Humphrey (an American brand) is a professional name in the field of pneumatic control, specializing in the research and development of high-performance solenoid valves and pneumatic control components. The H110-4E1-PSL-1L belongs to its series of pilot-operated pneumatic directional control valves, renowned for its compact design, low power consumption, and high reliability. It is widely applied in industrial automation, energy equipment, and mechanical control sectors.
Key Design Features
Structural Optimization
• Pilot-Operated Driving Principle: Utilizes a low-power solenoid coil to control the pilot air circuit, driving the main valve spool to change direction. This significantly reduces energy consumption (typical power consumption ≤5W) while supporting high flow rate control (Cv value ≥0.14).
• Modular Sealing System: Adopts Y-shaped combined seal rings with a sleeveless self-lubricating design, reducing wear and tear. It is compatible with media such as air and inert gases, with an operating temperature range from -10°C to +80°C.
• Explosion-Proof and Protective Design: The coil has a protection rating of IP65, with explosion-proof models available (Ex d IIC T6) for use in flammable and explosive environments.
Functional Characteristics
• Bidirectional Flow Control: Supports bidirectional equal flow rate directional control, meeting the forward and reverse motion requirements of cylinders and actuators without the need for additional directional control valves.
• Low Differential Pressure Start-Up: The minimum operating differential pressure is only 0.2 bar, ensuring stable response in low-pressure systems with opening and closing times ≤15ms.
• Integrated Pressure Regulation: The suffix "PSL" indicates the integration of a pressure regulation module (20~100 PSI, approximately 1.4~6.9 bar), allowing on-site adjustment of output air pressure.