High-Quality, American-Made Lab Equipment


    30 Position MULTIVAP
    Nitrogen Evaporator


    The 30 position MULTIVAP nitrogen blowdown evaporator is a high temperature dry block model. This instrument contains a rectangular gas distribution system mounted on a frame and dual post assembly. The manifold delivers nitrogen gas to the needles or glass pipettes, which direct the gas onto the sample’s surface. This method results in rapid solvent evaporation and sample concentration. In order to conserve nitrogen gas, the manifold has a toggle switch for every row of 5 samples, which allows individual rows to be shut off when evaporating batches of less than 30 samples. Nitrogen gas flow is also controlled by an adjustable flow meter and a built-in pressure regulator.

    The 30 position MULTIVAP parallel evaporator uses a heated aluminum dry block to reach evaporative temperatures ranging from 30°C to 120°C. An unheated version is available for evaporations that will be performed at ambient temperatures. Sample blocks are customized for the user’s sample size for maximum and even heat transfer. Inserts can be customized for sample vial outside diameters of 10-30 mm.

    One set of inserts is included with the instrument. Since these inserts and heat blocks are made-to-order, we will request that you deliver us three sample vials for each unique vial size upon placing an order for a 30, 48 or 80 Position MULTIVAP. In situations where shipping sample vials to Organomation is not possible, we need precise measurements of your sample vials to be taken. All models can withstand contact with organic solvents; however acid resistant models are also available for use with corrosive solutions.


    Evaporate batches of up to 30 samples, with outside diameters of up to 30 mm


    Digital controls allow exact temperature regulation


    Conserve gas by using ON/OFF valve for rows not in use


    Uniform evaporation across all samples with no adjustment needed between runs

    HubSpot Video


    • Adjustable flow meter, 0-25 lpm

    • Dual band hoist spring assembly

    • High temperature limit switch for safety

    • Safety control cover plate

    • Digital temperature controller

    • Electronic timer

    • Nitrogen filter

    • Gas distribution manifold

    • Built-in pressure reducing regulator


    • 220v wiring harness (Option Code -2)

    • Z-Purge/positive pressure purge case (Option Code -Z)

    • Acid resistant coating on instrument and needles (Option Code -RT)

    • Needle guide plate for small tubes 15 mm and under

    • Pasteur pipette adapters in place of needles (Option Code -P)

    • Manifold and stand only: no heating platform (Option Code -O)


    Sarah & Connor CTA


    Instrumental Name 30 Position MULTIVAP
    Heater Type Dry Block None
    Instrumental Catalog Number 11830 11830-O
    Number of Sample Positions 30 30
    Overall Dimension (w x d x h) 16 x 14 x 30 in
    41 x 36 x 76 cm
    13 x 15 x 26 in
    33 x 38 x 66 cm
    Sample Holder Layout Rectangular Rectangular
    Gas Manifold Layout 5 x 6 Array 5 x 6 Array
    Center to Center Spacing Between Positions 1.31 in
    3.33 cm
    1.31 in
    3.33 cm
    Test Tube Diameter 16-30 mm OD 16-30 mm OD
    Gas Flow Control On/Off Valve Every row of 5 Every row of 5
    Stainless Steel Needles
    (Length & Gauge)
    4.0 in x 19 ga
    102 mm x 19 ga
    4.0 x 19 ga
    102 mm x 19 ga
    Needle Guide Optional Optional
    Hoist Assembly Dual Pulley & Band Springs Dual Pulley & Band Springs
    Integrated Control Box with Timer for Nitrogen & Heat Standard N/A
    Built-in Gas Regulator Input 30-110 psig 30-110 psig
    Acid Resistant Coating (Option Code -RT) Optional Optional
    OA-SYS Heating Device Specifications
    Model Number 9156 N/A
    Outside Dimensions
    (w x d x h)
    16 x 14 x 6.5 in
    41 x 36 x 15 cm
    Total Wattage 900 W N/A
    Temperature Range 30-120 °C Ambient
    Temperature Controller Type
    Digital Electronic with LED Display N/A
    Controller Accuracy +/- 2 °C N/A



    • Nitrogen generator (cat# NA1955)

    • Custom sized inserts (cat#NA1831, cat# NA1832)

    • Pasteur pipette adapters (cat# NA0636, cannot be used with needle guide)

    • Luer plugs (cat# NA1307)

    • Various needle sizes and gauges