Abstract: A valve actuator assembly is disclosed. The assembly comprises a stator; an armature housing; and an adjustable spacer coupled between the stator and the armature housing, wherein the spacer yields at a controlled rate when an axial load is applied thereto. The adjustable spacer is positioned between the stator and the armature housing such that when an axial load is applied, the adjustable spacer compresses at a controlled rate, thereby allowing adjustment of the valve stroke. A system and method in accordance with the present invention is applicable to any valve which includes a housing containing a seat, an armature, a stator, and a mechanism that is capable of applying a load to the housing.