User Menu

Liquid Nitrogen Cold Trap

4″ Liquid Nitrogen Cold Trap | LN2



Useful for those individuals looking to create cold traps.


  • Ideal cold trap for those that have a convenient liquid nitrogen source
  • Excellent molecule trapping capability due to -187 degree liquid Nitrogen
  • Helps achieve lower base pressure
  • High pumping speed for water vapor at the trapping surface

Product Options

SKU: Cold Trap Straight-1'OD-NW16 Categories: , , Tag:
  • Description
  • Additional Information
  • Reviews (0)
  • Product Inquiry

Product Description

4″ Liquid Nitrogen Cold Trap | LN2

  • Liquid Nitrogen Cold traps are of the “cold thimble” design | Surface of the cold thimble containing liquid nitrogen at -187°C, being exposed to the vacuum system, rapidly condenses molecules in the vapor phase
  • Action provides the trapping effect and cryo pumping especially for water vapor the most common condensable in vacuum systems.
  • Pumping speed for water vapor at the trapping surface is 95 liters/sec. per sq. inch

Benefits of Cold Trap for Distillation

  • Vapor pressure for water vapor at the cold thimble is reduced to 10-21Torr, “theoretical,” producing a low base vacuum
  • Other gases found in vacuum processes will be sublimated or liquefied at the cold trapping surface
  • This effect provides a convenient trapping or collecting mechanism


4″ Liquid Nitrogen Cold Trap Features:

  • Electropolished 304 Stainless Steel Construction
  • Easily removable cold thimble
  • Electropolished cold thimble and trap interior | Provides resistance to corrosion and superior vacuum compatibility |Reduces the effect of radiant heat on the cold surface

DigiVac Products Used in Distillation Set-ups

Additional Information

Shipping Dimensions 18 x 18 x 6 in
Port Size

1″ O.D. Tube, NW16


There are no reviews yet.

Be the first to review “4″ Liquid Nitrogen Cold Trap | LN2”

Product Inquiry