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Glasstubes and rods

Glass products fabricated by way of the drawn tubes machining (diamond wheel cutting) include different insulators (in the form of beads with one, several or no channels), bodies for magnet guided contacts (reed-switches) or semiconductor devices and technological equipment for textile industry companies.

TEGS Ltd. fabricates glass products of general purpose (tubes, capillaries, rods) according to OST 11 PО.735.000; OST 11 PО.735.001-73; OST 11 PО.735.002-73 or according to special requirements.


The main advantage of our technology is the ready product geometric parameters high accuracy and possibility to fulfill custom orders (differing from generally accepted industry standards). We are ready to review the possibility of fabrication of practically any products corresponding to the below stated specifications. All products can be fabricated of different glass types whose list with their characteristics is here.

tube_ — outer diameter (OD) is from 2.5 to 44mm (ОSТ 11 PО.735.002-73);
— length (L) is up to 2500mm*;
* depending on OD
We can :
fabricate glass tubes with the specified dimensions, differing from the standard ones, and with any cross section geometry (ellipse, circle, hexagon, triangle, etc).

In industry devices for liquid and gas flow rate determination (flow meters) are widely used. Their basic element is a tube with linearly-varying diameter.
Our company fabricates cone tubes for flow meters RM-02, RM-04, RM-06 (GOSТ 13045-81) and tubes with the geometry specified by the customer.


We can :
fabricate glass capillaries ith the specified dimensions, differing from the standard ones, and with any cross section geometry  (ellipse, circle, hexagon, triangle, etc).
Capillaries cross section
cap -outer diameter(OD) is from 0.1mm;
-internal diameter (ID) is from 10μм*;
-length (L) is
-up to 2500mm (for capillaries with outer diameter 1.0-4.0mm);
-unlimited (for capillaries with outer diameter 0.1-1.0mm)
fabrication accuracy is up to 0.5%.
* depending on OD

If it is necessary we wind capillaries and rods with the outer diameter up to 1 mm. After winding the fiber diameter variation does not exceed 1,5%.


Technologies, developed at our company, allow fabricating high accuracy rods with different cross section geometry from electron-tube, optical and medical purpose glass in small quantities and in maximum short time. We fabricate one and multicomponent rods with the specified structure and parameters using materials agreeing in thermophysical properties, for example, in thermal coefficient of linear expansion (TCLE) and viscosity.

We can :
— fabricate rods with any cross section geometry (ellipse, circle, hexagon, triangle and others);
— fabricate rods with the diameter linearly-varying according to a specified law (for example cone-shaped ones), rod lenses.
rod -outer diameter (OD) is 1-40 mm;
-length (L) is up to 2500* mm;
-fabrication accuracy is up to 0.5%.
* depending on OD

Glass grades used for rods fabrication are in the  table. Rods may be fabricated according to OST 11 PО.735.002-73 or according to the Customer’s requirements.