• 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 )

• 10E-2 torr by a mechanical pump
• 10E-5 torr by a small turbopump
  
• 10-6 torr by hi-speed turbopump

• 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.

• 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.

• Please click here to order digital vacuum gauge for precision vacuum control upto 10^-4 torr
• For CVD application, please choose anti-corrosive vacuum gauge ( click pic below left 2 )
• You can choose the various end of fitting as options ( click here to order separately )
• You may click here order a flowmeter to control gas flowing 
• You may order flange support to avoid tube turning ( picture below right)

Click here to choose flange for tube from 1" to 11"