NACHI-FUJIKOSHI CORP.
Hydraulic Equipment
Main text
Load Sensing Valve
| Valve size | T04 (A/B port) | |
|---|---|---|
| Maximum working pressure (pump port) | 25MPa | |
| Maximum working pressure actuator port | 28MPa | |
| Maximum pump flow | 120 L/min | |
| Maximum control flow (1 function) | 90 L/min | |
| Tank port allowable back pressure | 0.3 MPa (1.5 MPa at peak) | |
| Internal leakage (A/B port) | 5cm2/min at 5MPa | |
| Internal leakage (boom lock valve) | 1cm2/min at 5MPa | |
| Operating method | * Hydraulic pilot | |
| * Manual | ||
| * Electromagnetic proportional valve | ||
| Structure of attached valves (Can be built-in) |
* Overload relief | |
| * Vacuum check valve | ||
| * Boom lock valve (anti-drift valve) | ||
| * Safety lock valve | ||
| * Very slow-speed mode | ||
| Applicable mini excavator (example) | 3 - 5-ton | |
| Operating conditions | Hydraulic oil | ISOVG 32 to 68 |
| Oil temperature (for common use) |
-20 to 100°C(5 to 80°C) | |
| Viscosity | 10 to 1000mm2/s | |
| Ambient temperature | -20 to 60°C | |