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← Glass to metal seals / Quartz furnaces

CTVM expertise is not restricted to glass-to-meal seals.

We manufacture closed-end quartz tube furnaces. Those furnaces are built with a stainless steel collar and a borosilicate glass - quartz graded seal - QPGS. The closed-end quartz tube is welded onto this QPGS with a length specified by the customer. The seal assembly is TIG welded on CF type flange.

We custom-manufacture those furnaces and can suit tube and flange dimensions to your specifications. 

 

Typical design dimensions : 

- tube / CF flange : Ø 12 / CF16 up to Ø 48 / CF40 

- length variations from 250 to 900 mm. 

 

Properties :

- the quartz tube can be used at high temperatures up to about 1000°c

- leak-tightness of the assembly guaranteed and tested to 1.10-9 mbar/l/sec

 

 

Reference