Sight glass is also known as sight window, view port and flow indicator in sometimes, which is an observation window that allows operator to observe fluid stored under high temperatures, extreme pressures, and other extreme environmental conditions. Sight glasses are critical instruments used in the process industries to determine the condition and level of fluids and media in both tanks and pipelines. Sight glass is typically made of high temperature resistance robust toughened glass substrates, which are connected with pipes or vessels through the metal flange.
Sight glasses are divided into round, square, rectangular sight glasses by their shape and according to different structures, sight glasses are divided lined/non lined sight glass , sight glass with neck, sight glass with hood, double window/single window, insulated sight glass, sight glass with scrapers, sight glass with flushing device and suitable for sight glasses for powdered materials. Sight glass connection can be flanged, thread and welding.
There are two rectangular glass installed on flanged double rectangular windows sight glass,which make operator easily see through the sight glass, and easily observe in both side. Thanks to the rectangular glass observation window, the sight glass can observe longer scale medium than the round or square sight glass. Flange connection is easy maintenance.
Verify the production stages of a process visually.
Inspect media or fluids for changes in color or consistency.
Observe the liquid levels in a tank.
Analyze conditions in industrial equipment, chemical reactor.
DN15 ~ DN500
Integral Casting/ Welding
Carbon steel, Stainless steel, Carbon steel lined with fluorine, Ti