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Steel flanges

Threaded flanges, flat, necked, blind.

Steel flanges have been known in water installations for many years and are one of the most popular connection types. Their main purpose is to connect installations, liquid transfer devices, water in installations where very high pressures can occur and “high” tightness is needed. Steel flanges have a specific application and therefore their production is regulated by appropriate standards.




Flat flange with neck PN 16
DN Diameter mm Hole diameter mm Pitch diameter number of holes Size of hole for screws
15 41161015 21,3 65 4 14
20 41161020 26,9 75 4 14
25 41161025 33,7 85 4 14
32 41161032 42,4 100 4 18
40 41161040 48,3 110 4 18
50 41161051 60,3 125 4 18
65 41161065 76,1 145 4 18
80 41161080 88,9 160 8 18
100 41161100 108,0 180 8 18
Blanking flange PN 16
DN Diameter mm Hole diameter mm Pitch diameter number of holes Size of hole for screws
15 41181015 21,3 65 4 14
20 41181020 26,9 75 4 14
25 41181025 33,7 85 4 14
32 41181032 42,4 100 4 18
40 41181040 48,3 110 4 18
50 41181050 60,3 125 4 18
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