Description

A knuckle joint is a universal joint for use between movable and non-movable pipes. Because the surface of the ball joint and the inner ball are on the same axis it will always return to its original position with accuracy, meaning no excessive force is applied to the pipes. Leaf springs are used to ensure no excessive force is applied to the springs, even when rotated in the opposite direction. The inner ball and ball washer respond to eccentricity, enabling balanced spring performance under perpendicular loads. Lifespan is further improved by the addition of a Teflon seal to the hard chrome-plated seal ring on the ball joint surface.