Japan, Yoshitake
YOSHITAKE GD-7B Pressure Reducing Valve – Water · Oil
Made in Japan
Manufacturer: Yoshitake
Model: GD-7B
- Simple design mechanism
- A dual-valve format minimizes the effects of inlet pressure fluctuations.
- Suitable for lubricating oil, and heavy fuel oil.
Specifications
| Features | For liquid, double-seated, pressure balance structure | |
|---|---|---|
| Type | Direct-acting type | |
| Specifications | Product type | Direct-acting type |
| Nominal size | 20A (3/4″) – 150A (6″) | |
| Application | Water, oil, non-dangerous fluids | |
| End connection | JIS 10K FF flanged | |
| Inlet pressure | 0.1 – 1 MPa | |
| Reduced pressure | 0.05 – 0.7 MPa (*1) | |
| Reduced pressure | 85% or less of the inlet pressure(gauge pressure) | |
| Min. differential pressure | 0.05 MPa | |
| Working temperature | 5 – 80 degree(C) | |
| Material | Body | Cast iron |
| Valve | NBR | |
| Valve seat | Stainless steel | |
| Piston | Bronze | |
Remarks
*1 Reduced pressure
1) 20A-50A
(A): 0.05-0.25 MPa
(B): 0.25-0.45 MPa
(C): 0.45-0.7 MPa
2) 65A-150A
(A): 0.05-0.2 MPa
(B): 0.2-0.5 MPa
(C): 0.5-0.7 MPa
*2 Max. pressure reduction ratio
20-50A — 20:1
65-150A — 15:1
Dimensions and Weights
| 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 | 4 |
| 40A(1 1/2) | 180 | 545 | 23 | 5 |
| 50A(2) | 180 | 565 | 26 | 8 |
| 65A(2 1/2) | 215 | 680 | 41 | 12 |
| 80A(3) | 260 | 705 | 51 | 16 |
| 100A(4) | 300 | 755 | 66 | 20 |
| 125A(5) | 360 | 815 | 90 | 25 |
| 150A(6) | 382 | 885 | 129 | 30 |
About flow rate
Selection data：
Dimensional drawing
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