Borosilicate glass tube
ACI not only provides replacement glass cylinders and tubes for its own tube-sight glasses and level gauges but also offers glass tubes, glass cylinders, and sections made of DURAN® borosilicate glass 3.3, as well as SIMAX® glass tubes.
Borosilicate glass 3.3 is resistant to water, neutral media, acidic media, strong acids and their mixtures, as well as chlorine, bromine, iodine, and organic substances. It lasts longer at higher temperatures above 100 °C and exceeds many metals and other materials in its resistance. However, borosilicate glass has its limits and is not resistant to hydrofluoric acid, concentrated phosphoric acid, and strong alkalis. Especially at high temperatures (>100 °C), "glass corrosion" occurs, and the glass surface abrades.
Technical Glass - Borosilicate Glass Tube
Temperature resistances for technical glasses/glass tubes and cylinders:
- Borosilicate glass/DURAN® glass is permissible for operating temperatures of up to 500°C. From 525°C, the glass begins to lose its stability. For DURAN® glass tubes supplied by us, we limit their use to -70°C at minus temperatures. The maximum temperature change resistance is 100 K.
Chemical resistance of technical glasses/glass tubes and cylinders:
- Water resistance class (DIN ISO 719) - Class 1
- Acid class (DIN 12 116) - Class 1
- Alkali class (DIN ISO 695) - Class 2
Machining of DURAN® or SIMAX® Borosilicate Glass Tube 3.3
Tube cuts/cutting to length:
Using modern cutting technology, the glass tubes are cut using diamond saws. The length can range from a few millimeters up to 1500 mm. As a result of the sawing process, the end faces of the tube section are matt and, to a certain extent, sharp-edged. Alternatively, thermal cutting of the glass tube is also used, here the end faces of the tube sections are blank and definitely sharp-edged. We can then process the edges and end faces for you as required. These can be finely ground or fused. The outer edges as well as the inner edges can be chamfered/deburred. By fusing the cut edges, the glass tube then regains the typical shine of a glass surface.
Pipe Dimensions:
Glass tubes made of DURAN® or SIMAX® are supplied as standard up to a length of 1500 mm. The diameters start at 3 mm and go up to 465 mm. It is also possible to assemble glass tubes. Depending on the application, we can also assemble glass tubes for you so that we can supply glass tubes made of DURAN® or SIMAX® of up to 3000 mm length and more. If you require high-precision glass, we have the option of using specially calibrated glass tubes.
