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Vacuum Sealing Assembly for 80 mm dia Tube Furnace with Valve / Vacuum Meter - EQ-FL-80

Sale Price: Starting at USD$360.95
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This is a pair of smart sealing assembly for tube vacuum furnace to tighten both ends of OD 80 mm tube without any welding and gluing.

    • 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 attached, and on the other end has the only 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.
    • Designed for MTI OTF-1200X-80 tube furnace.
    • Excellent for any type of tubing: ceramic, glass, quartz and steel pipe.
    • The assembly kit will seal 80 - 82 mm diameter (3-1/8 ~~ 3-1/4" Dia) of the quartz tube.
Package included  One flange with gauge and valve, one flange with valve, two steel sealing rings, four high-temperature silicone O-rings  ( 300oC Max., and six screws
Dimensions        Click to enlarge          
Installation video
How to seal a quartz tube using the assembly, please follow the photos below:
  • Must put a refractory tube block in front of the flange (see picture below) to avoid heat radiation melt silicone O-ring. You 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 gasses with our flange assemblies. Please contact us with any concerns.

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1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor cost.
3. The prices listed are subject to change without notice.