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Vacuum Sealing Assembly with Vacuum Meter / Valves for 4.5" (115 mm) dia Processing Tube - EQ-FL-114

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This is a pair of smart sealing assembly for tube vacuum furnace to tighten both ends of OD 114 - 115 mm (4,5") diameter tube without any welding and gluing.

Package included One flange with gauge and valve, one flange with valve, two steel sealing rings, four high-temperature silicone O-rings  ( 300°C Max., and six screws)
Vacuum Level
  • Made of Stainless Steel with double high-temperature silicon O-rings on each flange.
  • On one end the flange has a vacuum meter with valve, and on the other end has valve.
  • Seal tube by tightening screws on the flange without any welding and glue.
  • 1/4" hose connector in the both of ends.
  • 1/4" in diameter vacuum sealing assembly will connect with 1/4" rubber hose.
  • Excellent for any type of tubing: ceramic, glass, quartz and steel pipe.
  • The assembly kit will seal 114 mm diameter (4.5" dia. OD) ceramic and quartz tube.
Optional Parts         Pic. 1    Pic. 2          Pic. 3                                              
Installation Video
  • Must put a refractory tube block in front of the flange (see picture below) to avoid heat radiation melt silicone O-ring. You may 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.
Options Click here to choose flange for tube from 1"  to 11"                        Vacuum Pump & High Vacuum Station
Stainless Steel Sealing Flange Assembly for 1"-11" Processing Tubes                                                      Vacuum pump and high vacuum station   

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