug and vacuum Oil, integral isolation valve
Overall Length (English) 18.5 in.
View More Specs

Includes: Line cord, switch, plug, vacuum oil and integral isolation valve

Products 1
Catalog Number Mfr. No. Amperage Flow Rate Electrical Requirements Price Quantity & Availability  
Catalog Number Mfr. No. Amperage Flow Rate Electrical Requirements Price Quantity & Availability  
01-257-15 Accessories View Documents Welch™
8917A
4.6 A 6.1 CFM 115 V 60 Hz 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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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 8917
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

Vacuum ovens, freeze dryers, concentrators and chambers
24.3 cm
18.5 in.
1 x 10-4 torr
16.5 cm
9.62 in.
Line cord, switch, plug and vacuum Oil, integral isolation valve
47.1 cm
6.5 in.
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