mm |
||||||||||
公称尺寸 |
阀杆最小直径 |
|||||||||
DN |
PN16 |
PN25 |
PN40 |
PN63 |
PN100 |
PN160 |
PN20 |
PN50 |
PN110 |
PN150 |
50 |
20 |
20 |
20 |
22 |
22 |
26 |
20 |
22 |
22 |
26 |
65 |
22 |
22 |
22 |
24 |
24 |
28 |
22 |
22 |
24 |
28 |
80 |
24 |
24 |
24 |
26 |
26 |
30 |
24 |
24 |
26 |
30 |
100 |
26 |
26 |
26 |
28 |
30 |
34 |
26 |
26 |
30 |
34 |
125 |
28 |
28 |
28 |
30 |
34 |
38 |
28 |
28 |
34 |
38 |
150 |
30 |
30 |
30 |
34 |
38 |
42 |
30 |
32 |
38 |
42 |
200 |
34 |
34 |
36 |
40 |
44 |
50 |
34 |
36 |
44 |
50 |
250 |
38 |
38 |
40 |
44 |
50 |
56 |
38 |
40 |
50 |
56 |
300 |
42 |
42 |
44 |
48 |
55 |
65 |
42 |
44 |
55 |
65 |
350 |
46 |
46 |
48 |
52 |
62 |
— |
46 |
48 |
62 |
— |
400 |
50 |
50 |
52 |
56 |
70 |
— |
50 |
54 |
70 |
— |
450 |
54 |
54 |
56 |
60 |
78 |
— |
52 |
58 |
78 |
— |
500 |
58 |
58 |
62 |
68 |
88 |
— |
58 |
65 |
88 |
— |
600 |
65 |
65 |
70 |
— |
— |
— |
65 |
75 |
— |
— |
700 |
75 |
75 |
80 |
— |
— |
— |
75 |
85 |
— |
— |
800 |
85 |
85 |
90 |
— |
— |
— |
85 |
95 |
— |
— |
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