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Water Cold Sealing Flange for 82mm dia.Tube - FL82KF25W

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This is a pair of sealing flange with water cooling ports for OD 82 - 84 mm diameter processing tube. If you cannot use a ceramic block in two end of tube, you must use the water cooling jacket to keep flange cool (otherwise silicone o-ring may get damage).
  • Made of Stainless Steel with double high-temperature silicone O-rings on the flange.  
  • Left side flange has a barbed needle valve,1/4" feedthrough for thermocouple inserted, and 1/8 NPS valve with installed  Mechanical Pressure Gauge. 
  • Righ side flange has a KF25 port with a barbed needle valve. 
  • The assembly kit will seal one end of 82 - 84 mm diameter ceramic and quartz tube.
  • Vacuum meter is installed in one side of flange.
  • Note:  You may order Digital Temperature Controlled Recirculating Water Chiller with 16L / min Flow to cool the flange and save water. ( click picture below right to order )
Vacuum level
Installation Video            
  • Must put a refractory tube block between the flange and the sample to avoid melting the silicone O-ring by heat radiation. Please order a ceramic block in related products.
  • Please do not over tighten the three hex screws on the flanges to avoid overpressure incidents. The recommended torque is 35~40 inch-lbs.
  • For liability considerations, MTI does not recommend or endorse the use of any toxic, flammable or corrosive gases with our flange assemblies. Please contact us with any concerns.
Application Notes
  • Max. furnace working temperature is 1100ºC without thermal block if tube furnace is installed with this water cold flange
  • Quartz thermal block is recommended for using the furnace with working temperature 1100ºC or above.
  • Please always use recirculating water chiller for water saving and protection.
Related Sealing flanges for 80mm O.D tube
Please click the picture above to choose other size flanges from 1" to 11"

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