HYDRAULIC UNION ASSEMBLY

摘要

A hydraulic union assembly for joining pipes includes an outer body that threads the female hub, an inner body or piston that generates an axial force under hydraulic pressure, a hydraulic port and seals to maintain the hydraulic pressure with in the annular pressure area that operates in an elastic region and continues to actuate hydraulic pressure after repeated operating cycles, and preferably a mechanical threaded locking collar to retain axial force after release of hydraulic pressure.