Series VT 3 port, direct operated poppet valves are compact in size, yet provide large flow capacity, and low power consumption.  The series is suitable for use in vacuum applications.  The VT valve is a single valve with 6 functions (universal porting type) such as N.C. valve, N.O. valve, divider valve, selector valve, etc.  The manifold style valve, series VO, can be easily