KROMBACH® Flow Through Sight Glasses

KROMBACH® Flow Through Sight Glasses for flow or fluid level control in tank or boiler applications. Available as straight through, angle type or 3-way type with flanged connection PN 10 up to PN 40, with pressed hard glass DIN 8902 or borosilicate glass, the sight glasses are suitable for industrial and chemical applications and for critical services also at high temperature applications.

Features And Benefits

  • Body with embedded entry nozzle
  • Both sides, sight glasses out of pressed hard glass acc. to DIN 8902 for temperature up to 150°C
  • or borosilicate glass acc. to DIN 7080 for temperature up to 280°C
  • Asbestos-free sealings
  • Optional with indicator flaps
  • Face-to-face dim. acc. to DlN EN 558/1 GR 1
  • Flange dimensions and drillings acc. to DIN 2501
  • Sealing surface acc. to DIN 2526 form C others on request

Technical Details


  • DN 15 to DN 250


  • -10°C to 280°C


  • PN 10/16 to PN 25/40 and PN


Applicable in industrial and chemical steam processes or piping systems, where visual fluid control is required.


  • DIN 2501
  • DIN EN 558-1
  • Atex 94/4/EG, DIN EN13463-1, EN 1127-1