The disclosure relates to a valve having an inlet device, which has at least one inlet opening and at least one outlet opening, and having a closing device for opening and closing the at least one inlet opening and/or outlet opening. The valve has an actuation device for actuating the closing device. The actuation device is guided in an axially moveable manner in a first direction in a housing. The valve further has a coupling element, which connects the actuation device and the closing device to one another such that an axial movement of the actuation device causes a movement of the closing device in a second direction that differs from the first direction.

Pistons and related methods may be configured to separate fluids and to at least partially prohibit one fluid from traveling to one side of the piston from another side of the piston. Pressure exchange devices and systems may include such pistons.

Examples disclosed herein relate to conduits, devices, systems and methods, which may include a hollow element including an inner surface and an outer surface which allows for a passage of one or more of one or more fluid elements and one or more gaseous elements, a constraining element with one or more openings and one or more non-open elements, one or more blocking elements configured to stop the passage of the at least one of the one or more fluid elements and the one or more gaseous elements when the one or more blocking elements are in a first position relative to the one or more openings, and a movement device configured to move the one or more blocking elements to a second position relative to the one or more openings which allows for the passage of the one or more fluid elements and the one gaseous elements through the one or more openings in the constraining element.

A depressurisation valve for a cooling system including a main chamber having a main valve, a pilot line having a secondary valve and a blowdown line; the main valve being located to seal a path of the coolant system of the nuclear reactor. The main chamber is connected to the cooling circuit via the pilot line allowing coolant to enter the main chamber, and the blowdown line allows coolant to escape from the main chamber, the pilot line having a lower fluid resistance than the blowdown line. The pressure of coolant in the main chamber maintains the main valve in a closed position, and under elevated temperature and/or pressure conditions fluid is prevented from entering the main chamber via a closure of the secondary valve on the pilot line and reduce the pressure from the valve, moving it to its open position.

An emergency shut-off device comprises an activation means configured to generate an activation force in response to detecting a seismic event, and a magnetic driver having a hollow guide tube with two magnets affixed at a selected position on opposite sides along a length of the guide tube with like poles facing each other and a drive piston movable inside the guide tube. The driver piston is coupled to a third magnet and has a first end for receiving an activation force to move the third magnet crossing a magnetic repulse shift line formed by the two magnets, and a second end for applying the drive force to an output system to effectuate a shut-off of a fluid line.

A device for and method of releasing pressure from a pressure cooker using an arrangement of magnets that influence the opening and closing characteristics of a pressure relieve device used in a pressure cooker. The device configured using magnets which act to repel each other causing the pressure release valve to operating more quickly than valves relying on gravity to open.

This invention relates generally to the dispensing of a fluid. More specifically, the invention relates to an apparatus and method for remotely controlling the flow of an effluent fluid stream from a dispensing hose of a fluid dispenser. An actuator controls at least one valve assembly of the fluid dispenser and comprises a generator located remotely of the at least one valve assembly, for generating a low-pressure signal, and at least one receiver in fluid communication with the generator for receiving the low pressure signal of each receiver operably associated with each valve assembly. The actuator also facilitates the simultaneous, sequential and alternate control of the at least one valve assembly.

An actuator for actuating a hydraulic valve, the actuator including a winding body configured to receive a magnet coil, wherein the winding body envelops an armature chamber; a pole tube which is at least partially insertable into the armature chamber; and a cover element including a contact arrangement for controlling the actuator, wherein the cover element is interlockable at a face of the winding body to close the armature chamber. A method for producing the actuator according to claim 1, the method including providing the winding body; introducing a pole tube into the armature chamber; and closing the armature chamber by interlocking the cover element with the winding body.

A double check valve (100) includes a sleeve (10) with a first inlet opening (11), a second inlet opening (12), an outlet opening (13), and a guide piece (20). The guide piece (20) movable along the longitudinal axis (L) within the sleeve (10), by loading with a fluid-induced pressure, between a first blocking position (S1) and a second blocking position (S2) spaced therefrom, wherein each of the inlet openings (11, 12) is closed at least partly fluid-tightly by the guide piece (20) in one of the blocking positions (S1, S2). The double check valve (100) has a permanent magnet (30, 31, 32, 33), and the guide piece (20) and the permanent magnet (30, 31, 32, 33) are configured to magnetically deflect the guide piece (20) from an intermediate position (Z) arranged between the blocking positions (S1, S2) and/or from one of the two blocking positions (S1, S2).

A depressurisation valve for a cooling system including a main chamber having a main valve, a pilot line having a secondary valve and a blowdown line; the main valve being located to seal a path of the coolant system of the nuclear reactor. The main chamber is connected to the cooling circuit via the pilot line allowing coolant to enter the main chamber, and the blowdown line allows coolant to escape from the main chamber, the pilot line having a lower fluid resistance than the blowdown line. The pressure of coolant in the main chamber maintains the main valve in a closed position, and under elevated temperature and/or pressure conditions fluid is prevented from entering the main chamber via a closure of the secondary valve on the pilot line and reduce the pressure from the valve, moving it to its open position.