Sight glasses within a valve allow the plant operator to see if fluid is free-flowing in the pipe by including a clear glass section. Sights glasses are helpful to keep an eye on the operation of equipment, to make sure everything is running smoothly, which also allows you to isolate any issues, making for a quicker fix.
Borosilicate glass is used in sight glasses, and this material is resistant to most chemicals, however the housing which carries the glass must be protected.
For corrosive applications, the body of the sight glass can be lined with PTFE or PFA to ensure resistance to the process.
If you would like to learn more about the sight glass valves we supply, get in contact with us today!