I am looking for some waterproof connectors in saltwater (ocean water). I am driving 3 valves underwater up to about 50 psi, and I want to be able to be able to disconnect these components for servicing. The valves themselves are already in a waterproof enclosure and wires are ported through the enclosure and potted with marine epoxy. If I was redesigning this, I would probably use a bulkhead connector. But at this time I have opted to use a free-hanging connector to provide the ability to electrically disconnect and service. I am using 12VDC and the valves draw about 1A while opening.
I am looking at WM4562-ND and WM4569-ND for the male and female connectors, respectively. I would like to use one of these male/female pairs for each valve. Do I need to worry about arcing across the the connections? Will these connectors work in saltwater?