Brief Introduction.
DP17 Pilot Operated Pressure Reducing Valve, similar to Spirax Sarco Design, mainly used for steam system to reduce pressure, which is superior to normal piston type steam pressure reducing valve.
This Pilot Operated Pressure Reducing Valve has another prominent features:
The same body can be installed and exchange the voltage valve in the more than at the same time, realize temperature control, upstream pressure control, remote switch control, etc.
Field of Application.
Pressure Rating: 1.6- 2.5 Mpa.
Nominal Diameter: DN15-50 mm.
Body Material: Steel WCB.
Standard flanges: DIN, ANSI, JIS.
Main Technical Parameters and Indexes of Performance.
| Nominal pressure | PN25 |
| Maximum design pressure(PMA) | 25bar g @ 120 |
| Maximum design temperature(TMA) | 232 @ 21bar g |
| Minimum design temperature(TMI) | -10 |
| Maximum upstream pressure for saturated steam service(PMO) | 17barg |
| Maximum operating temperature(TMO) | 232 @ 21bar g |
| Minimum operating temperature(TMIO) | 0 |
| Maximum differential pressure( PMX ) | 17bar |
| Maximum cold hydraulic test pressure | 38bar g |
DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 |
Cv | 2.8 | 5.5 | 8.1 | 12.0 | 17.0 | 28.0 | 45.5 | 60.1 | 93.3 | 146 | 186 |
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 |
Main External Dimensions.
DN(mm) | L(mm) | H1(mm) | H(mm) | D(mm) |
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 | 50 |
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