How Pyro Valves Work
Pyro valves (also known as explosive or one cycle valves) are used to open up or close off flow through to a liquid or gas stream.
The input stimulus required to operate the pyro valve can be electrical, laser, SMDC tip, gas pressure pulse, or Pyrovalve percussion primer.
The open valve is activated by firing a pyro cartridge creating gas that expands rapidly in a confined space resulting in a volume change driving a piston into the flow stream to close off flow, or to open flow.
The valve with welded connections offers long term zero leakage, and in any configuration can have high burst pressure (factor of safety) to specified operation pressures.