Audited Supplier
GADP27
ISO
Ordinary Temperature
Flange
Single-Seat
Spring Diaphragm
C.S
1/2"-6"
Pressure Reducing Valve
Flange
Steam., etc
Below 285 Deg C
Pressure Reducing
Steam System, Air Compressor System., etc
GOOLE, OEM
Carton, Plywood Case
ISO 9001
China(Mainland)
8481804090
Product Description
DP27-GVPR01 Pilot Operated Pressure Reducing Valve
DP27 Pilot Operated Pressure Reducing Valve is the new type pilot extra-huge membrane pressure reducing valve developed by our company, similar to Spirax Sarco Design. 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.
Note:
A variable rate conical pressure adjustment spring is fitted providing a down stream pressure range of 0.2-17bar g.
Field of Application.
Product Name: DP27-GVPR01 Pilot Operated Pressure Reducing Valve.Pressure Rating: 1.6- 2.5 MPa.
Nominal Diameter: DN15-50 mm.
Body Material: Steel WCB.
Standard Flanges: DIN, ANSI, JIS.
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 |
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 |
| Down stream pressure range | 0.2-1.7bar g |
| Maximum cold hydraulic test pressure | 38bar g |
