A leading supplier of commercial and military land vehicle manufacturers in Turkey, with whom we collaborate on various solutions, requested EN standard IPX3-X4-X9K tests and additional tests for incoming quality control of their products, as well as pressure testing in closed chambers. We delivered a system that combines these three different requirements into a single device. The system conducts tests by spraying water at 150 bar and 80 degrees Celsius or filling it into a closed chamber. As no solenoid valve capable of opening and closing water flow at 150 bar and the required flow rate was available, five high-pressure butterfly valves driven by pneumatic actuators were designed and used in the project. Our company undertook the Design, Manufacturing, and Automation aspects of the project.