低温焊接止回阀主要性能规范:
|
型号 |
公称压力 |
常温试验压力(MPa) |
低温试验压力(MPa) |
工作温度及适用介质 |
||||
|
壳体 |
密封(气) |
上密封 |
||||||
|
DH44Y-150Lb |
150 |
3.0 |
0.6 |
2.2 |
0.6 |
-46℃氨液、氨、丙烷 |
-101℃乙烯、二氧化碳 |
-196℃甲烷、氮气、液化天然气 |
|
DH44Y-300Lb |
300 |
7.5 |
0.6 |
5.5 |
0.6 |
|||
|
DH44Y-600Lb |
600 |
15.0 |
0.6 |
11.0 |
0.6 |
|||
低温焊接止回阀主要外形尺寸和连接尺寸:
|
公称通径 |
尺寸 |
||||||||
|
mm |
in |
L |
D |
D1 |
D2 |
b |
f |
n-Φd |
H |
|
DH44Y-150Lb |
|||||||||
|
50 |
2 |
203 |
152 |
120.5 |
92 |
16 |
1.6 |
4-19 |
180 |
|
80 |
3 |
241 |
192 |
152.5 |
127 |
19 |
1.6 |
4-19 |
190 |
|
100 |
4 |
297 |
229 |
190.5 |
157 |
24 |
1.6 |
8-19 |
203 |
|
125 |
5 |
330 |
254 |
216 |
186 |
24 |
1.6 |
8-22 |
229 |
|
150 |
6 |
356 |
279 |
241.5 |
216 |
26 |
1.6 |
8-22 |
257 |
|
200 |
8 |
495 |
342 |
298.5 |
270 |
29 |
1.6 |
8-22 |
292 |
|
250 |
10 |
622 |
406 |
362 |
324 |
31 |
1.6 |
12-25 |
355 |
|
300 |
12 |
698 |
483 |
432 |
381 |
32 |
1.6 |
12-25 |
396 |
|
DH44Y-300Lb |
|||||||||
|
50 |
2 |
267 |
165 |
127 |
92 |
23 |
1.6 |
8-19 |
178 |
|
80 |
3 |
318 |
210 |
168.5 |
127 |
29 |
1.6 |
8-22 |
216 |
|
100 |
4 |
356 |
254 |
200 |
157 |
32 |
1.6 |
8-22 |
241 |
|
125 |
5 |
400 |
279 |
235 |
186 |
35 |
1.6 |
8-22 |
267 |
|
150 |
6 |
444 |
318 |
270 |
216 |
37 |
1.6 |
12-22 |
305 |
|
200 |
8 |
533 |
381 |
330 |
270 |
42 |
1.6 |
12-25 |
368 |
|
250 |
10 |
622 |
445 |
387 |
324 |
48 |
1.6 |
16-29 |
394 |
|
300 |
12 |
711 |
521 |
451 |
381 |
51 |
1.6 |
16-32 |
445 |
|
DH44Y-600Lb |
|||||||||
|
50 |
2 |
295 |
165 |
127 |
92 |
33 |
6.4 |
8-19 |
203 |
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