Abstract: A gas safety valve (1) capable of avoiding unwanted or inadvertent opening and possible closing, with maximum safety and allowing an opening, and possible closing, of these safety valves only through a double intentional and reliable maneuver includes a knob (22) for controlling the shutter (7) of the valve (1), during the opening and closing rotation movement, stop projections (32, 33) of the valve (1) slide on sliding segments (37, 38; 37B, 38B) provided in the knob (22) coplanar or flat-like inclined and associated to relative positioning projections (41, 42), a spring (28) housed in a chamber between a threaded end (19) of a screw (11), and a chamber (23) of the knob (22).

Abstract: Gas safety ball valves (1) in which the opening manoeuvre occurs through a double lifting manoeuvre in the axial direction of the knob (22) for controlling the shutter (7) of the valve (1) and a subsequent rotation of the knob (22) by 90° to open, the closure also possibly occurring directly through simple closure rotation or by previously lifting of the knob (22), wherein during the opening and closing rotation movement the stop projections (32, 33) of the valve (1) slide on sliding segments (37, 38; 37B, 38B) provided in the knob (22) coplanar or flat-like inclined and associated to relative positioning projections (41, 42). A spring (28) is housed in a chamber between the threaded end (19) of the screw (11) and a chamber (23) of the knob (22) and positioned by way of the same screw (30) fixed in the screw (11).

Abstract: Herein proposed is a system (1) for producing energy from hydrogen, in particular for residential buildings, for example heat energy, including a catalytic burner (4) with hydrogen supply, with water/water heat exchanger power supplying a thermal unit, for example a system for heating and/or producing domestic water for a residential building or the like, such system (1) further including a fuel cell (5) which can also be supplied with hydrogen for producing electrical power, and having an associated cooling device (13; 27) and an associated inverter (13) or DC/DC unit (25) for producing alternating or direct current, wherein the air or water for cooling the fuel cell (5) during operation are used for heating within the system (1) increasing performance thereof. Performance is increased further by associating a heat pump to the system (1).

Abstract: A hydrogen generator system (1) for a hydrogen powered unit or user (3), such as for example a catalytic hydrogen burner or a fuel cell, includes an electrolyzer (2) for the electrolysis of distilled water, producing hydrogen and oxygen, provided with a demineralizer device (5) and an A/C transformer/converter unit (7) for supplying electrical power for the electrolysis process and, on the outlet side, a device for purifying the hydrogen produced, such system (1) further includes: a device (10) for recovering the heat generated by the electrolysis process and/or a device (17) for storing the hydrogen produced, such hydrogen generator system (1) is accommodated in a casing (20) which has—externally—inlet and outlet connection fittings.

Abstract: A hydrogen generator system includes an electrolyzer for executing a water electrolysis process and associated devices for operation thereof to produce hydrogen and oxygen, and functionally interconnected to each other: 1) a device for recovering heat generated by the electrolysis and cooling of the electrolyzer, 2) a device for storing the generated hydrogen, 3) a burner for generating heat, and 4) a fuel cell for producing electrical energy. The burner and the fuel cell are connected in parallel and suppliable with the hydrogen produced directly by the electrolyzer and/or with the hydrogen drawn from the storage device, as well as respective circuit and control and adjustment components. The entire hydrogen generator system is accommodated in a casing, which has externally a plurality of inlet connection fittings for the water and electrical power supply system for supplying the electrolyzer and outlet connection fittings for the various services and products supplied.

Abstract: A burner (20) for the combustion of hydrogen on a catalyst, has a body (21), a first self-ignition catalyst (23) and a subsequent group of oxidation catalysts (26), as well as a heat exchanger (35) heated by the burnt gases, wherein in the burner (20) the heat exchanger (35) is obtained as a common heat exchanger and it is arranged outside the body (21) of the burner (20) accommodating the catalysts (23, 26). A head (22) accommodating the self-ignition catalyst (23) may be separated by a body (40) accommodating the oxidation catalysts (26). A second heat exchanger (45), passed through by cold water, allows production of high purity distilled water. In the proposed boiler (41) a first part (42) accommodates the burner modules (20) and another part (43) accommodates the common heat exchanger (35) and the possible additional heat exchanger (45) for producing distilled water.

Abstract: A quick installation valve including a valve body consisting in one or more parts and in which a shutter is housed which is rotatable by a lever-like control element or similar, and is provided with an inlet end and an outlet end, wherein at least one of the valve ends is designed as an integrated quick coupling body and houses a quick coupling assembly for housing and tightly fastening a metal pipe or a plastic hose.