The Humphrey HA040-4E1 24VDC is an indirect-acting solenoid valve introduced by Humphrey in the United States, specifically designed for industrial pneumatic control systems. Featuring a manifold-mounted structure, it is suitable for high-frequency switching and medium-to-low flow scenarios, with a particular emphasis on space optimization and long-term stability. Its core advantages lie in its low-power-consumption drive (24VDC coil) and modular interface design, making it well-suited for precision control applications in automated production lines, packaging machinery, medical gas supply, and other fields.
Key Design Features
Indirect-Acting Working Principle
• Pilot Air Pressure Drive: The main valve spool is controlled by a small-bore pilot chamber, reducing the load on the electromagnetic coil. Power consumption is only 4.5–8.5W (referencing similar 310/410 series), significantly reducing energy consumption and heat generation.
• High-Pressure Compatibility: Supports a working pressure range of 0–125 psi (approximately 0–8.6 bar), with a peak pressure tolerance of up to 1.5 times, adapting to environments with pressure fluctuations.
Modular Structure and Installation
• Manifold Integration Design: The valve body is equipped with standardized interfaces (such as ISO 5599-1) at the bottom, supporting parallel installation of multiple valve groups, saving space and simplifying piping layouts.
• Multi-Directional Installation Adaptability: Can be installed horizontally or vertically without additional brackets, accommodating compact equipment internal spaces.
Material and Sealing Technology
• Corrosion-Resistant Valve Body: Made of anodized aluminum alloy or brass, it is resistant to moisture and weakly corrosive gases (such as medical oxygen and industrial compressed air).
• Long-Lasting Sealing System: Standardly equipped with NBR/FKM seals, compatible with a temperature range of -25°C to +150°C (FKM type), with a leakage rate of less than 0.1 cc/min (under standard conditions).
Electrical and Response Performance
• 24VDC Wide Voltage Compatibility: Supports ±10% voltage fluctuations and incorporates an overload protection circuit to prevent coil burnout.
• Fast Response Time: The opening and closing action time is ≤15ms, supporting high-frequency cycling (up to 600 cycles per minute), meeting the demands of high-speed production line rhythms.