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| PRODUCT NAME: pilot operated pressure reducing valve |
| PRODUCT MODEL:DPP17E |
DPP17E pilot operated pressure reducing valve
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Structural characteristic and purpose
This reducing valve the new type pilot extra-huge membrane pressure reducing valve developed by our company. It is greatly improved on basis of normal pressure reducing valve. The membrane use new material, enlarging the working area, so the slight change of upper pressure or lower pressure can be fed back to membrane of main valve, and adjust the opening of main valve to ensure the constant pressure of lower stream pressure.
Another outstanding advantage of the valve is: a valve body can be installed with many pilot valves, to realize the temperature control, upper stream pressure control and long-distance switch control as well as pressure regulating. |
main technical parameters and indexes of performance
Nominal pressure |
PN25 |
Maximun design pressure(PMA) |
25bar g @ 120 |
Maximun design temperature(TMA) |
232 @ 21bar g |
Minimun design temperature(TMI) |
-10 |
Maximun upstream pressure for saturated steam service(PMO) |
10barg |
Maximun operating temperature(TMO) |
190 @ 21bar g |
Minimun operating temperature(TMIO) |
0 |
Maximun differential pressure(
PMX
) |
10bar |
Maximum cold hydraulic test pressure |
38bar g |
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material of main component
Name of component |
Material of component |
Valve body, valve cover |
WCB |
Valve seat |
2Cr13 |
valve flap |
2Cr13 |
Valve rod |
2Cr13 |
Membrane |
Brass |
Adjusting spring |
60Si2Mn |
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connecting dimension
DN |
L |
H1 |
H |
D |
15 |
147 |
221 |
133 |
185 |
20 |
154 |
224 |
136 |
185 |
25 |
160 |
235 |
145 |
207 |
32 |
180 |
236 |
156 |
207 |
40 |
200 |
238 |
176 |
255 |
50 |
230 |
246 |
183 |
255 |
65 |
250 |
295 |
200 |
320 |
80 |
310 |
323 |
230 |
350 |
100 |
350 |
340 |
263 |
380 |
125 |
400 |
359 |
306 |
455 |
150 |
450 |
375 |
330 |
500 |
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| Keywords: DPP17E pilot operated pressure reducing valve, pressure reducing valve, Steam pressure reducing valve |
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Pressure Reducing Valve
