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Water Cold Sealing Flange with Valves & Vacuum Gauge for 100mm dia.Tube - EQ-FG-100WC

Sale Price: Starting at USD$598.00
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Left, right or both:
This is a pair of sealing flange with the water cooling jacket valve for OD 100- 102 mm ( 4" ) diameter processing tube. If you cannot use a ceramic block in two ends of the tube, you must use the water cooling jacket to keep the flange cool (otherwise silicone o-ring may get damaged)


  • Made of Stainless Steel with double high-temperature silicon O-rings on the flange.  
  • Stainless steel needle valve with 1/4" pipe adapter.    
  • The assembly kit will seal both ends of a 100-102 mm diameter ceramic and quartz tube.
  • A vacuum gauge is installed on one side of the flange.
  • Max. The furnace working temperature is 1150°C without thermal block if the tube furnace is installed with this water cold flange.
  • You  may choose the left side, the right side, and the full set of the flange at the product option bar
  • Please always use a recirculating water chiller ( see related product below ) to save water.
Vacuum  level


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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1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Prices vary from country to country.
2. We may add extra charges for paper orders and NET 30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.