Product Description
PTFE sight glasses are devices that provide real-time observation of the flow of liquids or gases in pipelines, offering excellent corrosion resistance and sealing properties. The internal viewing window is made of highly transparent borosilicate glass and lined with PTFE (polytetrafluoroethylene), effectively protecting against corrosion from strong acids, alkalis, and other corrosive media. These sight glasses are widely used in the chemical, pharmaceutical, food, and environmental protection industries to monitor the flow, color, and clarity of liquids or gases.
Technical Parameters
- Temperature Range: -40°C (-40°F) to +200°C (+392°F), depending on the lining material.
- Pressure Range: FV to 16 bar (232 psi)
- Body Flange: 20/SS304 Stainless Steel (1.4301)/316L Stainless Steel (1.4404)
- Lining: PFA/PFA-AS/PTFE
FAQ
Q: Can PTFE sight glasses be customized?
A: Yes. We can customize PTFE sight glasses to suit your specific installation method, flange standard, dimensions, and operating conditions.
Q: How should PTFE sight glasses be maintained?
A: Regularly inspect the glass for cracks or contamination. If seals are found to be deteriorating or leaking, replace them promptly.

