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性能规范：
| 设计规范 |
结构长度 |
连接法兰 |
实验与检验 |
产品标识 |
供货规范 |
| GB/T 12224 |
GB/T 12221 |
JB/T 78;JB/T 79 |
GB/T 13927 |
GB/T 12220 |
JB/T 7928 | 主要外形连接尺寸（mm)
| 公称通径 |
标 准 值 |
参 考 值 |
DN
(mm) |
NPS
(inch) |
L |
D |
D 1 |
D 2 |
f |
b |
Z- φ d |
B |
WT(Kg) |
| DN 0.6MPa |
| 25 |
1 |
152 |
100 |
75 |
60 |
2 |
14 |
4- φ 12 |
135 |
6 |
| 40 |
11/2 |
178 |
130 |
100 |
80 |
3 |
16 |
4- φ 14 |
170 |
10 |
| 50 |
2 |
178 |
140 |
110 |
90 |
3 |
16 |
4- φ 14 |
190 |
14 |
| 65 |
21/2 |
190 |
160 |
130 |
110 |
3 |
16 |
4- φ 14 |
210 |
18 |
| 80 |
3 |
203 |
185 |
150 |
125 |
3 |
18 |
4- φ 18 |
235 |
21 |
| 100 |
4 |
267 |
205 |
170 |
145 |
3 |
18 |
4- φ 18 |
300 |
40 |
| 150 |
6 |
394 |
260 |
225 |
200 |
3 |
20 |
8- φ 18 |
440 |
90 |
| DN 1.0MPa |
| 25 |
1 |
152 |
115 |
85 |
65 |
2 |
16 |
4- φ 14 |
135 |
6.8 |
| 40 |
11/2 |
178 |
145 |
110 |
85 |
3 |
18 |
4- φ 18 |
170 |
11.5 |
| 50 |
2 |
178 |
160 |
125 |
100 |
3 |
20 |
4- φ 18 |
190 |
15 |
| 65 |
21/2 |
190 |
180 |
145 |
120 |
3 |
20 |
4- φ 18 |
210 |
20 |
| 80 |
3 |
203 |
195 |
160 |
135 |
3 |
22 |
4- φ 18 |
235 |
23 |
| 100 |
4 |
267 |
215 |
180 |
155 |
3 |
22 |
8- φ 18 |
300 |
44 |
| 150 |
6 |
394 |
280 |
240 |
210 |
3 |
24 |
8- φ 23 |
440 |
95 | |
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