Liquid pressure regulator with a spring loaded membrane has a progressive pressure relief insert and an asymmetric two pressure levels setter

摘要

The regulator comprises an enveloping body (1) with a closure diaphragm (7) on which a spring (5) acts, said body comprising an entrance (2) for the pressure liquid and an exit (3) toward the pressure liquid application apparatus, characterised in that, at the bottom, the body comprises a closure plug (8) with a graduable axial position for achieving a depressurisation position or free passage position, and, at the top, the compression spring on the diaphragm abuts against a flange (6) of an asymmetrical intermediate body (4), of which the inversion brings about the two different preloading positions of the spring providing two regulator adjustment pressures.