Pressure classes

The "Pump Guide" specifies the connection dimension (DN) of the flanged pump on the suction and pressure side and the flange pressure class.
Many of the circulation pumps are double drilled according to PN6 / 10, which is shown in the field "Pump housing thread / flange:".
Pressure Ratings PN6
DN Dt ØDh ØD F T ds
32 70 90 120 14 12 4 x Ø14
40 80 100 130 14 11 4 x Ø14
50 90 110 140 14 11 4 x Ø14
65 110 130 160 14 11 4 x Ø14
80 128 150 190 16 13 4 x Ø18
100 148 170 210 16 13 4 x Ø18
125 178 200 240 18 15 8 x Ø18
150 202 225 265 18 15 8 x Ø18
200 258 280 320 20 17 8 x Ø18
Pressure Ratings PN10(16)
DN ØDt ØDh ØD F T ds PN 10 ds PN 16
32 78 100 140 18 16 4 x Ø18 4 x Ø18
40 88 110 150 18 15 4 x Ø18 4 x Ø18
50 102 125 165 18 15 4 x Ø18 4 x Ø18
65 122 145 185 18 15 4 x Ø18 4 x Ø18
80 138 160 200 20 17 8 x Ø18 8 x Ø18
100 158 180 220 20 17 8 x Ø18 8 x Ø18
125 188 210 250 22 19 8 x Ø18 8 x Ø18
150 212 240 285 22 19 8 x Ø22 8 x Ø22
200 268 295 340 24 21 8 x Ø22 12 x Ø22