Primary Pressure Regulating Valve
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GD-21
* Most suitable for relief valve of a pump in closed circuit * No leakage when closed due to single seat valve and valve disc |
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| Feature | Directacting type / Differential pressure regulating valve | |
| Category | Differential pressure regulating valve | |
| Specifications | Application | Cold and hot water |
| Regulating differential pressure | 0.05 - 0.7MPa(*) | |
| Connection | JIS 10K FF flanged | |
| Material | Body | Ductile cast iron |
| Valve seat | Bronze | |
| Valve disc | NBR | |
| Diaphragm | NBR | |
| * 15A-80A A: 0.05-0.25 MPa B: 0.26-0.7 MPa 100A-150A A: 0.05-0.25 MPa B: 0.26-0.5 MPa |
| Size | L (mm) | H (mm) | Weight (kg) | Cv value |
| 15A(1/2) | 145 | 298 | 8.3 | 1.5 |
| 20A(3/4) | 150 | 298 | 8.3 | 2.7 |
| 25A(1) | 150 | 320 | 10.1 | 4 |
| 32A(1-1/4) | 195 | 400 | 17.4 | 8.5 |
| 40A(1-1/2) | 195 | 400 | 17.4 | 11 |
| 50A(2) | 195 | 414 | 19.3 | 14 |
| 65A(2-1/2) | 270 | 572 | 40 | 23 |
| 80A(3) | 270 | 597 | 43.7 | 32.5 |
| 100A(4) | 308 | 665 | 70 | 48 |
| 125A(5) | 380 | 874 | 144 | 75 |
| 150A(6) | 400 | 929 | 173 | 108 |
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| CAD external view (205 KB) |
| Drawing (806 KB) |
