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™ 8917A

 View more versions of this product

Catalog No. 01-257-15

  Check Availability
Add to Cart


    Horsepower 0.5hp
    Voltage 115V
    Hertz 60Hz
    Height (English) 9.62 in.
    Height (Metric) 24.3cm
    Width (English) 6.5 in.
    Width (Metric) 16.5cm
    Length (English) 18.5 in.
    Length (Metric) 47.1cm
    Shipping Weight (English) 48 lb.
    Shipping Weight (Metric) 22kg
    Amperage 4.6A
    Includes Line cord, switch, plug and vacuum Oil, integral isolation valve
    Motor Speed 1725rpm
    Pressure 1 x 10-4 torr
    Certifications/Compliance CSA
    Flow Rate 6.1 cfm
    For Use With (Equipment) Vacuum ovens, freeze dryers, concentrators and chambers
    Electrical Requirements 115V 60Hz
    Dimensions (L x W x H) 18.5 x 6.5 x 9.62 in. (47.1 x 16.5 x 24.3cm)
    Capacity (English) 39.6 gal./min..
    Capacity (Metric) 150L/min.
    For Tube Size (English) 0.56, 0.81 in.
    For Tube Size (Metric) 1.1, 2cm
    Model 8917
    Noise Level 50dBA
    Type Direct-Drive High-Vacuum Pump
    Weight (English) 48 lb.
    Weight (Metric) 22kg
    Dimensions (L x W x H) Exterior 18.5 x 6.5 x 9.62 in. (47.1 x 16.5 x 24.3cm)
    Width (English) Exterior 6.5 in.
    Height (English) Exterior 9.62 in.
    Height (Metric) Exterior 24.3cm
    Length (Metric) Exterior 47.1cm
    Width (Metric) Exterior 16.5cm
    Length (English) Exterior 18.5 in.

    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.

  • Description & Specifications
  • Accessories

Related Products

Product Content Feedback

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit