Rectangular Sight Glass
With welding ends
Operating pressure: Up to 35 bar
For Liquid Level display, visual checkup and observation on vessels, boilers and silos at pressures up to 35 bar and high temperatures.
The connections sockets with ?20 mm are mounted to the body ends. Other diameters available on request.
Flange: 1.4571, S235GH
Glass: Borosilicate glass DIN 7081, (Reflex or Transparent)
Seal: C4400, Graphite, PTFE, NBR, Viton
Other materials on request
After welding of the base flange, the sealing surface must be checked for deformations! Reworking may be required!
ACI Type 331
Borosilicate glass transparent 11-331-16-220-2-1-1-000
For aggressive media or steam we recommend adding a mica disk to protect the glass.