![](http://img1.clsj.cn/201806/07/10/10-16-10-85-1012621.jpg)
mso-hansi-font-family:"Times New Roman"">螺纹比例式减压阀外形尺寸:
mso-hansi-font-family:"Times New Roman"">公称通径DN "Times New Roman"">(mm) |
mso-hansi-font-family:"Times New Roman"">尺 寸(mm) |
|
L |
D |
|
15 |
80 |
50 |
20 |
80 |
50 |
25 |
90 |
54 |
32 |
100 |
60 |
40 |
110 |
68 |
50 |
120 |
80 |
mso-hansi-font-family:"Times New Roman"">比例式减压阀外形尺寸:
mso-hansi-font-family:"Times New Roman"">公称通径 |
A |
D3 |
L
|
25 |
232 |
115/125 |
|
32 |
246 |
140/150 |
|
40 |
256 |
150/155 |
|
50 |
270 |
165/175 |
85 |
65 |
306 |
185/200 |
102 |
80 |
320 |
210/230 |
122 |
100 |
340 |
240/265 |
140 |
125 |
400 |
275/300 |
160 |
150 |
429 |
310/350 |
178 |
200 |
358 |
355/400 |
230 |
4 "Times New Roman"">比例式减压阀概述:
mso-hansi-font-family:"Times New Roman"">比例式减压阀工作平稳, "Times New Roman"">比例准确,既减动压也减静压。该阀利用阀体内部活塞两端不同载面积产生的压力差, mso-hansi-font-family:"Times New Roman"">改变阀后的压力, "Times New Roman"">达到减压目的。比例式减压阀的减压比例是:2∶1 "Times New Roman"">,3∶1,
∶1,3∶2 mso-hansi-font-family:"Times New Roman"">,5∶2 "Times New Roman"">等,亦可根据要求设计特殊比例的减压阀。
mso-hansi-font-family:"Times New Roman"">该阀门利用阀体内部活塞两端截面积不同产生的压力差,改变阀后的压力达到减压的目的,比例准确,工作平稳,寿命长,适用温度高,即可减动压,又可减静压,水平、垂直安装均可。