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Welch 8970 Direct Drive Vacuum Pump Rebuilt, Refurbished

    Item Number: WELCH-8970


    Warranty: 1 year past the documented date of installation.

    *Product images are for reference purposes only and do not necessarily correspond to the actual product.  

    Please call for price and availability

    IN STOCK - Please call for price and availability 855-466-6822

    Welch 8970 Direct Drive Vacuum Pump Rebuilt, Refurbished

    Welch 8920 Direct Drive Vacuum Pumps | Rotary Vane

    Compact for Moving From Lab to Lab

    • Lightweight, compact pump
    • Ultimate to < 0.003 torr (0.004mbar)
    • Integral isolation valve

    Welch Direct-Drive Vacuum Pumps are portable high performance oil-seal pumps. These pumps come with isolation devices integral to the pump to prevent oil and air contamination of your system in the event of a power failure. Pump can be ordered with an optional exhaust fitler to control exhaust oil mist.


    • Freeze Drying
    • Glove Box
    • Vacuum Manifold / Schlenk Line
    • Vacuum Ovens
    • Vacuum Distillations
    • Vacuum Roughing

    Also commonly used in OEM instrumentation and high vacuum backing pump applications

    Free Air Displacement
    cfm (l/min.) @ 60 Hz
    m3/hr (l/min.) @ 50 Hz

    25.2 (420)
    21.0 (350)
    Ult. Vac. Pressure, torr (mbar) 2 x 10-3 (0.0015)
    Sound Level, dBA 50
    Motor/Pump Speed (60 Hz) 1680
    Motor Horsepower (watts) 900 (1.21 HP)
    Oil Capacity, qt.(liters) 0.87 (0.82)
    Tubing Needed, I.D. in.(mm) 0.75 (19)
    Intake Connection(thread) NW 25
    Exhaust Connection 46.0 kg
    Exhaust Filter Included Yes
    Weight, lbs.(kg) 101 (46)
    Overall Dimensions LxWxH in.(cm) 23.2 x 13.6 x 16.5
    (59 x 34.5 x 42)
    Ship Weight, lbs.(kg) 124 (56.1)
    Shipping Carton Dimensions LxWxH in.(cm) 65 x 41 x 48
    (25.6 x 16.1 x 19)

    IVS is committed to your complete satisfaction.  To ensure the greatest success and performance of your new vacuum equipment purchase, please call an IVS representative today at 855-466-6822 or simply fill out our contact form here: Contact IVS and a Sales Engineer will contact you within 24 hours.

    Not exactly what you're looking for? Innovative Vacuum Solutions is a total solutions provider and can customize or configure your vacuum equipment. Call us toll free at 855-466-6822 and speak to a Sales Engineer to determine your specific needs.


    Our precision vacuum pump rebuild process restores worn or damaged equipment back to the original manufacturers specifications and
    costs a fraction of purchasing new components. Each unit reconditioned by IVS is supported by the most competitive,
    practical warranty in the business: one year from the documented date of installation, not shipment.

    Click here to see the full IVS Business Practical Warranty
    • IVS will safely package your product for shipment at no additional charge.
    • Buyer is responsible for all shipping arrangements and charges.
    • Please allow ten days for delivery from order date to allow for certification and shipping of your equipment.

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