What is the purpose of the ackpressure dump solenoid valves?
Each of the two reactant gas streams has a normally open solenoid valve installed to bypass the backpressure regulators in an emergency stop situation. As one example, when the emergency stop button on the front panel is pressed, all of the gas feed valves close and the backpressure dump valves open. This ensures that reactant gas flow to the fuel cell is stopped and backpressure on the fuel cell is relieved.
