A new type of liquid level gauge that combines the advantages of glass tube level gauge, colored quartz tube level gauge, plate level gauge, and boiler water level gauge. (Overcoming the weaknesses of the original glass tube level gauge, such as being afraid of breakage, not sturdy, unsafe, not pressure resistant, unclear display, and low operating temperature). It can to some extent replace high-temperature glass plate level gauges, high-pressure, low specific gravity magnetic flip column level gauges, and blind spot level gauges. And it is cheaper than liquid level gauges with the same characteristics, becoming a hot topic of market attention in the new century.
Transparent glass tube level gaugeThe UGD series monochrome glass tube level gauge is a new type of level gauge that combines the advantages of glass tube level gauge, colored quartz tube level gauge, plate level gauge, and boiler level gauge. Overcoming the original glass tube level gauge's fear of breakage, lack of sturdiness, insecurity, inability to withstand pressure, unclear display, and low operating temperature.
Weakness). It can to some extent replace high-temperature glass plate level gauges, high-pressure, low specific gravity magnetic flip column level gauges, and blind spot level gauges. And it is cheaper than liquid level gauges with the same characteristics, becoming a hot topic of market attention in the new century.

Transparent glass tube level gauge

Working principle: The upper and lower valves of the instrument are equipped with connecting flanges, which are connected to the measured container to form a connector, so that the height of the medium liquid level in the container can be directly displayed on the glass tube. The valves on the instrument are equipped with safety steel balls. When the glass is accidentally broken, the steel balls can block the channel under the working pressure of the container, so that the valve automatically seals to prevent the medium in the container from continuing to flow out. The lower end of the instrument is equipped with a drain valve for sampling, maintenance, flushing, or liquid discharge.
characteristic:
● Direct reading instrument, accurate and reliable reading
● Simple structure and easy maintenance
● Collecting UG UB、 Multiple advantages of UGS (UNS) and low price
Measurement range (installation center distance): 350, 440, 500, 600, 800, 1000, 1200, 1400, 1700, 2000mm
Working pressure of the tested medium: 1.0 (R-PP), 1.6 (glass tube), 2.5, 4.0, 6.4MPa (quartz tube)
● Working temperature of the tested medium:- 10℃~+450℃
Automatic sealing pressure of steel ball: greater than 0.2MPa Weight: 15~30kg
● Heat tracing steam pressure: ≤ 0.6MPa
● Steam jacket joint: G1/2 "external thread
Interface flange: Adopting the flange standard HG20592~20635-97 issued by the Ministry of Chemical Industry in 1997. Flange diameter DN20, DN25， If users need to adopt other standards (such as GB, ANSI, DIN, etc.), they can design according to their needs.

center distanceLAnd the scale of the rulerHRelationship:
(Unit: Millimeters)

Installation, use, and maintenance:
● Installation
The liquid level gauge is a precision instrument, and should be handled with care during transportation, handling, unpacking, and installation. It should not be hit or knocked to prevent the glass tube from breaking. When the liquid level gauge leaves the factory, it is tested with 1.5 times PN pressure, and users are not allowed to disassemble the glass tube without authorization.
● Use
After the flanges of the upper and lower valves of the liquid level gauge are installed and connected to the flanges of the upper and lower outlet pipes of the container, slowly open the upper and lower valves to allow the liquid to flush the inner wall. If there is any unclear display, it will become clear after the pressure stabilizes. When the liquid in the container is at high temperature, the glass tube should be preheated for half an hour before being put into operation to prevent the glass tube from suddenly breaking due to high temperature.
● Maintenance
After long-term use, the liquid level gauge needs to be regularly flushed and drained. First, close the upper and lower valves, then open the drain valve to empty the liquid in the pipe and close it. Then, slightly open the lower valve to allow the liquid to fill the meter body and close it. Finally, slightly open the upper valve and open the drain valve, repeatedly flushing until it is completely drained.
If a needle valve is selected during normal operation, the number of rotations for the valve stem to exit should not be less than 4. When the glass tube is damaged, ensure that the steel ball can automatically seal.

Model and specification: