Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of z2s6 hydraulic pilot valve in China, also supports customized service. If you're going to wholesale high quality z2s6 hydraulic pilot valve made in China, welcome to get pricelist from our factory.
Products Description
The Z2S6 hydraulic pilot valve is a sandwich-style hydraulic one-way throttle valve designed primarily to control the movement speed of actuators within hydraulic systems. It enables free fluid flow in one direction while providing metered flow control in the opposite direction. Featuring a sandwich-plate design for direct mounting onto standard hydraulic control modules, the valve is characterized by its compact structure, stable adjustment, and reliable response, making it widely applicable in systems involving hydraulic cylinders, hydraulic motors, and general industrial hydraulics.By pairing a check valve with a throttle valve, the Z2S6 allows flow to move freely in one direction while applying controlled restriction in the other, which simplifies speed regulation and helps maintain steady cylinder movement under varying loads.
The Z2S6 hydraulic pilot valve is widely used in hydraulic equipment requiring precise speed control and stable operation, including:
Construction machinery: Controlling the operating speed of hydraulic cylinders and enhancing operational stability;
Industrial automation equipment: Regulating the operating speed of actuators to achieve precise motion control;
Hydraulic presses and pressure equipment: Controlling cylinder movement and reducing operational shock;
Injection molding machinery: Speed regulation and motion optimization within hydraulic circuits;
Hydraulic power units: Used in conjunction with directional control valves to achieve localized flow control.

Advantages
1. Precise Speed Control for Actuators
The Z2S6 regulates oil flow via an adjustable throttling mechanism, allowing actuator speeds to be tailored to specific operating conditions and ensuring smoother operation of hydraulic cylinders or motors.
2. Free Flow in One Direction with Low System Resistance
Featuring an internal check valve design, the unit allows free flow with minimal resistance in one direction while providing metered flow control in the other, thereby enhancing hydraulic system efficiency.
3. Compact Design and Easy Installation
Designed for NG6 stackable mounting, it integrates directly with other hydraulic valves to save space and simplify both system integration and maintenance.
4. Stable Operation
By controlling the return flow speed of actuators, it minimizes hydraulic shock and instability, resulting in smoother equipment operation.
5. Suitable for Diverse Hydraulic Applications
Its standardized design makes it compatible with a wide range of hydraulic circuits, making it ideal for various industrial machines and automated hydraulic systems.
6. Reliable Performance and Simple Maintenance
With a proven design and robust internal components, the unit is easy to inspect and service, making it well-suited for applications requiring long-term, continuous operation.

| Product parameters | ||
| Specification | Z2S6 | |
|
Max working pressure Mpa |
31.5 | |
| Max flow (L/min) | 60 | |
| Open pressure | 0.15/0.3/0.7 | |
| Design number | 10 | |
Structure
1. Valve Body Assembly
High-strength valve body with precision-machined internal passages. NG6 stackable-mounts directly onto directional valves or other hydraulic components. Easy assembly and expansion.
2. Check Valve Assembly
Comprising a valve spool, spring, and valve seat, this assembly controls unidirectional fluid flow. During forward flow, the check valve opens, allowing fluid to pass with low resistance; during reverse flow, the valve closes, forcing fluid through a throttling passage to achieve flow control.
3. Throttling Adjustment Assembly
This assembly regulates flow rate by adjusting the flow area through changes to the valve spool opening. Users can make adjustments based on the required operating speed of the equipment, ensuring smoother movement of the actuators.
4. Adjustment Screw Assembly
Used to vary the opening of the throttle port and regulate fluid flow. Rotating the adjustment mechanism allows for easy control of the operating speed of hydraulic cylinders or motors.
5. Sealing Assembly
Utilizes high-performance seals to ensure reliable sealing of internal flow passages, minimize leakage risk, and enhance operational stability under high-pressure conditions.

The Company
We are a manufacturing company focused on the R&D, production, and export of hydraulic control components. Our main products include multi-way valves, solenoid directional valves, pilot-operated directional valves, pressure valves, and flow control valves. We have complete production processes and quality inspection systems-covering precision machining, assembly, and performance testing. We offer both standard products and custom hydraulic solutions tailored to customer requirements. With consistent product quality and strong export service experience, our products are widely used in construction machinery, industrial equipment, and mining machinery-and we've built long-term partnerships with clients worldwide.

THE FAQ
Q: What causes the lack of noticeable speed change after adjusting the Z2S6?
A: In actual operation, poor speed adjustment could be due to excessive system flow, mismatched throttling range selection, load fluctuations, or internal contamination of the valve. It's recommended to re-check the adjustment range based on the equipment's actual flow rate and operating pressure.
Q: What issues are prone to occur with the Z2S6 during long-term use?
A: Common problems include sluggish throttle adjustment, abnormal check valve operation, and increased internal leakage. Based on maintenance experience, most of these issues are linked to fluid contamination, insufficient filtration precision, or prolonged high-load operation.
Q: How do you determine if the Z2S6 model is suitable for your current equipment?
A: When selecting the model, you need to verify the system pressure, flow rate, mounting method, controlled component, and actuator operation requirements. In actual projects, providing the equipment model, hydraulic schematic, or the original valve model helps quickly identify the right Z2S6 configuration.
Q: What are the consequences of incorrect flow direction adjustment for the Z2S6?
A: If the flow direction is installed incorrectly, the actuator speed may not be adjustable as intended, or abnormal operation may occur. During installation, verify the orientation based on the port markings on the valve body and the system's flow direction.
Q: Why is the Z2S6 commonly used in construction machinery and industrial equipment?
A: The Z2S6 features a compact design and flexible installation, combining unidirectional flow with flow-throttling capability-simplifying hydraulic circuit design. In practice, it helps improve actuator stability and reduces the complexity of system commissioning.
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