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Cryo Products Baffles

Technical Information

Multi-Coolant Baffle, Cryo-Baffle, Water-cooled and Contamination Traps

GNB’s baffles are also called multi-coolant baffles because they can be chilled by a variety of liquids. While they are often used in conjunction with a chiller, they can be used with cool water, liquid nitrogen and other liquids. Their most common use is to trap contaminates in a vacuum system. One such contaminant is oil from a diffusion pump. In the high vacuum range, molecules of diffusion pump oil can wander from the pump and contaminate the vacuum process. With GNB’s 5-bounce design, these oil molecules are trapped and then drip harmlessly back into the pump.

    • Multi-Coolant Baffles: Baffles that are compatible with a wide range of coolants
    • Cryo-Baffles: Baffles capable of operating at temperatures below -150°C (-238°F)
    • Water-cooled Baffles: Baffles that use chilled water
    • Contamination Traps: Baffles used to prevent oil and other contaminants such as selenium from traveling through a vacuum system
    • Custom Baffles: Baffles configured per customer requests


  • Leak rate: <1×10-9 std cc/sec He
  • Vacuum rating: 1×10-8 Torr (1.3×10-8 mbar)
  • Body Material: 304 Stainless Steel
  • Chevron Material: Copper, aluminum, or stainless steel
  • Surface Finish: Bead Blasted
  • Seals: Viton A (FKM), Silicon or Buna
  • Removes moisture from system
  • Traps contaminants
  • Opening sizes: 3.0 – 35 Inches and larger per customer request
  • Fittings available per customer request
Flanged Baffles

Flanged Baffles

Ring Type (Flangeless)

Low cost baffles