Overview
The MAC 6343D-311-PM-112DA solenoid valve is a double solenoid, pilot-operated directional control valve from MAC Valves’ 6300 series. Designed for compressed air and inert gas applications, this compact spool valve provides four-port, three-position functionality with spring-centered, open-center operation. The unit features a non-lubricated design and muffled pilot exhaust for clean, quiet operation in industrial control systems.
Key Features
- Non-burn-out solenoid technology: MAC’s patented solenoid design ensures reliable AC service without coil failure risk.
- Pilot-operated actuation: Requires minimal pilot air pressure for smooth directional shifting and consistent flow control.
- Accumulator-equipped: Large internal accumulator ensures consistent shifting on double solenoid models.
- Plug-in design: Modular construction allows flexible internal/external pilot configuration with optional lights and manual operator.
- Spring-centered operation: Automatic return to neutral center position when solenoids are de-energized.
- No external lubrication required: Maintenance-free operation; optional lubrication available if needed.
Technical Specifications
- Solenoid Voltage: 120VAC (50/60 Hz)
- Solenoid Wattage: 6.8W
- Maximum Pressure: 150 PSI
- Maximum Flow Rate: 3.0 Cv
- Port Configuration: 1/2″ NPT (SAE 4-port)
- Spool Configuration: 1-spool, 4/3-way open center
- Valve Operation: Double solenoid pilot-operated
- Mounting: Valve body plug-in (base and porting sold separately)
- Pilot Exhaust: Muffled
- Operating Medium: Filtered compressed air or inert gases
- Dimensions: 70mm H × 72mm W × 210mm D
- Applicable Fluid: ISO VG 46 mineral oil or equivalent (if lubricated)
Typical Applications
- Industrial pneumatic control systems and automation equipment
- Directional flow control in compressed air circuits
- Machine tooling and assembly line automation
- Cylinder and motor actuation circuits
- Manufacturing equipment with pilot-operated valve requirements
- OEM equipment retrofits and spare parts replacement
Compatibility & Replacements
Compatible With
- Compressed air supply systems (filtered, regulated air)
- Inert gas applications (nitrogen, argon)
- Pneumatic logic circuits and automation controllers
- PLC-controlled directional control systems
- Industrial automation platforms using 120VAC power
Replaces / Drop-In Replacement For
- 6343D-000-PM-112DA (alternative base configuration)
- 6343D-311-PM-111DA (110VAC variant)
- Other MAC 6300 series 4/3-way open-center pilot valves with equivalent flow and pressure specs
Works With
- MAC 6300 series plug-in base modules and manifold assemblies
- Standard SAE ported pneumatic plumbing (1/2″ NPT fittings)
- 24VDC or 120VAC solenoid control signals from PLC outputs
- Manual and lever-operated control stations
- Pressure relief, flow control, and directional spool combinations
