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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.




Galvanized flange with PN 16 thread
DN catalog no. female thread " Pitch diameter of holes number of holes Screw hole diameter
15 41191115 1/2" 65 4 14
20  41191120 3/4" 75 4 14
25  41191125 1" 85 4 14
32  41191132 1 1/4" 100 4 18
40  41191140 1 1/2" 110 4 18
50  41191150 2" 125 4 18
65  41191165 2 1/2" 145 8 18
80  41191186 3" 160 8 18
100  41191111 4" 180 8 18

 

Flange with PN 16 thread
DN order number female thread " Pitch diameter number of holes size number of holes Bolt hole diameter
15  41191015 1/2" 65 4 14
20  41191020 3/4" 75 4 14
25  41191025 1" 85 4 14
32  41191032 1 1/4" 100 4 18
40  41191040 1 1/2" 110 4 18
50  41191050 2" 125 4 18
65  41191065 2 1/2" 145 4 18
80  41191080 3" 160 8 18
100  41191100 4" 180 8 18

 

Flat flange PN 16
DN Order No. hole diameter mm hole pitch diameter number of holes hole diameter for screws
15 41151015 21,3 65 4 14
20 41151020 26,9 75 4 14
25 41151025 33,7 85 4 14
32 41151032 42,4 100 4 18
40 41151040 48,3 110 4 18
50 41151051 60,3 125 4 18
65 41151065 76,1 145 4 18
80 41151080 88,9 160 8 18
100 41151100 108,0 180,0 8 18
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