A fluid control valve having extremely high responsiveness not only when a pressure of a working fluid of a first flow path is high but also when the pressure of the working fluid of the first flow path is low includes: a valve seat; a valve body contacting and separating from the valve seat; a first biasing member biasing the valve body in a valve closing direction; and a second biasing member having a spring force lower than that of the first biasing member, wherein the valve body is axially divided into a base portion biased by the first biasing member and an opening and closing portion contacting and separating from the valve seat, and the second biasing member is disposed so that the base portion and the opening and closing portion are axially separable from each other.

A cartridge for dynamic reduction of a pressure of a fluid entering a valve body includes a main body having a first inlet interface for receiving the fluid at a first pressure, a second outlet interface for sending to the valve body the fluid at a second pressure, a third control interface for receiving the liquid at a third outlet pressure from the valve body, a passage adapted to place in fluid communication the first interface and the second interface developing along a first direction, and an internal chamber traversed by the passage and developing in the main body along a second direction not parallel to the first direction. The valve body includes a shutter movably housed along the second direction in the internal chamber and separating the third interface from the passage. The shutter is active on the passage in order to obstruct it at least partially in a selective and variable manner at least between a minimum interference position and a maximum interference position with the passage. The position of the shutter is determined by the first inlet pressure and the third outlet pressure.

A pressure relief valve for reducing pressure arising in a cell-like cavity, such as a battery cell, including a cover which has a seal for sealing a housing opening up to a predetermined cell pressure and is provided with a holding device in order to hold said cover on the housing opening, the holding device having a spring clip which is attached to the lower face of the cover that faces the housing opening and has a plurality of radially outwardly directed spring tongues which, at the ends thereof, are provided with spring portions which, when the cover is pressed onto the housing opening, can be moved back resiliently in the radial direction through the opening edge and, after passing through the housing opening, snap back under a wall region around the opening edge, wherein a bearing device, which is separate from the cover prior to mounting and to which the spring clip is fixed by a support part, is connected to the cover on the lower face thereof that faces the housing opening, a connection adapter being connected to the center of the bearing device, wherein a central opening of the spring is placed on the connection adapter and wherein the support part is connected to the connection adapter, thus fixing the spring clip.

An emergency degassing apparatus is provided, comprising a base body, an emergency degassing valve having an emergency degassing opening and a pressure cap for closing the emergency degassing opening, and a pressure compensation element (DAE) having a first and a second pressure compensation valve.

A pressure equalization apparatus comprises a main element, a sealing device, and a connection device for connecting the main element and the sealing device. The sealing device sealingly bears against the main element when the pressure equalization apparatus is in a closed state and is fixed relative to the main element via the connection device. A fixing connection between the main element and the sealing device which is formed thereby can be released in order to unblock a fluid connection between the interior of the pressure equalization apparatus and surroundings of the pressure equalization apparatus. The connection device comprises a spring element, the spring force of which acts in particular in a direction extending crosswise to an opening direction of the pressure equalization apparatus.

A system for detecting safe operating conditions and maintained integrity in a Pressure Safety Valve (PSV) the valve comprising an inlet, an outlet, a valve disc controlling fluid flow between the inlet and outlet, a stem connected to the valve disc, a spring washer, and a spring in communication with the valve disc and the spring washer, a vibration sensor which detects vibration in the valve disc, an inlet pressure sensor which detects the static pressure in the inlet, a position sensor which detects the position of the valve disc transferred through the stem, a compression load cell sensor which detects the dynamic force applied on the valve spring washer by the spring, an outlet pressure sensor which detects the pressure in the outlet, a separate shock sensor adapted to determine if the PSV has popped and then activate a microcontroller.

Provided is a valve capable of reliably blocking a gap between a valve body and a valve seat at least in a valve closed state. A valve includes a valve seat and a valve body, wherein the valve body and the valve seat are apart from each other at a radial gap and are arranged to be relatively movable in a reciprocating manner and an elastically deformable annular sealing body extends from one of the valve body and the valve seat so as to seal the gap.

A flow plate assembly for installation in a housing defines a flow axis of a fluid therethrough and has a flow plate portion. The assembly includes a cap having a cap surface and a cap opening having a cap opening diameter. The assembly further includes a spring having at least one spring opening configured to allow the fluid to flow therethrough. The assembly further includes a flow plate having a flow plate surface and a flow plate central opening having a flow plate central opening diameter that is less than the cap opening diameter and at least one flow plate outer opening that is disposed radially outside of the cap opening such that the fluid flows through the at least one flow plate outer opening upon compression of the spring and movement of the flow plate surface away from the cap surface.

Valves for relieving pressure from high-pressure fluid systems have a valve fitting and a valve actuator. The pressure relief valve is normally shut and is adapted to open at a relief fluid pressure. It comprises a valve fitting and an actuator. The actuator has a valve stem, a spring, and an electromagnet. The stem is coupled to a valve body and mounted for linear reciprocation. The spring applies a mechanical force that biases the stem to place the valve in a normally shut state, but allows the valve to open at a first fluid pressure below the relief pressure. The electromagnet applies a magnetic force that, together with the mechanical force, holds the valve in an operationally shut state at a second fluid pressure above the relief pressure. The valve may be opened at fluid pressures above the first fluid pressure by de-energizing the electromagnet at the relief pressure.

A spring assembly for a spring-operated relief valve can include a first spring washer, a second spring washer, a plurality of springs arranged between the first spring washer and the second spring washer to be compressed by movement of the second spring washer toward the first spring washer, and a first spring guide secured to the first spring washer. The first spring guide to one of define a central guide opening that defines a first inner guide profile that receives one or more springs of the plurality of springs or define a first outer guide profile that is received within one or more springs of the plurality of springs. During compression of the plurality of springs, the first spring guide maintains radial alignment of the plurality of springs relative to the first and second spring washers.