PRESSURE LOADED SERVICE REGULATOR WITH PRESSURE BALANCED TRIM
摘要
A gas regulator includes an actuator, a regulator valve, and pressure loading device. The pressure loading device provides a pressure load to a surface of a diaphragm of the actuator to act against a downstream pressure being applied to the opposite surface of the diaphragm and being controlled by the regulator. As the downstream pressure varies and the diaphragm displaces to move a control element to regulate the downstream pressure, the pressure loading device maintains a specified load pressure. The regulator may further include a balanced trim applying a balancing force to offset a force of an upstream pressure on the control element.
申请公布号
EP2281225(A1)
申请公布日期
2011.02.09
申请号
EP20090733710
申请日期
2009.04.21
申请人
EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
发明人
HAWKINS, JAMES, CHESTER;ANDERSON, PAUL, RICHARD;MEVIUS, JASON, S.;FOUST, GREGORY, LAWRENCE