DIN 28121 Circular Sight Glass Fittings
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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

Operating Pressure up to 25 bar

Materials: stainless, carbon steels and specials such as Hastelloy

Custom built versions