Energy services provider Expro has launched Solus, its high-debris single shear and seal ball valve system that offers additional flexibility, functionality and safety to subsea well access solutions ...

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Abstract: The 3/2 water proportional directional valve (PDV) is an important hydraulic component to ensure a precise, low impact, and safety control of hydraulic powered roof support, which has been a ...

Abstract: The directional valves, being a critical component of the hydraulic system, requires effective fault diagnosis to enhance the system’s operational efficiency and reliability. However, fault ...