Bi-color quartz glass tube level gauge also called Double color quartz glass tube level indicator, Two-color quartz glass tube level gauge, Red/green quartz glass tube level gauge. It is suitable for high temperature and high pressure environment of a two-color display of the level indicator, this level indicator in the display of gas, liquid into a significant red and green two-color, the level indicator through the two ends of the upper and lower flange of the Cauchy and the vessel being measured connected to the measurement of the different colours of the gas, liquid, you can intuitively observe the position of the liquid level, there will be no vapour in the glass tube to affect the observation of results of the phenomenon.

The material of the valve of the Bi-color quartz glass tube level gauge connecting with the vessel is stainless steel or 20# steel, which has the characteristics of good resistance to high temperature, high pressure and rust, and the quartz glass tube can also be observed normally under high temperature and high pressure.

There is a self-closing stainless steel ball installed in the valve of the liquid level gauge connecting with the vessel, when the glass tube is broken due to accident, the ball will be self-closing to prevent the medium from splashing out and the vessel from losing the pressure to prevent safety accidents.

Bi-color quartz glass tube level gauge is widely used in boilers and other high temperature and high pressure environment of the liquid level observation, with a high safety coefficient, easy to install and maintain, easy maintenance, clear and intuitive measurement results, high temperature and high pressure resistance, with a certain degree of corrosion resistance and other characteristics.

Product Features

• Red and green color display, clear and intuitive measurement results
• Resistant to high temperature, high pressure, and corrosion
• Easy installation and maintenance.
• Low maintenance cost;
• It can operate without electricity.
• It has a quick closing device for steam and liquid leaks;

Why use glass level gauge

Glass level gauges have been in use for over 100 years. They give you the ability to directly view the process fluid under temperature/pressure conditions that would render most other level technologies useless.Their construction is very robust, and reliable. They define the term “simple to use”.  After installation, the only tool you will need is your eyes. Glass level gauges are relatively inexpensive as compared to most other level technologies.

Please provide the following parameters when ordering:

1. Model specification;
2. The name of the medium to be measured, such as: water, petrol, paraffin, etc..
3. Material requirements: e.g. SS304, 316L, carbon steel;
4. Connection: flange or thread;
5. Flange standard: nominal diameter of the flange, currently used more DN20 or DN25 flange;
6. Measuring range of the instrument: the centre distance of two flanges;
7. Material of glass tube, diameter, length, wall thickness;
8. Working pressure: the highest withstand pressure;
9. Working temperature: minimum and maximum temperature of the measuring liquid;
10. Special requirements: please explain in detail before ordering, such as whether to take the remote transmission, thermal insulation jacket and so on.