Axial Flow Valve - ES

Oxford Flow Ltd

High-performance axial flow valve with direct hydraulic actuation.
Eliminates mechanical actuator/drivetrain, reducing fugitive emissions.
API 6D / ASME B16.34 design; API 6FA Fire Safe.
ISO 15848-1 Class AH C03 fugitive emissions performance.
Compact size/weight; debris tolerant; non-intrusive position sensing.

The ES Stemless Valve is a high-performance, axial flow valve designed for use in the most demanding isolation and control applications within the oil and gas industry. It eliminates the traditional mechanical actuator and drivetrain in favor of direct hydraulic actuation, offering class-leading performance and reliability. This game-changing technology from Oxford Flows ES Series valve is recognized for its innovation, having been awarded the Best Mechanical Engineering Achievement Award by the American Society of Mechanical Engineers (ASME) and named in the Top 10 Global technologies in the ADNOC Decarbonization Technology Challenge for eliminating fugitive emissions. The valve is constructed with stainless steel 316 components, featuring energized PTFE seat materials and spring-energized PTFE dynamic seals, ensuring durability and reliability. It is certified to API 6D/ASME B16.34 standards and offers various fail-safe options, back-up manual hydraulic overrides, and non-intrusive position sensing, making it a versatile and efficient solution for upstream, midstream, and downstream oil & gas applications.

Use Cases

Use with confidence in Upstream and Midstream Oil & Gas infrastructures.
Suitable as a replacement for multiple valve types (ball, gate, plug, butterfly, globe).

Capabilities

Reliable internal hydraulic actuation for isolation and control.
Fail-safe options and back-up manual hydraulic overrides available.
Tight shut-off (Class VI soft seat / Class IV metal seat).
Operation across ASME #300–#1500 pressure classes and −40°F to +284°F temperature range (seal-dependent).

Oxford Flow Ltd Oxford Flow is a UK-based engineering company that designs and manufactures advanced valve and flow control technology with a strong focus on low-emission and hydrogen-ready solutions. Originating as a spin-out from the University of Oxford’s Thermofluids Institute, the company develops patented, precision valves and pressure regulators engineered for reliability, minimal maintenance, and zero fugitive emissions — important qualities for energy transition applications including hydrogen and hydrogen blends. Oxford Flow’s hydrogen-ready regulators and valves have been independently tested for use with 100 % hydrogen and are positioned to support next-generation gas distribution, transmission, and clean energy infrastructure.

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