Quarts tube level gauge is a new exploited produce in 1982s at

Tieling Tieguang instrument & apparatus Co., Ltd. The produce is won

state patent and passed provincial technological in 1990 year. It is

renewal produce of general glass tube level gauge. It is heat-

resisting , clear show than general glass tube level gauge. It

applies to keep watch on the level of pressure container and liquid

store-tank in petroleum chemical industry industrial boiler hearting

apparatus and so on.
Working principle .construction and technological parameter ：
　　1、 quartz tube level gauge is according to the transmission and

glint principle of the light ,pass through design of the optical

system, and achieve that the steam is red; the water is green . Owing

to red and green have a big tudge ,the level shows clearly, the

demarcation line of red and green is clear. It is full green when it

is full liquid, conversely, it is full red .So we can judge whether

it id liquid or not, avoid the accident of full liquid or nothing

liquid, and raise the reliability of container’s moving. The level

gauge has safe ball non-frost function on steam liquid valve, in case

quarts tube level gauge burst accidentally, the safe ball can cut off

steam-liquid thoroughfare, defer liquid leaking under 0.5Mpa ,so we

can repair the level gauge in time.
　　2、Overall structure fig.
quarts tube level gauge overall structure fig
3、Technological parameter
　　　　(1) Working press: 1.6, 2.5, 4.0, 6.4Mpa;
　　　　(2) Working temperature :-196degc～400degc;
　　　　(3) Standard
4 Coupling flange : DN20 and corresponding press grade JB/T82.2-94,
　　　　　HJ20592-97. The consumer may provide standard;
　　　　(5) Clip case press : ≥0.5Mpa.
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