A hydrogen gas supply apparatus according to one aspect of the present invention includes a compressor configured to compress hydrogen gas and supply the hydrogen gas compressed to a pressure accumulator which accumulates the hydrogen gas, an adsorption column disposed between the discharge port of the compressor and the pressure accumulator, and configured to include an adsorbent for adsorbing impurities in the hydrogen gas discharged from the compressor, and a plurality of valves disposed at the gas inlet/outlet port side of the adsorption column, being at a discharge port side of the compressor, and configured to be able to seal the adsorption column, wherein the space in the adsorption column is sealed using the plurality of valves such that the inside of the adsorption column is maintained to have a high pressure by the hydrogen gas compressed in the case where the compressor is stopped.

A system and method of operation is described wherein a cryogenic liquid transport fluid is used as in a thermal cascade with at least one volatile gas. The volatile gas in the liquid state enables transport thereof. In operating this system, the liquid volatile gas is maintained at a temperature below its boiling point, below its flash point, but above its freezing point.

Protective devices for pressurized gas cylinders have a housing which is arranged around an inner cavity intended for receiving an extraction valve and which has access openings for the extraction connection and for further fittings. In order to counteract soiling or contamination of the extraction connection, the invention provides for an elastically deformable safety element to be fastened to the housing in the region of the access opening of the extraction connection, said element being able to be swung out from a closed position, in which the extraction connection is completely covered and/or enclosed by the safety element, into a position in which it frees the extraction connection.

A valve for pressurized fluid having a body housing a fluid circuit having an upstream end configured to be placed in communication with a reserve of pressurized fluid and a downstream end configured to be placed in communication with a user of fluid, the circuit having a collection of valve shutter(s) having at least one shutoff valve shutter allowing the circuit to be closed or opened, the valve having a member for manually controlling the collection of valve shutter(s), the control member being mounted with the ability to move on the body between a rest position in which the collection of valve shutter(s) is in a position in which the circuit is closed and an active position in which the control member actuates the collection of valve shutter(s) into a position in which the circuit is open with a first bore section.

A gas supply system includes a first tank, a first path into which a first gas generated by vaporization of a first low-temperature liquefied gas flows, a gas boosting mechanism being disposed in the first path, a second path that is a path configured to extract the first low-temperature liquefied gas from the first tank, a pump and a vaporization mechanism being disposed in the second path and a reliquefaction path that is a path configured to liquefy at least part of the first gas extracted from an upstream side of the gas boosting mechanism in the first path and to cause the liquefied first gas to flow into an upstream side of the pump in the second path, a cooling heat exchanger configured to cool the first gas by a second low-temperature liquefied gas or a second gas being disposed in the reliquefaction path.

The present invention primarily relates to a loading system (1) configured to transfer a cryogenic fluid (3) from a storage vessel (2) into a receiving vessel (4), the loading system (1) comprising at least one element (17) for circulating the cryogenic fluid (3) in the liquid state which connects the storage vessel (2) to the receiving vessel (4), a processing and/or consumption unit (26) of the cryogenic fluid (3) in the gaseous state originating at least from the receiving vessel (4) and a return line (28) of the cryogenic fluid in the gaseous state which connects the receiving vessel (4) with the processing and/or consumption unit (26), characterised in that the loading system (1) comprises at least one cooling unit (36) of the cryogenic fluid (3) circulating towards the receiving vessel (4) in the circulation element (17), the cold generated by the cooling unit (36) resulting from an evaporation of the cryogenic fluid (3) coming from the storage vessel (2).

A valve for pressurized fluid having a body housing a fluid circuit having an upstream end configured to be placed in communication with a reserve of pressurized fluid and a downstream end configured to be placed in communication with a user of fluid, the circuit including a collection of valve shutter(s) comprising at least one shutoff valve shutter allowing the circuit to be closed or opened, the valve including a mechanism for manually controlling the collection of valve shutter(s), the control mechanism being mounted with the ability to move on the body between a rest position in which the collection of valve shutter(s) is in a position in which the circuit is closed and an active position in which the control mechanism actuates the collection of valve shutter(s) into a position in which the circuit is open to a first bore section.

A valve for pressurized fluid, including a body having a front face and a rear face and housing an internal fluid circuit having an upstream end configured to be placed in communication with a reserve of pressurized fluid and a downstream end configured to be placed in communication with a user of fluid, the circuit including a collection of valve shutter(s) including at least one shutoff valve shutter for closing or opening the circuit, the valve comprising a member for manually controlling the collection of valve shutter(s).

A valve for pressurized fluid including a body housing a fluid circuit having an upstream end configured to be placed in communication with a reserve of pressurized fluid and a downstream end configured to be placed in communication with a user of fluid, the circuit including a collection of valve shutter(s) including at least one shutoff valve shutter allowing the circuit to be closed or opened, the valve including a member for manually controlling the collection of valve shutter(s).

A valve for pressurized fluid including a body having a front face and a rear face and housing an internal fluid circuit having an upstream end configured to be placed in communication with a reserve of pressurized fluid and a downstream end configured to be placed in communication with a user of fluid, the circuit including a collection of valve shutter(s) including at least one shutoff valve shutter allowing the circuit to be closed or opened, the valve including a control lever controlling the collection of valve shutter(s), an end for grasping, the control lever being mounted with the ability to rotate on the valve between a rest position and an active position in which the control lever is away from the body of the valve and actuates the collection of valve shutter(s) into a position in which the circuit is open with a first bore section.