Abstract: Apparatus for regulating gas pressure suitable for use in systems and/or networks for transport and/or distribution of gas, the apparatus configured to be connected upstream with an inlet duct for the gas and downstream with an outlet duct, and includes: a main regulator including: an inlet area fluidically connectable with the inlet, an outlet area fluidically connectable with the outlet, a shutter which acts between the inlet area and the outlet area, means configured to push the shutter towards a closed position, a motorization chamber in which a movable element is housed, a pilot regulator including: an inlet which is fluidically connected with a first sub-chamber, to thus allow the passage of gas from the first sub-chamber towards an inlet of the pilot regulator, an outlet which is fluidically connected to said second sub-chamber, and at least one pilot valve.

Abstract: The invention relates to a gas pressure regulator having a valve, a delivery duct of low pressure gas (Pb), a regulation shutter for the gas delivery flow, a control head of the valve defining an upper chamber [(9)] and a lower chamber. A pilot valve controls the movement of the shutter. The pilot valve has a first chamber with an inlet way, a first outlet way communicating with said delivery duct and a second chamber in which there is the body of an interception shutter adapted to open or close the inlet way [(14)]. The first chamber has at least a second outlet way communicating with the lower chamber and the upper chamber and the inlet way are connected to each other through an auxiliary duct containing gas at an intermediate pressure (Pm) between high pressure (Pa) and low pressure (Pb).

Abstract: The invention relates to a gas pressure regulator (1) comprising: at least a valve (2), a delivery duct (4) of low pressure gas (Pb), a regulation shutter (5) for the gas delivery flow, a control head (8) of said valve (2) defining an upper chamber (9) and a lower chamber (10); a pilot valve (12) for controlling the movement of said shutter (5) in which there is a first chamber (13) with an inlet way (14), a first outlet way (18) communicating with said delivery duct (4) and a second chamber (16) in which there is the body of an interception shutter (17) adapted to open or close said inlet way (14). The invention is characterized in that said first chamber (13) has at least a second outlet way (11) communicating with said lower chamber (10) and said upper chamber (9) and said inlet way (14) are connected to each other through an auxiliary duct (15) containing gas at an intermediate pressure (Pm) between said high pressure (Pa) and said low pressure (Pb).