Work Tube Selection Guide

The material, length and diameter of the work tube required for use with each furnace differs. The appropriate material as well as correctly sized work tube for each furnace can be selected from the tables below. Work tube length depends on whether the furnace will be used to work in air or with modified atmosphere/vacuum.

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Description

MTF – CTF – TZF

The furnaces are constructed with an integral ceramic tube onto which the heating element is wound. An inner “work tube” is an option to protect the integral work tube when heating in air and is essential when gas tight or vacuum tight seals are to be added. The inner “work tube” lengths are as follows:

EHA, EHC, EVA, EVC, EST & EZS – EVT & EVZ
E range furnaces are constructed without an integral ceramic tube as the heating elements are vacuum formed into the insulation. An inner “work tube” must always be used whether heating in air or to allow gas tight or vacuum tight seals to be added. The inner “work tube” lengths are as follows:

STF & TZF – VST
The tube furnaces are constructed without an integral ceramic tube. An inner “work tube” must always be supplied, to put the sample inside, whether heating in air or to allow gas tight or vacuum tight seals to be added. The inner “work tube” lengths are as follows:

GHA, GHC, GVA & GVC
G range furnaces are constructed without an integral ceramic tube as the heating elements are vacuum formed into the insulation. An inner “work tube” must always be used whether heating in air or to allow gas tight or vacuum tight seals to be added. The inner “work tube” lengths are as follows:

HST & HZS – VST & TVS
Split tube furnaces are constructed without an integral ceramic tube as the heating elements are vacuum formed into the insulation. An inner “work tube” must always be supplied, to put the sample inside, whether heating in air or to allow gas tight or vacuum tight seals to be added. The inner “work tube” lengths are as follows:

FHA & FHC – FST & FZS – HTRH & HTRH-3 – HTRV & HTRV-A
The tube furnaces are constructed without an integral ceramic tube. An inner “work tube” must always be supplied, to put the sample inside, whether heating in air or to allow gas tight or vacuum tight seals to be added. The ** marked work tube diameters are only available for short work tubes for use in air. Long work tubes for use with modified atmosphere or vacuum are limited to a maximum diameter of 100 mm:

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To make your order, please contact us at  info@polyscientific.com.my or call us at +6 06 3350 690

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