It is an air piloted solenoid valve. It would allow us to control multiple of these from one electrically operated valve.
The plumbing is conventional. One pressure in, to out 1/8 npt but instead of being operated electrically they are operated by air pressure supplied by a conventional valve.
Al it was just an air piloted valve. We were thinking of using a single solenoid valve to supply air to 4 air piloted valves to control our shooter pistons but they are not in the list on R77.
Thanks