To provide a safety joint capable of preventing moment generated by swinging of a filling hose and surely separating the safety joint to a hydrogen filling apparatus side member and a vehicle side member when a tensile force more or equal to a predetermined value is applied to the filling hose. The safety joint 100 according to the present invention includes a plug (10: vehicle side member) with a cylindrical shape in which a passage (1A: in-plug passage) is formed, a socket (20) in which a passage (21A: in-socket passage) continuing to the passage (1A) in the plug (10) is formed, and a shut off valve mounted on the passage (21A: in-socket passage) in the socket (20), the shut off valve opening when the plug (10) being inserted into the socket (20) and closing when the plug (10) being disconnected therefrom, wherein central axes of the passages of the plug and the socket do not form a straight line (but those are orthogonal with each other for instance), a filling hose (61) is connected to the plug (10), and a hose guide (70, 70A) for limiting movement of the filling hose (61) at a position separated from the plug (10).

A system determines that a fuel dispensing operation may be anomalous. In response, the system accesses fuel inventory data that indicates fuel levels in a fuel tank during a time period. The system determines a measure amount of fuel that left the fuel tank based on the fuel inventory data. The system determines a calculated amount of dispensed fuel associated with one or more fuel dispensing operations during the time period. The system compares the measured amount of fuel that left the fuel tank with the calculated amount of dispensed fuel. The system determines that the measured amount of fuel that left the fuel tank is more than the calculated amount of dispensed fuel. In response, the system concludes that at least one of the fuel dispensing operations is anomalous and causes the fuel dispensing terminal to stop dispensing fuel.

A system and related method of filling tanks is provided so that tanks do not attain an overfill condition and/or so the tanks are filled to a maximum specified capacity. The system includes an adjustable float switch having a float configured to float in liquid that is filled into a trailer tanker, a mix tank, a frac tank, a storage tank and a variety of other tanks. The float can be set so that when the liquid attains a maximum level and associated volume, the float switch opens so that pressurized air can be communicated from it to a pneumatically actuated tanker valve disposed in a supply line. This shuts off the flow of liquid through the supply line and into the tank. The system can be operable in a various modes, such as a filling mode, a filled mode, a manual emergency shutoff mode and/or a manual reset mode.

Fluid delivery vehicles, such as water trucks, and fluid receiving units for use at well sites, storage facilities, treatment facilities, rail and barge terminals are disclosed. The fluid delivery vehicle has primary fluid discharge assembly downwardly extending from a tank on the fluid delivery vehicle for discharge of fluid into a fluid containment unit configured to contain a larger volume of fluid than the tank arranged below the fluid delivery vehicle.

A fluid delivery system includes a distribution station moveable between a first location and a second location, a pump on the distribution station, at least one manifold on the distribution station and fluidly connected with the pump, a plurality of hoses connected with the at least one manifold, each of the hoses including a tube and a protective sleeve that circumscribes the tube, a plurality of valves on the distribution station, each of the valves situated between the at least one manifold and a respective different one of the hoses, a plurality of fluid level sensors, each of the fluid level sensors being associated a respective different one of the hoses, and a plurality of sensor communication lines. Each of the sensor communication lines is connected or connectable with a respective different one of the fluid level sensors. Each of the sensor communication lines is routed with a respective different one of the hoses. Each of the sensor communication lines is secured to the tube of one of the hoses by the protective sleeve.

Fluid delivery vehicles, such as water trucks, and fluid receiving units for use at well sites, storage facilities, treatment facilities, rail and barge terminals are disclosed. The fluid delivery vehicle has primary fluid discharge assembly downwardly extending from a tank on the fluid delivery vehicle for discharge of fluid into a fluid containment unit configured to contain a larger volume of fluid than the tank arranged below the fluid delivery vehicle.

An electromechanically operated fuel nozzle having continuously adjustable flow rate settings between a closed position and maximum flow. The fuel nozzle includes a fuel dispensing pipe for dispensing fuel; an electromechanical valve device to control a flow of fuel in the fuel dispensing pipe, comprising an inlet pipe and an outlet pipe. The electromechanical valve device comprises at least one continuously variable flow electromechanical valve to control the flow of fuel; an electronic board for operating the at least one continuously variable flow electromechanical valve; and electric accumulator means for electrically powering the at least one variable flow electromechanical valve and the electronic board such that the predetermined portions provide the particular one of the flow rate settings. The electromechanical valve preferably comprises a servomotor controlled ball valve.

The invention relates to a breakaway coupling for a liquid line comprising a first and a second coupling part (3, 4) which each have a liquid connection and which can be separated by a defined force in the axial direction of the coupling and/or a tilting moment acting transversally to the axial direction. According to the invention, an antitwist device (12) is provided which prevents the first and second coupling part (4, 3) from twisting relative to one another during the operation of the coupling.

An object is to provide an emergency detachment device of a fluid handling device, the emergency detachment device having exceptional heat insulation performance and making it possible to handle extremely-low-temperature fluids such as liquid hydrogen. A first coupler 2 and a second coupler 3 are provided with a vacuum section 10 between an inner pipe section 5 and an outer pipe section 6, and are provided with two valves 1 in series. A remaining-fluid-transferring mechanism is provided such that, after second valves 1B provided further inward enter a closed-valve state during emergency detachment, residual fluid that remains closer to the first valves 1A than the second valves 1B is transferred into the inner pipes sections 5 provided further inward of the second valves 1B. Once emergency detachment is in a completed state, heat insulation sections 9 are formed in the space between the first valve 1A and the second valve 1B in each of the first coupler 2 and the second coupler 3, and heat insulation performance is improved by the heat insulation sections 9 and the vacuum sections 10.

A multiply-redundant system that protects fueling of rockets, aircraft and other vehicles using Liquefied Natural Gas (LNG) along with an oxidizer such as Liquefied Oxygen. One or more sensors in combination with one or more optional microswitches combine to detect any leaks, fire or explosion hazards quickly locking out further fueling. For different levels of safety, different combinations of sensors can be used.