Galvanized flange with PN 16 thread

ocynk-kolnierz-z-gwintem-pn16
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