Multivap

Analytical Nitrogen Evaporators for Sample Concentration

  

Multivap Catalog No. 11350-Z

Multivap Catalog No. 11450-RT
Features:
  • Two models available in 49 or 100 positions.
  • Compact size takes minimal hood space.
  • Uses Nitrogen or air as the evaporative agent.
  • Water bath provides gentle heat.
  • Removable racks make handling large batches of samples easy.
  • Band spring hoist assembly for effortless raising or lowering of the manifold.
  • Accommodates samples in test tubes 10 to 30 mm diameter. Volumes from 1 ml to 50ml.
  • A gas flow meter with valve controls and indicates gas consumption.
  • A needle valve adiusts gas flow at each row of 7 or 10.
  • Stainless steel 4-inch x 19-gauge needles standard.
  • All metal parts are made of stainless steel, chromed brass or anodized aluminum.

System Specifications:
No. of Samples 49 100
Instr. Catalog No. 11350 11450
Bench space
(w x d x h)		 17x14x34 in.
(43x36x8 cm)		 21x18x34 in
(53x46x86 cm)
Test tube size range 10 to 30 mm 10 to 30 mm
Gas flow meter range O to 20 Ipm O to 30 Ipm

Bath Specifications:
Inside Dim.
(w x d x h)		 10x10x4.5 in
(25x25x11.5 cm)		 14x14x4.5 in
(36x36x11.5 cm)
Outside Dim.
(W X d x h)		 11x13x6 in
(30x34x15 cm)		 15x17x6 in
(38x42x15cm)
Total watts 800 W 1200 W
Voltage 120 or 240 V
Hertz 50 or 60 Hz
Temperature range 30° to 70° C
Accuracy ±2°C
The instrument consists of a rectangular gas distribution system mounted on a frame and stand assembly. Test tubes are loaded in batches of 49 or 100 in a square stainless steel rack. Each row and column is numbered. The gas at 10 to 15 psig passes through an adjustable flow meter to the distribution manifold. Each row of 7 or 10 is controlled by a valve. Needles or glass pipets blow gas onto the surface of the solution resulting in
rapid evaporation of the solvent. All materials used are laboratory quality and can withstand contact with organic solvents. Acid resistant models are available for corrosive solutions.
The rectangular stainless steel water bath is thermostatically controlled and will accurately maintain water temperature from 30° to 70° C. It is equipped with a water-level device and a high-temperature limit switch. Also optional are an electrical GFCI plug and an intrinsically-safe purged case. The bath is UL/CUL approved for laboratory use.