Self-aligning spring seat for fluid regulator and fluid regulator comprising self-aligning spring seat

摘要

A spring seat for self aligning a bias-open or bias-close spring is disposed within a tubular control element (130) of a gas regulator (100) and designed to reduce side loading of the spring (193), which can cause the spring to prematurely fail. The spring seat can comprise a spring seat adaptor (200) and a seat ring (202). The spring seat adaptor is fixed inside of the tubular control element and the seat ring is movably mounted on the spring seat adaptor via a ball and socket type joint. The movable seat ring is engaged by the spring and adapted to be self-aligned through three-dimensional displacement relative to the spring seat adaptor via the ball and socket joint.