Humphrey (Hanfrey) is a century-old American pneumatic brand (established in 1901) that specializes in the research and development of solenoid valves, cylinders, and pneumatic control components. Renowned for their high reliability, rapid response, and modular design, its products are widely applied in industrial automation, energy equipment, and fluid control systems.
Core Design Features
Internal Pilot-Operated Structure
• Low-Power Drive: Utilizing a pilot piston structure, it requires only DC24V/0.5A for actuation, with power consumption ≤4.5W, achieving over 30% energy savings compared to direct-acting valves.
• High-Pressure Adaptability: The pilot orifice design allows the valve to open and close stably under pressures ranging from 0 to 125 psi (approximately 8.6 bar), with a peak pressure resistance of 1.5 times the working pressure.
Multi-Directional Installation and Compact Design
• Flexible Installation: Supports base mounting, body threading (1/8" NPT), or in-line piping installation, accommodating narrow space layouts.
• Lightweight Materials: The valve body is constructed from aluminum alloy and stainless steel components, weighing ≤0.8kg, with corrosion resistance meeting C4 standard (salt spray test >500h).
Modular Sealing and Electrical Protection
• Sealing System: Standardly equipped with FKM fluororubber seals, it is compatible with hydrogen, air, and weakly corrosive media (such as industrial gases containing a small amount of water vapor), with a temperature range of -20°C to 80°C.
• Electrical Interface: Optional DIN connectors (Code 39) or waterproof connectors (IP65 protection) are available, suitable for humid and dusty environments.
Functional Expandability
• Bidirectional Flow Control: Supports 2-way or 3-way configurations (normally open/normally closed options), with a flow rate of up to 24 CFM (under 125 psi conditions), meeting high-frequency switching requirements (response time <50ms).
• Manual Emergency Override: Optional mechanical override switches (Code 80) are available for manual operation of valve status during power outages.
The Humphrey HA040-4E2, with its pilot-operated low-power drive, wide pressure range stability, and hydrogen compatibility, becomes an ideal choice for new energy equipment and precision industrial control. Its modular design further simplifies system integration and maintenance processes, continuously providing cost-effective solutions in the field of automated pneumatics.