Metso Flow Control Oy

Kalle Vuorio

Jan Gunell

A fluid valve assembly for controlling a single-acting or double-acting actuator comprises a valve body having a central bore with at least one supply port for receiving a supply of fluid under pressure, at least one actuator port (C,C) for providing a control fluid pressure to an actuator, and at least one exhaust port (EX,EX). At least one pair of counter-acting metering edges operationally tied together by a stem movable within central bore in an axial direction a pilot force. Each metering edge of each counter-acting pair comprises a mating seat surface (PS,PS,PS,PS) on the valve body or the stem, and a poppet ring (PR,PR, PR,PR) supported by a flexible element (SD,SD,SD,SD) to the valve body or the stem in a manner allowing a relative axial movement of the poppet ring and the supporting valve body or stem also in a closed state of the respective metering edge.

Growing community of inventors

Helsinki, Finland

Kalle Vuorio