Hydraulic Valve Actuator

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This hydraulic valve actuator or solenoid coils come in a range of power levels, DC coils are measured in Watts, AC coils measured in VA (Volt Amps) and will have a higher Inrush current and lower Holding Current. It is a bit like weight lifting a weight requires more energy than holding it up arms locked. The power level formula: Watts = volts x amps. You need to pay attention the power ratings, under rated coils will over load and burn out and too higher power rating may well do the same. Sometimes you find a normal read on the digital multimeter but the coil is actually not functioning. At this time, you can use a screwdriver and put it near the armature then energize the solenoids. If there is a magnet in the presence, the coil is good. Otherwise, it is bad, and you need to change a new one. Try to stay with the same power level unless the coil fails quickly then check voltage supply and current availability then if need, please consult your supplier. Welcome to visit !