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Vessel sight glass DIN 28121
stainless steelcarbon steelflange

vessel sight glass
vessel sight glass
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for vessels, stainless steel, carbon steel, flange

Max.: 200 mm
(7.9 in)

Min.: 40 mm
(1.6 in)

Operating temperature

Max.: 200 °C
(392 °F)

Min.: 0 °C
(32 °F)

Operating pressure

Max.: 25 bar
(363 psi)

Min.: 0 bar
(0 psi)


Observation and illumination of the interior of enclosed vessels (cauldrons, tanks, silos etc.). Sight glasses consist of round flange mountings to be welded into or onto a vessel, completed by a sight glass plate with appropriate seals. Description Circular flange assembly for bolting straight onto existing flange Complete with fully gasketed glass disc Nominal sizes: DN40 to DN200 Viewing Diameter: 48 to 150mm Operating Temperature up to 200°C, higher available on request Operating Pressure up to 25 bar Materials: stainless, carbon steels and specials such as Hastelloy Custom built versions
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.