Tubes, capillary tubes and bars BORAN®Tubes, capillary tubes and bars
Made of Borosilicate glass Boran
temperature-change resistant ~ pressure resistant
 Tubes, capillary tubes and bars made of Borosilicate glass BORAN® made by MENNES GmbH are known for their stability and their resistance against quick temperature changes. They are used in industrial plant construction, in the laboratory industry or the lighting industry.
 We can offer drillings, millings, cut-outs and special processing on high-performance machines. Tube tapering and tube flaring is also possible on request. Sealing of two or more tube sections is realizable.
The maximum length, that has ever been produced by us, amounts to 8600 mm.
 Special designs such as segments, half shells, pipe elbows, etc. are possible according customer specifications. Printings such as logos, scales or ornaments may also be applied.
Inner or outer glazing of glass cylinders can be realized as well according customer requests.
We are happy to advise you on the right choice of the appropriate model.
Technical Data
| Max.service life temporary: |
500°C |
| permanent load: |
360°C |
calculation of pressure resistance (p) if wall thickness (WD) + external diameter
(AD) are given: |
p =WD • 20 •
AD - WD |
Median linear coefficient of thermal expansion a (20°C, 300°C)
according to DIN ISO 7991 |
3,3 • 10-6 K-1 |
Here you find all important data including all technical details.
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