Since many years, Guichon Valves is a reputed manufacturer of on-off valves for military submarines. Thanks to its knowledge of fluids circuits involved and of requirements linked to installation constraints, Guichon Valves has also designed and manufactured several types of high pressures and shocks resistant valves made in sea water resistant high alloys.

In the nuclear field, Guichon Valves has for example designed and manufactured regulating valves for fission products, dead area free sectioning valves to limit staff contamination risks and remote controlled tank cleaning and decontamination valves to avoid any human intervention in dangerous areas.