Domestic combustible gas supply pressure regulator for methane or gas propane liquid has removable spring compression element that may interact with lid for acting on standardization spring to maintain it in first compression state

摘要

A spring compression element (20) may interact with a lid (12), for acting on a standardization spring to maintain it in a first compression state to define a first nominal pressure of the regulator. Removal of the element (20) looses the standardization spring for setting its second compression state defining a second nominal pressure of the regulator.