Standard Sight Glass Series
This series covers a wide range of standard stainless steel sight glasses for tanks, pipelines, and vessels.Including union, flanged, pipe, tubular, and strip sight glass designs.Reliable performance, flexible configurations, and support for custom sizes upon request.
PN3 Socket Head Bolt Flange Sight Glass
The Borlan Fluid PN3 socket head bolt flange sight glass provides a compact observation window for tanks, vessels and process equipment. The 2025 catalog covers DN40-DN300 in 304 or 316L stainless steel. Final glass, gasket, pressure, temperature, material and installation requirements are confirmed for each project.
PN6 External Hex Bolt Flange Sight Glass
The Borlan Fluid PN6 external hex bolt flange sight glass provides an observation window for tanks, vessels and process equipment. The 2025 catalog covers DN50-DN150 in 304 or 316L stainless steel. The catalog image shows an optional anti-corrosion light; final glass, gasket, operating conditions and approved dimensions are confirmed for each project.
Stainless Steel Union Sight Glass | DIN and SMS
The Borlan Fluid stainless steel union sight glass provides a compact viewing point for tanks and process vessels. DIN sizes from DN25 to DN200 and SMS sizes from 1 inch to 6 inches are available, with SS304 or SS316L material options and an optional manual wiper. Final glass, seal, pressure, temperature, surface finish and connection details are confirmed for each project.
