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). SPECIFICATIONS Features 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 10E-2 torr by a mechanical pump 10E-5 torr by a small turbopump 10-6 torr by hi-speed turbopump Warming 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. Options 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) Related Click here to choose flange for tube from 1" to 11"
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