Glass tube level gauge is a direct-reading instrument designed according to the principle of connection device. It mainly consists of a glass tube, scale, protective casing, upper and lower valves and flange (or thread).It has the characteristics of simple structure, easy maintenance, and long service life. It is widely used to measure the liquid level height of various tanks, towers, containers, boxes and other vessels. The instrument is equipped with steel balls in the upper and lower valves, when the glass tube is destroyed by accident, the steel balls will block the channel under the pressure in the container, so that the container will be automatically sealed, which can prevent the liquid in the container from further flowing out. The valve end of the meter is equipped with a plug screw that can be used for sampling or releasing the remaining liquid in the meter during inspection.
Product Features
- Simple installationand 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.
- It has a quick shut-off device for vapor and liquid leakage;
- Low maintenance costs;
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Specification of Threaded Glass Tube Level Gauge With Stainless Steel Sheath |
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| Center to center distance |
300–2000 mm |
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Body Material |
carbon steel or SS304, SS316 |
| Operating Temperature |
≤ 180 °C |
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Working pressure |
≤ 1.6Mpa |
| Glass Tube Material |
Borosilicate glass; Quartz glass tube; Transparent Teflon tube; Acrylic plastic |
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Thread standard |
G; ZG; BSP; BSPP; BSPT;NPT; |
| Way of Connection |
Thread |
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:
- Model specification;
- The name of the medium to be measured, such as: water, petrol, paraffin, etc..
- Material requirements: e.g. SS304, 316L, carbon steel;
- Connection: flange or thread;
- Flange standard: nominal diameter of the flange, currently used more DN20 or DN25 flange;
- Measuring range of the instrument: the centre distance of two flanges;
- Material of glass tube, diameter, length, wall thickness;
- Working pressure: the highest withstand pressure;
- Working temperature: minimum and maximum temperature of the measuring liquid;
- Special requirements: please explain in detail before ordering, such as whether to take the remote transmission, thermal insulation jacket and so on.
