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减压阀系列技术参数
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减压阀标准与规格:
| 设计标准 |
GB12235-89 |
| 结构长度 |
GB12221-89 |
| 法兰标准 |
JB79,JB78 |
| 检验与试验 |
GB12244,45,46-89 |
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减压阀特点与用途:
| 公称压力 |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
16.0 |
Mpa |
| 壳体试验 |
2.4 |
3.75 |
6.0 |
9.6 |
15.0 |
24.0 |
| 进口压力 |
≤1.6 |
≤2.5 |
≤4 |
≤6.4 |
≤10 |
≤16 |
| 出口压力 |
0.05-1.1 |
0.1-1.6 |
0.1-2.5 |
0.5-3.5 |
0.5-3.5 |
0.5-4.5 |
| 工作温度 |
≤300 |
≤350 |
≤400 |
≤450 |
≤450 |
≤450 |
℃ |
| 适用介质 |
蒸汽 |
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减压阀主要外形及连接尺寸:
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公称通径
DN |
外形尺寸 |
连接尺寸 |
| 1.6Mpa |
2.5Mpa |
4.0Mpa |
6.4Mpa |
| L |
H |
H1 |
D |
D1 |
Z-φd |
D |
D1 |
Z-φd |
D |
D1 |
Z-φd |
D |
D1 |
Z-φd |
| 15 |
160/160 |
280 |
85 |
95 |
65 |
4-14 |
95 |
65 |
4-14 |
95 |
65 |
4--14 |
105 |
75 |
4-14 |
| 20 |
160/180 |
295 |
85 |
105 |
75 |
4-14 |
105 |
75 |
4-14 |
105 |
75 |
4-14 |
125 |
90 |
4-8 |
| 25 |
180/200 |
295 |
100 |
115 |
85 |
4-14 |
115 |
85 |
4-14 |
115 |
85 |
4-14 |
135 |
100 |
4-18 |
| 32 |
200/220 |
295 |
100 |
135 |
100 |
4-18 |
135 |
100 |
4-18 |
135 |
100 |
4-18 |
150 |
110 |
4-23 |
| 40 |
220/240 |
310 |
105 |
145 |
110 |
4-18 |
145 |
110 |
4-18 |
145 |
110 |
4-18 |
165 |
125 |
4-23 |
| 50 |
250/270 |
310 |
105 |
160 |
125 |
4-18 |
160 |
125 |
4-18 |
160 |
125 |
4-18 |
175 |
135 |
4-23 |
| 65 |
280/300 |
310 |
105 |
180 |
145 |
8-18 |
180 |
145 |
8-18 |
180 |
145 |
8-18 |
200 |
160 |
8-23 |
| 80 |
310/330 |
355 |
160 |
195 |
160 |
8-18 |
195 |
160 |
8-18 |
195 |
160 |
8-18 |
210 |
170 |
8-23 |
| 100 |
350/380 |
355 |
160 |
215 |
180 |
8-18 |
230 |
190 |
8-23 |
230 |
190 |
8-23 |
250 |
200 |
8-25 |
| 125 |
400/450 |
390 |
200 |
245 |
210 |
8-18 |
270 |
220 |
8-25 |
270 |
220 |
8-25 |
295 |
240 |
8-30 |
| 150 |
450/550 |
390 |
200 |
280 |
240 |
8-23 |
300 |
250 |
8-25 |
300 |
250 |
8-25 |
340 |
280 |
8-34 |
| 200 |
500/550 |
440 |
260 |
335 |
295 |
12-23 |
360 |
310 |
12-25 |
375 |
320 |
12-30 |
405 |
345 |
12-34 |
| 250 |
650 |
490 |
280 |
405 |
355 |
12-25 |
425 |
370 |
12-30 |
445 |
385 |
12-34 |
470 |
400 |
12-41 |
| 300 |
800 |
545 |
320 |
460 |
410 |
12-25 |
485 |
430 |
16-30 |
510 |
450 |
36-34 |
530 |
460 |
16-41 |
| 350 |
900 |
590 |
355 |
520 |
470 |
16-25 |
550 |
490 |
16-34 |
570 |
510 |
16-34 |
590 |
525 |
16-34 |
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