Spirax Sarco Dp17/Dp27/Dp143 Pilot Diaphragm Type Water/ Oil / Steam Pressure Reducing Valve/ Pressure Regulating Valve / Control Valve
Product Description
Brief Introduction.
DP 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.
Application
1. DP27 Pilot Operated Pressure Reducing Valve
Pressure Rating: 1.6- 2.5Mpa.
Specification: DN15-50.
Material: Steel WCB.
Standard flanges: DIN, ANSI, JIS.
2. DPP17E Pilot Operated Pressure Reducing Valve:
Pressure Rating: 1.6- 2.5Mpa.
Specification: DN15-50.
Material: Steel WCB.
Standard flanges: DIN, ANSI, JIS.
3.DP17 Pilot Operated Pressure Reducing Valve:
Pressure Rating: 1.6- 2.5Mpa.
Specification: DN15-50.
Material: Steel WCB.
Standard flanges: DIN, ANSI, JIS.
4. DP143 Pilot Operated Pressure Reducing Valve:
Pressure Rating: 1.6- 4.0Mpa.
Specification: DN15-200.
Material: Steel WCB.
Standard flanges: DIN, ANSI, JIS.
Working Principle
Product Details
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 |
500 |
Product Parameters
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 |
View of the factory
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