Overview of Quartz Tube Dual Color Water Level Gauge
SF303、 The original (1030A) quartz dual color water level gauge is a secondary instrument that uses optical principles to directly display the liquid level position, and can be widely used on high and medium pressure boiler drums and reservoirs. This type of water level gauge, when water vehicles coexist, the water phase appears green and the vapor phase appears red, and the water level boundary is very clear for easy observation; When the water is full, the entire pipe column appears green, and when the steam is full, the entire pipe column appears red, completely overcoming the disadvantage of the general water level gauge being unable to distinguish between full water or full steam, which can cause serious accidents. At the same time, this watch also has the advantages of simple structure, easy maintenance, safety and reliability

The structural principle of quartz tube dual color water level gauge
The SF303, 304, 1030A dual color water level gauge consists of an upper valve, a lower valve, a body, a drain valve, a balance pipe, and a lampshade.
In addition to manual full opening and full closing, the upper and lower valves each have a safety valve seat and a safety steel ball inside the valve body. When the quartz tube is accidentally damaged, the safety steel ball is pushed against the safety valve seat at high speed under the impact of high-pressure steam water, automatically closing the upper and lower channels of the valve body until the upper and lower valves are manually closed. The reset of the safety steel ball is achieved by balancing the pressure and the weight of the safety steel ball, so there will be no adverse phenomena such as false water level. At the same time, this type of water level gauge is equipped with a special protective cover, and the water level gauge body itself is an excellent protective cover, making it very safe and reliable.