An apparatus (100) for conveying leaked gas streams (1.sub.1,1.sub.2,1.sub.3 . . . 1.sub.n) leaking at a substantially atmospheric pressure from an industrial plant to a reception body (9) that is pressurised at a predetermined reception pressure (P.sub.r), comprises a collector container (10) of said streams, pneumatically connected with a leaked gas-capturing means, a compressor (20) having a suction mouth (25) pneumatically connected to the collector container (10) and a delivery mouth (26) pneumatically connected to the reception body (9) and to the collector container (10) through a discharge pipe (6) and a recirculating duct (4), respectively. In order to adjust the compressor suction pressure (Ps) at a value below atmospheric pressure (P.sub.atm) and above a minimum value of 200100 Pa, the apparatus (100) comprises a control unit (40) in which a control valve (41) is arranged along the recirculation duct (4) and a pressure sensor/transducer (47) is arranged at suction side of compressor (20), the sensor/transducer (47) configured to generate a pressure signal (46) corresponding to the detected suction pressure (P.sub.s), preferably a differential pressure signal (46) between the atmospheric pressure and the compressor pressure suction. Moreover, a pressure controller (45) is configured to receive the suction pressure signal (46), to generate an open/close signal (43) responsive to pressure signal 46, and to transfer the open/close signal (43) to the control valve (41) so as to change its opening according to the detected suction pressure.

The invention relates to a pneumatic emergency shutdown system for a liquefied gas supply arrangement in which liquefied gas is supplied between a first tank and a second tank. The pneumatic emergency shutdown system comprises a pneumatic emergency shutdown circuit comprising pressure medium and provided in connection with the first tank and a pneumatic emergency shutdown link provided to the pneumatic emergency shutdown circuit, said a pneumatic emergency shutdown link connecting the pneumatic emergency shutdown circuit to a pneumatic controlling system of the second tank.

A safety cap for a pressurised gas storage vessel is disclosed comprising a valve that is movable between: (i) a first position in which an entrance port and anti-recoil apertures are in fluid communication such that gas is able to flow out of the safety cap through the anti-recoil apertures; and (ii) a second position in which the gas is unable to exit the safety cap through the anti-recoil apertures and in which the entrance port is in fluid communication with an exit port such that gas is able to flow from the entrance port, through the exit port and out of the safety cap.

A fueling station dispenser for distributing a combustible gas that is lighter than air, and that includes electrical and gas handling sections in the same frame. A vapor barrier in the cabinet blocks fugitive gas that may be present in the gas handling section from entering the electrical section. According to most applicable codes, by isolating combustible gas from the electrical section gives it a Class I, Division 2 designation. Which eliminates the need to seal or air purge the electronics section as this designation allows for electronics that under normal intended operating conditions do not generate an arc with sufficient energy to initiate combustion.

A system to maintain an inert ullage in a hydrocarbon tank. The system provides for outgassing/venting of ullage gases when a high pressure event is found within the tank. Further, when a low pressure event occurs, during fuel discharge or based on ambient conditions, a source of inert gas, such as nitrogen) supplies gas on-demand to the hydrocarbon tank via a pressure regulator (preferably along the venting system) to maintain both the pressure and inerting of the ullage. A method for maintaining the inert ullage is also provided, whereby a low pressure event triggers a supply of inert gas into the tank.

A tank for flammable liquids and gases for use as a fuel reservoir of a vehicle, contains a tank container, which is equipped with a plurality of thermal pressure relief valves in the event of potential fire. The tank container is equipped on its outer side with a fire protection lining which is adapted in terms of its contour to an enveloping surface of the tank container.

In a high pressure gas container with a container body having a fusible plug valve and a boss portion arranged at a position different from the fusible plug valve, each of the fusible plug valve and the boss portion has a higher heat conductivity than the container body, the fusible plug valve and the boss portion are connected by a heat conductor and the heat conductor is accommodated in the container body.

To provide a safety joint that can immediately shut off a hydrogen gas flow path at the initial stage when a plug, which is a nozzle side member, comes out of a socket, which is a filling apparatus side member, to prevent release of outgas. A safety joint including: a cylindrical nozzle side member with a flow path formed inside, a shutoff valve of the nozzle side member opens when the nozzle side member is connected to a filling apparatus side member; and the filling apparatus side member with a cylindrical shape and a flow path formed inside, the filling apparatus side member can be connected to the nozzle side member.

An attachment for a hydrogen refueling port of a vehicle, the port designed according to the known SAE J2799 international vehicle standard. The attachment is designed to be incompatible with the supply of hydrogen to said vehicle. The attachment includes a nozzle for being connectable to the refueling port and a protruding handle, and at least one of the following features: i) a magnetic element; and ii) a locking device for reversibly locking onto a portion of the refueling port.

To provide a safety joint that can immediately shut off a hydrogen gas flow path at the initial stage when a plug, which is a nozzle side member, comes out of a socket, which is a filling apparatus side member, to prevent release of outgas. A safety joint including: a cylindrical nozzle side member with a flow path formed inside, a shutoff valve of the nozzle side member opens when the nozzle side member is connected to a filling apparatus side member; and the filling apparatus side member with a cylindrical shape and a flow path formed inside, the filling apparatus side member can be connected to the nozzle side member.