Abstract: A pressure regulator configured to reduce fluid flow droop is provided. The pressure regulator comprises a regulator housing having an inlet port, an outlet port and a fluid flow passage therebetween. A valve seat is positioned in the fluid flow passage and a valve plug cooperates with the valve seat to control the flow of a fluid through the fluid flow passage. A bypass plate retains the valve seat in the fluid flow passage, and separates the fluid flow passage from a sensing chamber. The bypass plate includes a flow aperture positioned in the flow passage and at least one aspirator that provides communication between the flow aperture and the sensing chamber. The flow aperture is configured to provide a low pressure region relative to the pressure in the fluid flow passage, wherein the aspirators are configured to communicate between the low pressure region and the sensing chamber.

Abstract: A fluid flow control valve that may be used as both a check valve and a relief valve. The valve includes a moveable valve member having a surface capable of forming two or more valve seal areas with two or more valve seat surfaces on a valve seat member. The valve seat surfaces may be formed by coining a portion of valve seat surfaces on fingers of the valve seat member. One of the valve seat fingers in inclined from the outlet toward the inlet. The valve seat member is metal, forming a metal to metal valve seat arrangement with the valve seat member.