- Simple in structure, less prone to fail and easy to maintain
- Superior performance especially as relief unit for lubricating oil and heavy oil
Japan, Yoshitake
YOSHITAKE GD-7R Primary Pressure Regulating Valve
Made in Japan
Manufacturer: Yoshitake
Model: GD-7R
Specifications
| Features | For liquid, piston type | |
|---|---|---|
| Type | Primary pressure regulating valve | |
| Specifications | Product type | Primary pressure regulating valve/ Pressure sustaining valve |
| Nominal size | 20A (3/4″) – 150A (6″) | |
| Application | Water, oil and other non-dangerous fluids | |
| End connection | JIS 10K FF flanged | |
| Max. pressure | 0.7 MPa | |
| Working pressure | 0.05 – 0.7 MPa (*) | |
| Working temperature | 5 – 80 degree(C) | |
| Material | Body | Cast iron |
| Valve and valve | Bronze | |
| Piston | Bronze | |
| Spindle | Stainless steel | |
Remarks
*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.
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 | 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 |
Dimensional drawing
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