MAC 55B-11-PI-590JJ Solenoid Valve The MAC 55B-11-PI-590JJ is a high-performance 3-way solenoid valve designed for precise pneumatic control in various industrial applications. As part of MAC’s 55 Series, this valve offers versatility and reliability, making it a preferred choice for engineers and technicians. Key Features Valve Type: 3-way, normally closed Port Size: 1/4″ NPTF Pilot Type: Internal pilot air Operating Pressure Range: 30 to 150 PSI Voltage: 24 VDC Power Consumption: 2.5 watts Manual Operator: None (no manual override) Connector Type: Square connector (male only) Design and Construction The 55B-11-PI-590JJ features a balanced spool design piloted by a small direct-operated balanced poppet valve. This configuration ensures consistent performance and allows for easy conversion between internal and external pilot functions by simply rotating the adaptor between the pilot and main valve bodies. Additionally, the valve can be adapted for remote air operation by removing the solenoid pilot assembly. Performance and Applications With a maximum flow coefficient (Cv) of 2.2, the valve provides efficient airflow suitable for a wide range of pneumatic systems. Its robust construction and adaptable design make it ideal for applications requiring reliable and flexible pneumatic control. Installation and Compatibility The valve’s 1/4″ NPTF ports facilitate straightforward integration into existing systems. The square connector ensures secure electrical connections, and the absence of a manual operator simplifies the design for automated processes. For more detailed information and technical specifications, please refer to the manufacturer’s documentation.