HS8 Series Hydraulic Control Sectional Directional Controlunidirectional Flow Control Valve

HS8 Series Hydraulic Control Sectional Directional Controlunidirectional Flow Control Valve

In industrial hydraulic systems-such as those in injection molding machines, metal cutting equipment, and lifting machinery-stable control of unidirectional hydraulic flow is essential to ensure the safe and efficient operation of actuators. The HS8 Series Hydraulic Control Sectional Directional Control Unidirectional Flow Control Valve is designed to meet this demand, serving as a key component that regulates the flow rate of hydraulic oil in a single direction. As a reliable unidirectional flow control valve, it allows hydraulic oil to flow smoothly in the preset direction while preventing reverse flow, effectively protecting downstream components like pumps and motors from damage caused by oil backflow. The hs8 hydraulic valve is particularly suitable for scenarios requiring precise unidirectional speed control, such as the feeding mechanism of a CNC lathe, where stable flow directly affects machining accuracy.​

The hs8 hydraulic valve stands out in industrial applications with its ability to deliver precise unidirectional flow control while offering flexible installation options. Its flow control spool is machined with high precision, enabling stepless adjustment of flow rates within the range of 0-100 L/min, with a control accuracy of ±3%-critical for maintaining a stable feeding speed of the workpiece or a uniform lifting speed of the platform. As a unidirectional flow control valve, it integrates a built-in check valve, which can quickly close when reverse pressure occurs (response time <50ms), preventing oil backflow and ensuring system safety.​

Another key advantage of this hs8 hydraulic valve is its sectional design. Unlike integrated valves, this unidirectional flow control valve allows for modular combination-multiple valve sections can be assembled according to actual needs, adapting to hydraulic systems with multiple unidirectional control circuits. The sectional structure also simplifies maintenance: if a single section fails, it can be replaced independently without disassembling the entire valve, reducing downtime.​

• Precise Flow Regulation: The hs8 hydraulic valve is equipped with a micrometer-adjustable flow control knob, allowing operators to set the desired flow rate accurately, and the built-in pressure compensation function ensures stable flow output even when the system pressure fluctuates.​
• Reliable Unidirectional Blocking: As a unidirectional flow control valve, its check valve uses a spring-loaded sealing structure, which can achieve zero leakage in the reverse direction, effectively preventing pressure loss caused by oil backflow.​
• Sectional Flexibility: The hs8 hydraulic valve adopts a standard sectional connection size, supporting the combination of 2-6 valve sections, which can meet the control needs of multiple unidirectional circuits in complex hydraulic systems.​
• Durable Performance: The valve body is made of high-strength cast iron with anti-rust treatment, and the spool and check valve core are made of wear-resistant alloy steel, ensuring a service life of more than 10,000 hours under continuous operation.

HS8 series laminated multiway valves have introduced the European advanced technology, the specific structure is compact, high pressure resistance, long service life. HS8 each piece valve body may according to the customer request increase the overflow valve, the filling oil valve and so on. The control methods include manual control, pneumatic control, electro-hydraulic control and flexible shaft remote control, etc., to meet the different control requirements of customers. The valve is widely used in construction machinery, sanitation machinery, mining machinery and other machinery hydraulic system.

Simple, compact and heavy duty designed sectional valve from 1 to 12 sections for open and closed center hydraulic systems.

1 Fitted with a main pressure relief valve and a load check valve on every working section.

2 Available with parallel, tandem or series circuit.

3 Optional carry-over port.

4 A wide range of antishock+anticavitation port valves.

5 Intermediate sections for several types of circuit.

6 Available manual, pneumatic, electrohydraulic, proportional hydraulic, spool control kits.

7 Diameter 20 mm (0.79 in) interchangeable spools.

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