Single Tube LN2 Feedthroughs

Pfeiffer’ line of liquid nitrogen feedthroughs includes the most commonly required for medium, high and ultra-high vacuum applications. Single tube liquid nitrogen feedthroughs are constructed with single coaxial tube geometries and are available without fittings or terminated with industry standard Swagelok or Cajon VCR fittings. A thermal barrier effectively reduces condensation and ice buildup on the atmosphere side of the feedthrough around the mounting flange interface, protecting the seal's integrity. This is necessary because of the extreme thermal gradients encountered with liquid nitrogen. Tubing is .25 and .375 inch OD with CF or NW flanges.