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Water Cooled Sealing Flange for 50mm dia. Processing Tube - EQ-FG-50WC

In stock
Item Number: FL50W

Quantity Discounts

2 to 5USD$758.10
6 to 9USD$718.20
10 or moreUSD$678.30
This is a pair of sealing flange with SS water cool tubing & valve for OD 50 +/- 1.0  mm diameter processing tube. If you can not use a ceramic block in two ends of the tube, you have to use the SS water cool tubing to keep flanges 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 adaptor.     
  • 12mm push fitting for water pipes.
  • The assembly kit will seal one end of 50-52 mm diameter ceramic and quartz tube. Vacuum meter is installed on one side of the flange.
Vacuum level

Installation Video


Optional Accessories
Application Notes
  • MTI recirculating Water Cool System is the ideal tool for supplying cooling water to the flange set, please click the picture below left for more detailed products information. Click the picture below right to order.
  • 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.
  • Flange support may be needed to carry the flange weight at extra cost.
  Sealing flanges for 40 - 42 mm O.D tube ( click pic to choose another size flange )

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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.