thermometer capillary glass

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Product Detail


Supply Ablility:100

Delivery Time:2018-08-13

Product detail: 

Thermometer Capillary Tubes Can Be Prismatic and Round

6 white capillary tubes and 6 yellow ones on a light blue background.

CTT-01: A capillary tube is used in the thermometer to indicate the temperature scale.

The thermometer capillary glass tube, also called thermometer glass tube, glass tube, glass capillary tube and thin glass tube, can be divided into prismatic and round type with white backed or yellow backed according to their shape.

A thermometer glass tube is welded to the temperature sensing bubble. When the temperature changes, the measuring liquid column moves up and down within the capillary hole. Usually the scale of the thermometer is located on the capillary tube.


  • Material: soda-lime and borosilicate glass.
  • I.D.: 0.02–0.50 mm.
  • O.D.: 3.0–8.0 mm.
  • Length: 640/730/1000 mm.
  • Shape: Round or prismatic.
  • Color: White or yellow backed colors.
  • The sizes can be customized according to your requirements.
A prismatic yellow tube and a round yellow capillary tube are in hand on black background.

CTT-02: Prismatic and round type capillary tubes.

2 yellow and 1 white capillary tubes on black background.

CTT-03: Yellow and white capillary tubes are for different applications.


  • High measurement precision.
  • High temperature resistance.
  • Corrosion resistance.


Thermometer capillary tubes can be applied in the various general thermometers. The application is as follows:

  • Used in household thermometers.
  • Used in weather thermometers.
  • Used in industrial thermometers.
A white plastic weather thermometer with °F and °C scale mark on white background.

CTT-04: A capillary tube is used in the weather thermometer.

Four different thermometers on white background.

CTT-05: Capillary tubes in general thermometers.

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