Study on Bellows-balance Self-operated Pressure Regulator

Structure and operation principle of the bellows-balance self-operated pressure regulator are described in the paper.Through comparison of the bellows-balance self-operated pressure regulator with the self-operated pressure regulator without balance element, the characteristic and advantage of the bellows-balance self-operated pressure regulator is summarized, which can provide a reference for selecting the self-operated pressure regulators.