A flow control device comprising a housing formed with a valve chamber including a seat on which a tiltable valve is adapted to be disposed in sealing engagement therewith. A controlled opening of the valve is achieved by an actuator operatively connected to the stem portion of the valve so as to effect a tilting of the head portion thereof relative to the valve seat. The design of the individual components comprising the valve assembly enables their fabrication from plastic materials by modern molding techniques providing a precision valve assembly at a fraction of the cost of similar type valves heretofore known.
