Pressure relief control valve

Claim 1

A pressure control relief valve to control flow of fluid from a higH pressure source to a low pressure receiving device comprising: a valve body including a fluid inlet and a fluid outlet with a chamber disposed therebetween; a valve cylinder having a plurality of openings therein, at least one opening being in communication with said inlet and at least one opening in communication with said outlet, said cylinder being disposed in said chamber, said cylinder having a valve seat with an axial opening therein disposed between said inlet and said outlet openings and adaptable for receiving a slidably mounted valve means thereon, said slidably mounted valve means including a valve ball of generally the same diameter as the inner bore of said valve cylinder and adapted to be slidably mounted therein for engagement with said valve seat for closing off said axial opening, said valve ball having a flat edge thereon, said flat edge being opposite the portion of said valve ball engaging with said valve seat and adaptable for independent communication with a valve disc of generally the same diameter as said inner bore of said valve cylinder and adapted to be slidably mounted therein, said valve disc being in communication with adjusting means; and, said adjusting means being adaptable for communicating with said valve means to adjust the resisting pressure of said valve means whereby flow of fluid through said valve is controlled by the pressure exerted by said adjusting means on said valve means.