Made up of super glass plate etc.can observe level height in the container.the steel balles in the up and down valves can stop and close the liquid .

parameter：

measuring scope: 500、800、1100、1400、1700mm 

pressure:≤0.4Mpa

temperature:≤4250℃

stema pressure:≤0.6Mpa

steam connect: M12x1 (outside)

steel ball self—closing pressure:≥ 0.3Mpa

level material:Q235—A carbon steel, 1Cr18Ni9Ti

connecting flange: JB/T82.2-94  PN4.0  DN20(convexity)  (or as  requirements)