1/4" NPT 5 Port 4 Way Actuator Mount Solenoid Valve (110VAC DIN) 200C Coil (4V210-1/4B is not NAMUR style, 4V310-1/4B is NAMUR style)
The 4V210-1/4B is a pneumatic directional solenoid valve with a four-way operation & five ports (P = Pressure, A = Outlet, EA = Exhaust for port A). Four-way, two-position valves are generally used to fully extend a double acting (air return) cylinder, or in applications with similar operation. NAMUR-style valves are designed to mount onto standard pneumatic actuators to control the operation of air-actuated valves (ball valves, etc.)
For more information, please see Data Sheet