Sub assemblies of piston rod and piston assembly and method for mounting a blowout preventer operator of a piston rod assembly

摘要

This is an assembly of piston rod for use in a montage of blowout preventer operator which includes a piston rod which has a threaded interface of rod and a stem shoulderAn outer diameter of the piston rod. A ring of preload has an interface screw ring for coupling the interface screw rod to engage the piston rod to the ring of preload.A surface of the end projetante piston rod protrudes beyond an end face of the ring pre load when the piston rod is coupled to the ring of pre load and when the shoulder DAnd the rod engages a shoulder of the ring of ring pre load. A piston has a receptacle for receiving the ring of preload.The fastener preload ring engages the ring to pre load the piston to form a piston rod connection between the piston rod and the piston.So that the surface of the end projetante if the coupling an inner surface of the receptacle and a pre load is induced in the connection of piston rod.