SQ1231DN-51-C4-Q: Highly Integrated, Intelligent Flow Control! Modular 5-Port Solenoid Valve Empowers High-Density Pneumatic Systems

In modern high-density, modular pneumatic control systems, higher demands are placed on the integration level, response speed, and intelligent diagnostic functions of solenoid valves. The SQ1231DN-51-C4-Q is a 5-port solenoid valve designed specifically for manifold (subplate) installation, featuring a compact structure, pilot-operated high-efficiency control, and rich functional options, making it an ideal control core for complex multi-actuator systems. Core Product Advantages

• High-Density Subplate Integration Utilizes a tubeless subplate mounting design (compliant with ISO 5599/1 standard). Multiple valves can be closely arranged on a common manifold, unifying the air supply and wiring. This greatly saves space, simplifies piping layout, and reduces potential leak points.
• Dual-Coil Control with Memory Function Employs dual-coil pilot control (“DN” likely indicates dual-coil). The coil is pulse-energized to drive the spool to shift. Once de-energized, the spool remains in its last position (memory function), preventing unintended actuator movement due to accidental power loss and enhancing system safety.
• Pilot-Operated for High Flow Pilot-operated design allows a small electromagnetic force to control the high-flow main air path. It offers fast response, low power consumption, and high flow capacity (Cv value), capable of driving large cylinders or multiple actuators.
• Smart Feedback & Communication Built-in valve spool position sensing switch (“C4” may indicate sensing function) provides real-time spool position feedback. Supports digital communication like IO-Link, enabling remote parameter configuration, status monitoring, and fault diagnosis.
• Manual Override & LED Indication Includes a manual override button (push-pull type) for easy commissioning, maintenance during power-off, or emergency intervention. Bi-color LED indicators clearly display the valve’s operating status, making fault diagnosis straightforward.

Typical Application Scenarios

• Multi-station automation control: Used to control multiple cylinders or pneumatic units on assembly lines, packaging machines, CNC machine tools, etc.
• Safety interlock systems: Applied in safety control circuits requiring dual-signal confirmation, such as two-hand start, safety door interlock.
• Compact control cabinets: For automated equipment with strict space constraints, like semiconductor equipment, medical instruments.

Technical Parameters (Typical Values)

• Mounting Type: Subplate mounting (ISO 5599-1 standard base)
• Valve Function: 5-port, 2-position (5/2-way, for controlling double-acting cylinders)
• Operating Pressure: 0.15 ~ 0.8 MPa
• Coil Voltage: DC24V (“C4” may indicate voltage or communication code)
• Protection Rating: IP65

Conclusion The SQ1231DN-51-C4-Q solenoid valve is the “intelligent control unit” for modular pneumatic systems. Through its subplate mounting and integrated design, it consolidates distributed control points into a tidy, efficient control center, significantly enhancing system reliability, maintainability, and space utilization. Choosing the SQ1231DN-51-C4-Q means choosing to build an efficient, compact, and intelligent pneumatic control platform for your automated equipment