Patent ID: 8814130

Claim:
A self-regulating valve for controlling fluid flow from a source of high pressure fluid, the valve comprising: a valve body defining an axially extending cavity having an open lower end and a discharge port opening to the cavity; a control piston movable within the cavity of the valve body along an axis between a first and a second position; a two-piece plug having a first plug body and a second plug body, the second plug body being axially movable relative to the first plug body, the first plug body movable within the cavity of the valve body along the axis between a valve closed position, a valve partially open position, and a valve fully open position, the second plug body axially movable relative to the control piston and separate from the control piston; a valve actuator that allows the first plug body to move from the valve closed position to the partially open position; and a control piston actuator that causes the control piston to move from the first position to the second position when a fluid pressure in the fluid source is less than a predetermined pressure thereby allowing the first plug body to move from the valve partially open position to the valve fully open position.