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

                                   Baffle-Throttle Easy-open/Fast Cleaning


  • Leak rate: <1x10-9 std cc/sec He

  • Vacuum rating: 1x10-8 Torr (1.3x10-8 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                Ring Type (Flangeless)                     Conical-shaped

Low cost baffles