Clamp Connection
DIN standard
specification dimension |
D1 |
D2 |
DN15 |
15 |
34 |
DN20 |
19 |
34 |
DN25 |
25 |
50.5 |
DN32 |
31 |
50.5 |
DN40 |
37 |
50.5 |
DN50 |
49 |
64 |
DN65 |
66 |
91 |
DN80 |
81 |
106 |
DN100 |
100 |
119 |
DN125 |
125 |
145 |
DN150 |
150 |
167 |
SMS standard
specification dimension |
D1 |
D2 |
¢25 |
22.6 |
50.5 |
¢32 |
31.3 |
50.5 |
¢38 |
35.6 |
50.5 |
¢51 |
48.6 |
64 |
¢63 |
60.3 |
77.5 |
¢76 |
72.9 |
91 |
¢89 |
84.9 |
106 |
¢102 |
97.6 |
119 |
ISO/IDF standard
specification dimension |
D1 |
D2 |
1 ” |
23 |
50.5 |
1 1/2 ” |
35.7 |
50.5 |
2 ” |
48.4 |
64 |
2 1/2 ” |
60.2 |
77.5 |
3 ” |
72.9 |
91 |
3 1/2 ” |
85 |
106 |
4 ” |
97.6 |
119 |
If system pipe is bigger than pump standard caliber, customer need to tell us while selecting pump model.