Overview
The MAC 812C-PM-611BA-112 is a proportional solenoid-piloted pneumatic control valve from MAC Valves’ proven 800 Series platform. This 5/2-way directional control valve features single solenoid actuation with external pilot air and mechanical spring return, delivering reliable on/off or proportional flow switching for pneumatic circuits rated up to +200 psi. The valve comes moulded with flying leads for easy integration into existing panel layouts.
Key Features
- 5/2-way, single solenoid piloted configuration with external pilot air supply
- Monostable operation: pneumatic spring return to neutral position
- Non-locking recessed manual operator for field override capability
- Integrated solenoid coil (24VDC, 8.5W) with Class A encapsulation
- Flow coefficient (Cv) 1.4 for reliable flow control
- Muffled pilot exhaust prevents contamination
- Piston spool design rated for vacuum to +200 psi operation
- Individual in-line mounting with 1/4″ NPTF female pneumatic ports
Technical Specifications
- Manufacturer: MAC Valves Inc.
- Model / Part Number: 812C-PM-611BA-112
- Valve Series: 800 Series
- Configuration: 5/2-way, 5-port, 2-position
- Solenoid Type: Single solenoid, pilot-operated
- Operating Principle: Piston spool valve with spring return
- Solenoid Coil Voltage: 24VDC
- Power Rating: 8.5W (P8.5W)
- Pressure Range: Vacuum to +200 psi
- Flow Coefficient (Cv): 1.4
- Port Size: 1/4″ NPTF female threaded
- Mounting Method: Individual in-line installation
- Pilot Supply: External pilot air (separate connection)
- Manual Override: Non-locking recessed operator
- Enclosure Class: Class A encapsulated solenoid
- Exhaust Type: Muffled pilot exhaust
- Connection Type: Moulded cable with bare flying leads
- Valve Body Dimensions: H 60 mm × W 30 mm × D 200 mm
- Lubrication: Not required if air is properly filtered
- Standards Compliance: CSA C-US (cCSAus), IEC 61595
Typical Applications
The MAC 812C-PM-611BA-112 is widely used in:
- Pneumatic automation and process control circuits
- Manufacturing equipment and robotic systems
- Medical device and laboratory instrumentation
- Food and beverage processing machinery
- Packaging and material handling systems
- Testing and inspection equipment requiring proportional flow control
- Legacy system replacements in industrial facilities
Compatibility & Replacements
Compatible With
- MAC Valves 800 Series manifolds and sub-bases
- Standard pneumatic systems (filtered, regulated 40–100 psi air supply)
- External pilot air systems up to 200 psi
- Industrial PLC/motion controllers with 24VDC discrete outputs
- Generic pneumatic hose fittings rated 1/4″ NPT
Replaces / Drop-In Replacement For
- 812CPM611BA112 (equivalent part number without hyphens)
- Other MAC 800 Series 5/2-way single solenoid models with identical port and solenoid specifications
Works With
- 24VDC discrete relay modules and PLC output cards
- Pneumatic proportional control systems (when used with flow regulators)
- Industrial automation platforms: Siemens TIA Portal, Rockwell Studio 5000, Mitsubishi, Omron
- Standard pneumatic line sizes 1/4″ NPT and metric equivalents
