OVICTOR OV-IN-NB series of non-blind glass plate level gauge is designed based on the principle of connector. It mainly consists of level meter body, upper valve (gas valve), lower valve (liquid valve), drain valve, safety ball and so on. The upper and lower flanges of the liquid level gauge are connected with the upper and lower flanges of the container to form a connector, which directly indicates the actual height of the liquid level in the container through the transparent glass. It is suitable for directly indicating the liquid level of the medium in various towers, tanks, troughs, boxes and other containers.

The upper and lower valves of the liquid level meter are equipped with safety steel balls. When the glass plate is ruptured or damaged, the steel ball can automatically close the liquid flow channel under the action of the pressure in the container to prevent the liquid level from continuing to flow out. Liquid level meter can achieve anti-corrosion, heat preservation, frost prevention, lighting and other functions by changing the material of parts or adding some accessory parts.

OVICTOR OV-IN-NB series of non-blind glass plate liquid level gauge is used to directly indicate the height of the liquid level in the container, which is a kind of flange center-to-center length = visible length of the transparent liquid level gauge, which is characterized by the indication of the non-blind zone, so it is called non-blind sight glass liquid level gauge. Widely used in petroleum, chemical, electric power, metallurgy and other fields, especially suitable for heavy oil, residual oil and pure ammonia large storage tank level precision measurement.

Product Features

• Simple installation and maintenance.
• Does not require electricity to operate. Still works in the event of a power outage.
• Directly observe the liquid level position-no calibration is necessary.
• The visual direction can be adjusted arbitrarily within 360° (medium and low pressure type);
• Reasonable sealing structure, no leakage; Low maintenance costs;

There are two types of Non-blind glass plate level gauge: Non-blind transparent glass level gauge and Non-blind reflex glass level gauge.

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 measured medium, such as: water, gasoline, kerosene and so on. Medium density, if you do not know the density, you can tell us the name of the medium, mixed liquids to know which liquids are composed of;
3. Measuring range of the instrument: the center distance of the two flanges;
4. Operating pressure: the highest withstand pressure;
5. Operating temperature: the minimum and maximum temperature of the measuring liquid;
6. Material requirements: such as: SS304, 316L, carbon steel, if you do not know which material, you can ask us (we will choose different materials according to different media);
7. Whether supporting the supply of flanges, bolts, nuts, valves, sealing washers and other accessories;
8. Flange standard: the nominal diameter of the flange, the more widely used flange is DN20 or DN25;
9. Special requirements: please specify in detail before ordering, such as whether to take the remote transmission, thermal insulation jacket and so on.