Cage assembly with throttle rings

Cage valve, comprising:

• a valve cover, a piston, a piston guide, a valve body, and a valve cage,
• said valve cage comprising:
• a retaining element, said retaining element includes an end portion and said end portion includes a valve seat, and a plurality of throttle elements,
• said retaining element receives and secures said throttle elements, said throttle elements include throttling discs for fluid communication therethrough depending on the position of said piston;
• said retaining element resides distally with respect to said cover;
• said retaining element has an external thread, said piston guide includes an internal thread, and, said retaining element is threadedly interconnected with said piston guide, and,
• said valve cage is connected to said valve cover and said valve cage and said valve cover are removable from said valve body as a unit.