PN25
Yoshitake GD-7 is a pressure reducing valve featuring an adjustable spring and piston design. It is manufactured with JIS 10K FF flanged connections and is available in a range of sizes from 20A to 150A. The construction incorporates robust materials such as a cast iron spring chamber and cap, along with a stainless steel cylinder and bronze piston components for precision regulation.
Specifications
The following specification parameters are supported by the GD-7 design:
| Parameter | Unit |
|---|---|
| Fluid | - |
| Inlet Press. | MPa |
| Reduced Press. | MPa |
| Temp. | °C |
| Flow Rate | - |
Dimensions and Materials (20A to 50A)
| Size | L (mm) | H (mm) | H1 (mm) | d (mm) | Flange JIS 10K FF D | Flange C | Flange t | Flange n-h | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 20A | 170 | 535 | 95 | 20 | 100 | 75 | 18 | 4-15 | 20 |
| 25A | 170 | 535 | 95 | 25 | 125 | 90 | 18 | 4-19 | 22 |
| 32A | 180 | 545 | 100 | 32 | 135 | 100 | 20 | 4-19 | 23 |
| 40A | 180 | 545 | 100 | 40 | 140 | 105 | 20 | 4-19 | 23 |
| 50A | 180 | 565 | 110 | 50 | 155 | 120 | 20 | 4-19 | 26 |
| Part | Material | Material Code |
|---|---|---|
| Bolt | Steel | Steel |
| Name Plate | Stainless Steel | SUS304 |
| Plug | Malleable Cast Iron or Steel | FCMB or Steel |
| Pin | Stainless Steel | SUS |
| Gasket | Non-Asbestos | Non-Asbestos |
| Nut | Stainless Steel | SUS |
| O Ring | NBR | NBR |
| Washer | Stainless Steel | SUS |
| Cap | Cast Iron | FC200 |
| Lock Nuts | Steel | Steel |
| Adjusting Screw | Stainless Steel | SUS403 |
| Spring Plate | Cast Iron | FC200 |
| Spring | Alloy Steel or ITW or Spring Steel | SWOSM or SWI or SUP |
| Spring Chamber | Cast Iron | FC200 |
| Spring Washer | Carbon Steel | SWRH |
| Piston | Bronze | CAC406 |
| Cylinder | Stainless Steel | SUS304 |
Dimensions and Materials (65A to 150A)
| Size | L (mm) | H (mm) | H1 (mm) | d (mm) | Flange JIS 10K FF D | Flange C | Flange t | Flange n-h | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 65A | 215 | 680 | 125 | 65 | 175 | 140 | 22 | 4-19 | 41 |
| 80A | 260 | 700 | 135 | 80 | 185 | 150 | 22 | 8-19 | 51 |
| 100A | 300 | 750 | 160 | 100 | 210 | 175 | 24 | 8-19 | 66 |
| 125A | 360 | 810 | 190 | 125 | 250 | 210 | 24 | 8-23 | 90 |
| 150A | 382 | 875 | 220 | 150 | 280 | 240 | 26 | 8-23 | 129 |
| Part | Material | Material Code |
|---|---|---|
| Bolt | Steel | Steel |
| Name Plate | Stainless Steel | SUS304 |
| Nut | Steel | Steel |
| Spring | Stainless Steel | SUS304 |
| Plug | Malleable Cast Iron or Steel | FCMB or Steel |
| Pin | Stainless Steel | SUS |
| Gasket | Non-Asbestos | Non-Asbestos |
| Cylinder Cover | Cast Iron | FC200 |
| O Ring | NBR | NBR |
| Washer | Stainless Steel | SUS |
| Cap | Cast Iron | FC200 |
| Lock Nut | Steel | Steel |
| Adjusting Screw | Stainless Steel | SUS403 |
| Spring Plate | Cast Iron | FC200 |
| Spring Chamber | Cast Iron | FC200 |
| Spring Washer | Carbon Steel | SWRH |
Yoshitake Control Valves / Pressure Reducing Valves
GP, GD, and CP series for stable pressure reduction and control in steam, water, and air systems.
