DP
27-GVPR01 Pilot Operated Strain Minimizing Valve
Transient Introduction.
DP27 Pilot Operated Force Decreasing Valve is the new type pilot additional-large membrane pressure reducing valve produced by our business,comparable to Spirax Sarco Design. It is tremendously improved on foundation of typical pressure lowering valve. The membrane use new content, enlarging the functioning spot, so the slight adjust of upper force or reduced pressure can be fed back to membrane of major valve, and change the opening of principal valve to guarantee the constant stress of reduce stream pressure.
Observe:
A variable price conical pressure adjustment spring is fitted delivering a down stream strain range of .two-17bar g.
Area of Application.
Solution Name: DP27-GVPR01 Pilot Operated Strain Decreasing Valve.
Force Ranking: 1.six- two.5 Mpa.
Nominal Diameter: DN15-50 mm.
Physique Content: Steel WCB.
Normal Flanges: DIN,ANSI,JIS.
Main Technical Parameters and Indexes of Performance.
| Nominal stress | PN25 |
| Maximum design pressure(PMA) | 25bar g @ a hundred and twenty |
| Maximum design temperature(TMA) | 232 @ 21bar g |
| Minimum design temperature(TMI) | -ten |
| Maximum upstream strain for saturated steam service(PMO) | 17barg |
| Maximum operating temperature(TMO) | 232 @ 21bar g |
| Minimum operating temperature(TMIO) | |
| Maximum differential force( PMX ) | 17bar |
| Down stream strain range | .2-1.7bar g |
| Maximum cold hydraulic examination pressure | 38bar g |
Material of Main Component.
| Name of part | Material of element |
| Valve human body, valve cover | WCB |
| Valve seat | 2Cr13 |
| valve flap | 2Cr13 |
| Valve rod | 2Cr13 |
| Membrane | Brass |
| Modifying spring | 60Si2Mn |
Major External Dimensions.
| DN(mm) | L(mm) | H1(mm) | H(mm) | D(mm) |
| 15 | 147 | 221 | 133 | 185 |
| twenty | 154 | 224 | 136 | 185 |
| 25 | a hundred and sixty | 235 | one hundred forty five | 207 |
| 32 | a hundred and eighty | 236 | 156 | 207 |
| forty | 200 | 238 | 176 | 255 |
| fifty | 230 | 246 | 183 | 255 |
| sixty five | 250 | 295 | two hundred | 320 |
| 80 | 310 | 323 | 230 | 350 |
| one hundred | 350 | 340 | 263 | 380 |
| 125 | four hundred | 359 | 306 | 455 |
| a hundred and fifty | 450 | 375 | 330 | five hundred |