Page 362 - BOLA Catalogue

Tubing - Choice and Assembly Easy assembly
First check whether your laboratory screw joint (inner diameter) fits your tubing (outer diameter). If it is still difficult to put the tubing inside the inner parts of the laboratory screw joint, a trick can be helpful. Just either sharpen the tubing with a simple sharpener or cut it diagonally. You should now be able to easily put the tubing through the inner parts.
Processing of heat shrinkable PTFE tubing
Shrinking should be done at a temperature of +340 °C +/-10 °C.
(At approx. +327 °C the appearance of PTFE changes from white to transparent). Please note that the part to be coated has to withstand
the shrinking temperature. Temperatures exceeding +350 °C lead to overheating of the heat shrinkable tubing and destroy its plastic memory (shrinking capacity). Thus, the tubing becomes unusable. Steady heating and cooling from all sides provides the best result, otherwise creases and tearing can arise. Appropriate heat sources are ovens or air heaters. We strongly advise against using gas flames as this can lead very easily to irregular overheating. Longitudinal shrinkage can occur during shrinking. The longitudinal shrinkage is approx. 15 %.
TECHNICAL INFORMATION
By the way: BOLA offers custom manufacture. From 1 piece. Hotline +49 (0) 93 46-92 86-0
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