DG4S4-01 50 Series Danfoss / Eaton Coils

Continuous duty is built into the design of these coils, so running them for extended periods without cycling is exactly what they're rated for. They're not intermittent-duty parts you have to baby. That said, flow rates do vary depending on your spool and spring combination, so make sure that side of things lines up with what your valve setup calls for.

For older equipment, this matches the older style direct acting air gap solenoids used on DG4S4-01 50 Series valves. New applications are called out to use the Wet Armature 60 Series instead, but for replacing an existing older setup, this is the air gap coil style.