TOP ENTRY BALL VALVE, INSTALLATION ASSEMBLY, AND METHOD THEREFOR

摘要

An installation assembly for installing and/or removing a ball (28) into and/or from a valve body (14) of a top entry ball valve includes a valve body having at least one blind bore (38a, 38b) disposed on an opposite side of the ball chamber from the entry opening (26) and a ball installation tool (42) adapted to interact with the blind bore so as to compress a spring (34) disposed inside the ball chamber substantially axially. A top entry ball valve is arranged with such a valve body. The ball installation tool may be used to install and/or remove a ball from the valve body.