Flow systems utilizing Enfield Technologies proportional pneumatic valves are ultra-fast and almost perfectly linear. With response times less than 3ms, the LS-Series valves are 4 to 7 times faster than high-performance solenoids. Unprecedented valve aperture control delivers smooth metering of the air or inert gas without pulsing air. The valves can also be used as high speed switching valves in blow-off and gas sourcing or mixing applications. One LS-series valve can often replace up to 4 on/off valves. This decreases complexity and lowers both purchase and maintenance costs.