Humphrey is a century-old American manufacturer of pneumatic components (established in 1901). Its 310 series is renowned for its compact structure, high response speed, and wide pressure adaptability, making it suitable for applications in industrial automation, medical equipment, and packaging machinery. The 3102139 24VDC is a DC-driven model within this series, specifically designed for precision pneumatic control systems.
Key Design Features
Direct-Acting Drive Structure
• Zero Pressure Differential Start-Up: The direct-acting design requires no pilot pressure, enabling reliable opening and closing within a pressure range of 0 PSI (vacuum) to 125 PSI, with response times of ≤12ms (opening)/20ms (closing) and supporting high-frequency operation (600 CPM).
• Compact Valve Body: Measuring only 2.38×0.75×1.25 inches (approximately 60×19×32mm) and weighing 4 ounces (approximately 113g), it is well-suited for integrated scenarios with limited space.
Versatile Flow Path Configuration
• Three-Way Multi-Functionality: The 3-port (1 inlet, 2 outlets) design supports normally closed (NC), normally open (NO), flow diversion, or selector functions. By plugging ports, it can be switched to 2-way control, flexibly meeting complex pneumatic circuit requirements.
• Inert Material Compatibility: The parts of the valve body that come into contact with the medium are made of anodized aluminum, stainless steel, and nitrile rubber, which are resistant to air, inert gases, and weakly corrosive media, eliminating the need for lubrication.
Electrical and Sealing Reliability
• 24VDC Low Power Consumption: With a power consumption of 4.5W and a voltage tolerance of +10%/-15%, it incorporates a built-in DIN Micro Type C connector with a tamper-proof design to enhance stability in industrial environments.
• IP Rating Protection: The standard encapsulated coil offers dust and splash resistance (referencing similar products with an IP65 rating). The lead wire length is 24 inches (optional 72 inches), making it suitable for humid and dusty working conditions.