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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 mmEvaporate large volume samples of up to 100 mL each


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

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)
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

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