+44 (0)1932 222314 sales@moores-glass.co.uk


Semi calibrated tubes

Moores Glassworks manufactures various shapes of semi-calibrated tubes and profiles in most types of glasses (borosilicate glasses, soda glass, lead glass and electronic glasses). They are used both in industrial and decorative applications. Custom made products are available starting from 10 metres. Specialized drawing towers allow mass production of thousands of metres.

Various shapes of semi-calibrated tubes and profiles available

The semi-calibrted tube has a better accuracy than standard tubes on the outside or inside diameter, but is not as accurate as a calibrated tube (under vacuum). The main advantage is the price as the precision of the calibrated tube is not required.

Aside the precision, another possibility is to produce small quantities of non standard dimensions (diameters or wall thickness).

Profiles can be triangular, square, rectangular, hexagonal or oval.

Standard length is 1000mm but tubes and profiles can be supplied cut at any length from 5 to 1500mm.


Shapes available Round, oval, triangular, square, rectangular and hexagonal
Types of glasses Borosilicate, soda, lead and electronic
Min / max section From 10 to 60mm

Required Information

In the case of request or order, please specify:

  • The type of profile and its dimensions
  • The length
  • The type of glass
  • The quantity
Moores Glass Semi Calibrated Tubes and Profiles A graded seal is used to overcome the difference in coefficients of thermal expansion. This is done by using a series of intermediate sealing glasses between the two different glasses on each end. Category: Semi Calibrated Tubes and Profiles 5 stars, based on 1 reviews

Moores GlassWORKS

Moores GlassWORKS

Moores Glassworks has been exporting industrial glass components all over the world for nearly 40 years.

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Moores currently export industrial glass components to clients in the following countries:

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Moores Glass are a leader in glass manufacturing and has been exporting glass all over the world for nearly 40 years. 4.87 out of 5 based on 42 reviews
Suppliers of Ultra high vacuum viewports, Cathode ray tubes, Multi pin bases/stems/pinches, Photomultiplier envelopes, Graded seals, Glass condom moulds, Glass to metal seals and Hollow cathode lamp bodies
143 Hersham Road
Walton On Thames
KT12 1RR