ES stemless valve

The ES stemless valve (ES) from Oxford Flow is an innovative axial flow valve that eliminates fugitive emissions by removing the stem and need for stem packing, which are the primary sources of leaks in traditional valves. 

Because the ES stemless valves do not have an external stem, there is no possibility of fugitive emissions through stem packing leaks. Further, because it does not have a mechanical drive train, it is not subject to stresses and side loading that cause poor performance and premature mechanical failure in other valve types.

ES utilises an electrohydraulic actuator that is compact and efficient to transmit force, requiring a power source and a 4 – 20mA control signal. This significantly reduces the size and weight of the overall valve package compared to conventional valve actuators. ES has a range of trims as well as hard and soft seated options for both control and isolation, and is available in sizes 2” to 24"+ and pressure classes up to ANSI 2500. 

The ES valve is designed to provide very high flow rates while minimising turbulence, erosion and wear on sealing surfaces. This enables reliable tight shutoff performance during operating cycles. It can be configured in a wide range of materials with flanged end connections for a wide range of service applications including oil & gas, petrochemical, hydrogen and more. 

With its innovative stemless design and electrohydraulic actuation, the ES valve achieves world-class performance, reliability and true zero-emission control and isolation.