The MAC 100 Series is a direct solenoid operated 3-way poppet valve. It features a short stroke solenoid, a balanced poppet and powerful return spring. These features translate into high shifting forces, fast consistent response times, and long life. Our unique balanced design means versatility in piping – the valve can be configured as a 3-way or 2-way – normally closed or normally open or can be used for vacuum, diverter, or selector applications.