Are you experiencing premature valve failures due to solenoid coil burnout?
Consider the Mac Advantage: Mac's patented, movable pole piece design offers two distinct benefits: (1) wear compensation, and (2) a burnout-proof AC solenoid. The length of the poppet stroke starts out shorter than the length of the solenoid stroke, with the movable pole piece absorbing the excess stroke. If the poppet begins to wear, the poppet will still seal because of this built-in "extra" stroke.
This feature allows Mac to offer its customers a LIFE-TIME WARRANTY on all its solenoid coils.
Additionally, if contaminant prevents the poppet from fully seating, the movable nature of the pole piece will allow it to magnetically mate with the armature. This will drop an AC coil out of in-rush current into holding current, thereby eliminating the most common cause of solenoid burnout.
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