AUTOMATIC CHANGEOVER REGULATOR

摘要

A pressure regulator ( 10 ) includes a changeover regulator ( 12 ) with plural inlets ( 16, 18 ). Inside the regulator, each inlet has a closure member ( 62 ) connected to a diaphragm ( 100 ) for control of the closure members ( 62 ) in response to pressure inside the regulator ( 12 ). Biasing members ( 56 ) are stabilized in position by either an apertured plate ( 102 ), a cup ( 104 ) or both. A changeover handle ( 19 ) depresses one spring ( 56 ) or the other to bias one closure member ( 62 ) open to admit gas from the associated inlet ( 16 or 18 ).