Overview of quartz tube double color water level gauge
SF303 and original (1030a) quartz double color water level gauge is a secondary instrument which can directly display the liquid level position by optical principle, and can be widely used in high and medium pressure boiler drum and reservoir. The water phase is green and the vapor phase is red when the water vehicles coexist. The water level boundary is very obvious and easy to observe. When the water level is full, the whole string is green, and when the steam is full, the whole string is red. This completely overcomes the shortcomings of ordinary water level meters that cannot be distinguished when they are full of water or full steam, thus causing serious accidents. At the same time, the meter has the advantages of simple structure, convenient maintenance, safety and reliability
Structure principle of quartz tube double color water level gauge
SF303, 304, 1030a two-color water level gauge consists of upper valve, lower valve, body, drain valve, balance tube and lamp shade.
In addition to manual full opening and closing, the upper and lower valves 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 will push against the safety valve seat at high speed under the impact of high pressure steam and water, and automatically close the upper and lower channels of the table body until the upper and lower valves are closed manually. The reset of the insurance steel ball is achieved by balancing the pressure balance and making the self weight of the insurance steel ball. Therefore, there will be no false water level and other adverse phenomena. At the same time, in addition to the special protective cover, the water level gauge body itself is an excellent protective cover, so it is very safe and reliable.