PRESSURE REGULATOR

摘要

A regulator (100) having a valve body (102) defining a flow-path (108) for a fluid and having a valve seat (104), an actuator casing (122, 124) coupled to the valve body, a control member (130) disposed within the actuator casing and adapted for displacement relative to the valve body and the valve seat for regulating a flow of the fluid through the flow-path by moving between an open position and a closed position wherein the control member engages the valve seat, and a spring (193) operatively coupled to the control member and biasing the control member toward the open position. The control member includes a surface facing the valve seat that is recessed. The recessed surface may be a counter-bore (148), or may have a convex shape, conical shape, or other appropriate recessed surface. So configured, the regulator displaced improved stability in high inlet pressure, low output pressure, high flow rate implementations.