Model S20A High Speed Gas Valve

Applied Pulsed Power, Inc. designed the High Speed Gas Valve for use in pulsed plasma and ion diode systems which require radial gas flow and fast gas pressure rise and fall times. The valve has operated continuously in vacuum at 5 pulses/second and up to 100 pulses/second in burst mode, with only air cooling on the body. The duty cycle is limited by heat rejection, which varies with mounting, the operating environment, and the cooling method. The gas pressure profile is highly reproducible from pulse to pulse. The valve has been used with inert gases, hydrogen, nitrogen and air.

The valve contains a magnet coil which is pulse driven. The magnetic field imparts a force to the single moving part, a low mass beryllium copper Belleville spring diaphragm. The diaphragm briefly lifts off the seal at its outer diameter, permitting gas to flow radially from the valve, before it snaps shut. The design life of the diaphragm is 108 pulses and it is easily replaced.

Download the Model S20A Data Sheet.