Primary Pressure Regulating Valve
GD-7R
* Simple in structure, less prone to fail and easy to maintain * Superior performance especially as relief unit for lubricating oil and heavy oil |
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Feature | Direct acting type / Piston type | |
Category | Primary pressure regulating valve | |
Specifications | Application | Cold and hpt water , Oil , Other non-dangerous fluids |
Pressure regulating range | 0.05 - 0.7MPa(*1) | |
Connection | JIS 10K FF flanged | |
Material | Body | Cast iron |
Valve disc | Phosphor bronze (*3) | |
Valve seat | Phosphor bronze | |
Piston | Bronze |

*1 20A-50A A: 0.05-0.25 MPa B: 0.25-0.45 MPa C: 0.45-0.7 MPa 65A-150A A: 0.05-0.2 MPa B: 0.2-0.5 MPa C: 0.5-0.7 MPa *2 Available with maximum temperature of 120 degree(C). *3 Available with stainless steel made valve disc and valve seat. |
Size | L (mm) | H (mm) | Weight (kg) | Cv value |
20A(3/4) | 170 | 535 | 20 | 2 |
25A(1) | 170 | 535 | 22 | 3 |
32A(1-1/4) | 180 | 545 | 23 | 6 |
40A(1-1/2) | 180 | 545 | 23 | 8 |
50A(2) | 180 | 565 | 26 | 15 |
65A(2-1/2) | 215 | 680 | 41 | 23 |
80A(3) | 260 | 700 | 51 | 30 |
100A(4) | 300 | 750 | 66 | 40 |
125A(5) | 360 | 810 | 90 | 50 |
150A(6) | 382 | 875 | 129 | 60 |

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CAD external view (334 KB) |
Drawing (298 KB) |