ROSS 400C79

Technical Specifications

• Operating Pressure Range: 0.12 MPa ~ 0.8 MPa
• Proof Pressure: 1.2 MPa
• Operating Medium: filtered compressed air, nitrogen inert gas
• Ambient Temperature: ‑5 °C ~ +60 °C
• Port Connection: 3/8 inch NPT thread
• Coil Voltage: 100‑130 V AC Functional Features
• Dual‑solenoid latching design; valve position holds when both coils de‑energized
• Internal pilot actuation for fast valve‑switching response
• High‑flow internal passage with low pressure drop
• Anti‑vibration heavy‑valve‑body construction for harsh heavy‑industry environment
• Metal spool for extended service life under cyclic operation Application Scenarios
• Metal stamping press machinery pneumatic control
• Forging equipment pneumatic actuation circuits
• Steel‑plant heavy‑duty pneumatic systems
• Heavy‑duty automation machine tool pneumatic control Performance Parameters
• Fast switching response for safety‑critical machine motion
• High resistance to mechanical vibration and cyclic shock Material Composition
• Main valve body: high‑strength cast aluminum alloy
• Spool: hardened metal alloy
• Seals: nitrile rubber compound for compressed‑air service
• Solenoid coil housing: thermoplastic high‑temperature‑resistant material Structural Characteristics
• Integrated pilot‑valve manifold structure
• Dual‑solenoid coil assemblies mounted on valve‑body sides
• Standard NPT threaded process ports
• Multiple mounting‑hole bosses for base‑plate mounting Working Principle: Electrical pulse energizes one solenoid coil to actuate internal pilot spool. Pilot air pressure shifts main spool and establishes main‑air‑flow path. Dual‑solenoid latching mechanism mechanically holds main‑spool position after coil power is removed. Opposite‑side solenoid pulse reverses spool position and air‑flow direction. Installation Requirements
• Mount on rigid valve‑base manifold; mounting orientation vertical or horizontal is permitted
• Supply filtered, dry compressed‑air medium; install air‑filter regulator upstream
• Torque NPT threaded ports to correct torque value; avoid over‑torque thread damage Usage Notes
• Use only clean, dry filtered compressed‑air; particulate contamination causes spool sticking
• Solenoid coils only accept rated voltage; over‑voltage burns coil windings
• Lubricated or non‑lubricated air service compatible; avoid excessive oil mist
• Periodically inspect seal condition for high‑cycle‑count applications