I'm having a hard time envisioning a scenario where the fuel pump is running out of control and the ECU does not command the solenoid valve (down stream of the pump) to shut off and cause the same result as closing a manual valve in a similar location. Do you guys who put your shutoff valves before the pump also put the solenoid valves there? I notice that JetCat and JetCentral manuals show both valves after the fuel pump.

I have personally never had the occasion to (or seen anybody else that I recall) shut down a turbine with the manual shutoff valve. I would like to hear the particulars of instances where guys had to do it.

Since the larger 6mm shutoff valves I am familar with are Festo types, I don't like to use them on the suction side. I like to use the barbed Jetcat style 4mm valve after the pump.

Craig