Hydraulic Stack Valve
The hydraulic stack valve utilizes a modular design to integrate multiple functions such as directional control, pressure control, and flow control. This reduces piping connections and simplifies system design.
- High compatibility: Adapts to ISO 4401 standard mounting surfaces, interchangeable with mainstream brand valve groups.
- Reliable & durable: Valve spools undergo hardening treatment, ensuring a lifespan of over a million cycles.
- Modular structure: Employs standardized interfaces, supporting multi-unit combinations for flexible adaptation to complex systems.
- Material & craftsmanship: Valve body and spool are made from high-strength alloy steel, undergoing precision grinding and surface treatment for wear and corrosion resistance.
- Industrial automation: Widely applied in equipment such as injection molding machines, die-casting machines, and CNC machine tools.
- Construction machinery: Used in hydraulic systems for excavators, loaders, and cranes.
- Metallurgical equipment: Suitable for high-temperature, high-pressure environments like rolling mills and continuous casting machines.
- New energy equipment: Supports hydraulic control systems for wind power and photovoltaic equipment.
| Model | Max. operating pressure (MPa) | Max. flow (L/min) |
| | 21 | 35 |
| | 31.5 | 70 |
| Model | Max. operating pressure (MPa) | Max. flow (L/min) |
| | 31.5 | 35* |
| | 25 | 70* |
| Model | Max. operating pressure (MPa) | Max. flow (L/min) |
| | 14.0 | 20* |
| | 14.0 | 40* |
| Model | Max. operating pressure (MPa) | Max. flow (L/min) | Free flow |
| | 25.0 | 35 | — |
| | 25.0 | 35 | 35 |
| Model | Max. operating pressure (MPa) | Max. flow (L/min) |
| | 31.5 | 35* |
| | 25 | 70* |
| Model | Max. operating pressure (MPa) | Max. flow (L/min) |
| | 31.5 | 60 |
| | 25 | 120 |
| Model | Max. operating pressure (MPa) | Max. flow (L/min) |
| | 25 | 70 |
| | 25 | 70 |
| | 25 | 70 |
| | 25 | 70 |
| | 25 | 70 |
- Minimizes installation space.
- Assembly requires no special skills; any additions or changes to hydraulic circuits can be done quickly and easily.
- Minimizes problems such as oil leakage, vibration, and noise caused by piping, thereby enhancing the reliability of the hydraulic system.
- Maintenance and system inspection are more convenient due to typical stackable installation.
External piping between components, such as hoses, tubes, and fittings, is unnecessary. This avoids potential leaks that can occur with external piping.
Under clean conditions, fully screw four double-ended studs into the threaded holes on the designated base plate, subplate, or integrated block mounting surface. Stack the stacking valves and solenoid directional valves according to the hydraulic circuit, placing the side with the O-ring on the base plate. Ensure correct positioning before stacking valves using the double-ended studs. Align the ends of the stacked valves. Screw the four nuts onto the double-ended studs and tighten them to the specified torque. After trial operation, be sure to re-tighten the nuts securely within the specified torque range.
To adjust the pressure, loosen the lock nut, then rotate the pressure adjustment screw clockwise or counter-clockwise. To increase the pressure, rotate the screw clockwise. After adjusting the pressure, always remember to re-tighten the lock nut.
