Sight glass/ View glass

Sight glass/ View glass About

Material Selection BodyFlanges Typically ASTM A182 F316316L or F304 SS316L is preferred for its superior resistance to pitting and intergranular corrosion Lining PTFE Teflon or PFA Note PFA is often preferred for molded linings because it has better meltprocessability and lower permeability than standard PTFE Lining Thickness Usually ranges from 3mm to 5mm depending on the pipe size Glass Disk Borosilicate glass for thermal shock resistance or Quartz for hightemperature applications CushionsGaskets Usually PTFE or Graphite to protect the glass from the metal cover 2 Design Standards Pressure Flange Rating Commonly ANSIASME B165 Class 150 or Class 300 FacetoFace Often follows manufacturer standards or DINANSI piping dimensions Pressure Rating Typically limited by the glass thickness and the linings integrity at temperature Standard units often handle up to 1016 bar but this drops as temperature increases

Reliable Process Visibility

Sight glass assemblies enable real-time inspection of process fluids in pipelines and vessels. With various view types such as full view and window styles, operators can ensure process integrity, detect flow, and monitor clarity without interrupting operations. These sight glasses are ideal for visually inspecting media under high-pressure or corrosive conditions, supporting preventive maintenance and quality control.


Durable Construction & Customization

Constructed from premium stainless steel (SS304/316), carbon steel, or brass, our sight glasses withstand demanding industrial environments. High-quality borosilicate or toughened glass is used for optimal temperature and pressure compatibility. Custom sizing and multiple end connection options-including flanged, threaded, and socket weld-ensure seamless integration into various piping systems. Finishes like mirror, matt, or powder-coated enhance resistance.