Japan, Yoshitake
YOSHITAKE GDK-2000 Pressure Reducing Valve – Steam
Made in Japan
Manufacturer: Yoshitake
Model: GDK-2000
- Remote air-loaded control
- Stable operation against inlet pressure fluctuation
Specifications
| Features | For steam, remote control, direct acting | |
|---|---|---|
| Type | Remote Air-loaded, direct acting type | |
| Specifications | Product type | Pilot-operated type |
| Nominal size | 15A (1/2″) – 100A (4″) | |
| Application | Steam | |
| End connection | JIS Rc or NPT screwed,JIS 20K RF flanged,JIS 10K FF flanged, ASME Class 150 or 300 flanged, EN PN25 flanged | |
| Inlet pressure | 0.1 – 2 MPa (0.1-1.0MPa for JIS 10K) | |
| Reduced pressure | 0.05 – 1.4 MPa (0.05-0.9MPa for JIS 10K and ASME 150) | |
| Reduced pressure | 90% or less of the inlet pressure(gauge pressure) | |
| Min. differential pressure | 0.05 MPa | |
| Max. pressure reduction ratio | 10 : 1 | |
| Working temperature | Max. 220 degree(C) | |
| Valve seat leakage | 0.01% or less of rated flow | |
| Material | Body | Ductile cast iron |
| Main Valve | Stainless steel | |
| Valve seat | Stainless steel | |
| Diaphragm | Stainless steel | |
JIS Rc screwed
| Size | L (mm) | H (mm) | Weight (kg) | Cv value |
|---|---|---|---|---|
| 15A(1/2) | 150 | 244 | 12.4 | 5 |
| 20A(3/4) | 150 | 244 | 12.4 | 7.2 |
| 25A(1) | 160 | 251 | 16.4 | 10.9 |
| 32A(1-1/4) | 180 | 282 | 19.9 | 14.3 |
| 40A(1-1/2) | 180 | 282 | 19.9 | 18.8 |
| 50A(2) | 230 | 319 | 30.5 | 32 |
JIS 20KRF flanged
| Size | L (mm) | H (mm) | Weight (kg) | Cv value |
|---|---|---|---|---|
| 15A(1/2) | 146 | 244 | 13.9 | 5 |
| 20A(3/4) | 146 | 244 | 14.4 | 7.2 |
| 25A(1) | 156 | 251 | 19.2 | 10.9 |
| 32A(1 1/4) | 176 | 282 | 22.4 | 14.3 |
| 40A(1 1/2) | 196 | 282 | 22.9 | 18.8 |
| 50A(2) | 222 | 319 | 33.5 | 32 |
| 65A(2 1/2) | 282 | 373 | 61.8 | 54 |
| 80A(3) | 302 | 399 | 69.1 | 70 |
| 100A(4) | 342 | 488 | 108.6 | 108 |
About flow rate
Selection data：
Dimensional drawing
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