Patent ID: 6595235
Filing Date: 2003-07-22
Classification: G05D,Y10T

Abstract:
A fluid flow control valve for controlling a flow of fluid, the valve comprising:a housing defining an inlet, an outlet, and a fluid flow passage extending therebetween; an orifice disposed in the fluid flow passage of the housing, the orifice having a first end defining a first seat and a second end defining a second seat, each seat having a main support surface defining at least one channel therein, each channel extending in a generally radial direction of the orifice; and a deformable and bendable elastomeric diaphragm disposed in the fluid flow passage of the housing, the diaphragm having an end face that is urged against a respective one of the seats of the orifice by the flow of fluid through the valve, wherein the orifice is configured to be positioned in either a first orientation or a second orientation, the first orientation having the first seat opposing the diaphragm, and the second orientation having the second seat opposing the diaphragm.