CRVpro Direct Drive Rotary Vane Vacuum Pump

Product Code WELCH-3401-01

AvailabilityIn stock

$2,549.99 - $5,900.00
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  • Product Details

    Suggested Applications

    • Vacuum Oven
    The new CRVpro family of direct drive vacuum pumps offers increased reliability and longer service interval vs. other direct drive rotary vane vacuum pumps. The CRVpro family consumes up to 36% less oil than comparable pumps. Three features drive these benefits: 
    • Runs 10°C cooler than comparable pumps. Slows corrosion. 
    • Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals. 
    • Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts. 
    The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection. 

      Suitable applications include freeze drying, degassing, vacuum ovens and concentrators.

      3041-01 is wired for North American 115V, 60Hz operation. Includes North American line cord, vacuum inlet hose barb suitable for gum rubber hose from 5/8" to 3/4" ID, and a charge of oil. 

      3042-01 is wired for North American 230V, 60Hz operation. Includes 230V North American line cord, UK cord, and skuko cord, and a charge of oil. 

      3086E-01 comes with an explosion proof motor. Conduit wiring installation required. No cord, plug, or switch provided. 

      Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.

        CRVpro4 CRVpro6 CRVpro8 CRVpro16 CRVpro24 CRVpro30
      Free Air Displacement @ 60 Hz, cfm (L/min) 2.8 (78) 4.2 (118) 5.6 (158) 12.8 (363) 18.3 (519) 22.1 (627)
      Free Air Displacement @ 50 Hz, m³/hr (L/min) 4 (67) 6 (100) 8 (133) 18.3 (305) 26.2(436) 33.1 (551)
      Ultimate Pressure, torr (mbar) 5x10⁻⁴ (4x10⁻⁴) 5x10⁻⁴ (4x10⁻⁴) 5x10⁻⁴ (4x10⁻⁴) 3x10⁻⁴ (2x10⁻⁴) 3x10⁻⁴ (2x10⁻⁴) 3x10⁻⁴ (2x10⁻⁴)
      Noise Level, dBA 50 50 50 55 55 55
      Motor Speed, RPM, @60Hz, @50Hz 1740 (1450) 1740 (1450) 1740 (1450) 1750 (1450) 1750 (1450)
      1750 (1450)
      Motor Power, HP (kW) 0.4 (0.5) 0.4 (0.5) 0.4 (0.5) 1.1 (0.85) 1.1 (0.85) 1.1 (0.85)
      Oil Capacity, mL 1150 1150 1000 2400 2200 2100
      Connection Flanges NW 16 NW 16 NW 16 NW25 NW25 NW25
      Inlet Hose Connection* 5/8" to 3/4" 5/8" to 3/4" 5/8" to 3/4" 5/8" to 3/4" 5/8" to 3/4" 5/8" to 3/4"
      Weight, lbs (kg) 46.3 (21) 48.5 (22) 49.6 (22.5) 81.6 (37) 84.9 (38.5) 39.5 (87)
      Dimensions, LxWxH, in (mm) 18.2x6.1x9.1 (463x157x230) 18.2x6.1x9.1 (463x157x230) 18.2x6.1x9.1 (463x157x230) 22.4x8.1x11.4 (569x206x289) 22.4x8.1x11.4 (569x206x289) 22.4x8.1x11.4 (569x206x289)


    Local Delivery

    We offer delivery services for large orders to customers from Central California all the way to San Diego. Please call our sales team for more information on weekly, bi-weekly, or monthly deliveries and pricing. 626.332.7744


    Shipping Time

    Our main warehouse is located near Los Angeles, you can use the map below to estimate delivery time. Most orders ship one business day after the order is placed, then the transit days will follow. Below the map you will find exceptions to these rules for certain products.

    Some items we sell may be warehoused in Amazon's warehouses across the US. If the item you order happens to be in on of their warehouses it will generally arrive in 3 days. If you need to know about a specific item please feel free to contact us and we'll let you know.

    Larger and heavier items have to be shipped via LTL Freight. LTL shipments tend to take longer to arrive, but they have the benefit of being much safer for heavy and delicate items. If your order has to be shipped by LTL Freight we will contact you to find out if the delivery address is a residential or commercial address, and whether a loading dock or forklift is available. The freight company will call you to arrange a delivery appointment, usually a day before.


    Shipping Costs

    The cost of shipping varies based on where you live, how much the order weighs, and the value of the order. We've outline our shipping guidelines below:

    To Contiguous US:

    • Orders over $100 ship free
    • Orders $99.99 and under are a $10 flat fee

    To Alaska, Hawaii, and other US Territories:

     Cost will be calculated by weight at time of checkout.

    To Other Countries:
    We currently only offer shipping to addresses within the US. However, you can utilize our shipping partner Shipito to forward the package to you. View Details Here

    CRVpro Direct Drive Rotary Vane Vacuum Pump

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