A relief valve device having a spring, a valve bonnet, a valve stem, a disc holder, a valve disc, a huddling chamber, a blowdown ring, and a nozzle. In the valve device, the valve disc is positioned above the nozzle; the spring is disposed in the valve bonnet; the spring surrounds the valve stem such that a longitudinal axis of the spring and a longitudinal axis of the valve stem are coaxial; the disc holder surrounds an outer periphery of the valve disc and is adjacent and in direct contact with a surface of the valve disc around an entire perimeter of the valve disc; the blowdown ring is disposed at a top section of the nozzle; a bottom section of the nozzle is connected to a bottom surface of a valve body and the top section of the nozzle is connected to the valve disc; and the disc holder is filled with oil.

The disclosure relates to a valve assembly, comprising a valve body, in which a fluid channel is formed that connects a fluid inlet to a fluid outlet, wherein a preload force is applied to a closing body, which is movably mounted in the fluid channel, in the direction of a valve seat formed in the valve body, a fluid force acting on the closing body against the preload force in order to open the valve seat. The closing body is guided axially and/or radially by at least one guide ball, the guide ball being arranged between the closing body and a lateral boundary of the fluid channel.

A traveling relief valve for down-hole use in a well. In one embodiment, the traveling relief valve comprises a seat, a screw, a seal, a carrier, a spring, and a ported tube, where the traveling relief valve is configured to include a first flow interface between the seat and the carrier for flow when the well is producing, and a second flow interface between the seal and the carrier for back-flow in the well.

A relief valve device having a spring, a valve bonnet, a valve stem, a disc holder, a valve disc, a huddling chamber, a blowdown ring, and a nozzle. In the valve device, the valve disc is positioned above the nozzle; the spring is disposed in the valve bonnet; the spring surrounds the valve stem such that a longitudinal axis of the spring and a longitudinal axis of the valve stem are coaxial; the disc holder surrounds an outer periphery of the valve disc and is adjacent and in direct contact with a surface of the valve disc around an entire perimeter of the valve disc; the blowdown ring is disposed at a top section of the nozzle; a bottom section of the nozzle is connected to a bottom surface of a valve body and the top section of the nozzle is connected to the valve disc; and the disc holder is filled with oil.

A sanitary insertion unit (1), including an insertion housing (6), in which insertion housing a valve having a valve piston (10) is provided, which valve piston is slidably guided in the insertion housing and can be moved from a resting position under the pressure of the inflowing water against the restoring force of at least one restoring element (11). The restoring unit has at least one movement damper (12, 13), which damps or brakes the movement of the valve piston from the resting position to the open position.

The invention relates to a valve. A valve seat (2) encloses a fluid passage (20) for passage of a fluid from a fluid chamber (3). A holding element (4) exerts a holding force on a valve body (1), the holding force acting in a direction towards a valve seat (2). In the event that the fluid acts on an effective surface (10) of the valve body (1) with a force or a pressure above a limit value, the valve body (1) moves away from the valve seat (2). In the event that the fluid acts on an effective surface (40) of the holding element (4) with a force or a pressure above a limit value, the holding force acting on the valve body (1) decreases. In doing so, the fluid acts on the holding element (4) more strongly and/or earlier than on the valve body (1).

A fuel pressure regulator includes a fuel inlet; a fuel outlet; a seating surface; and a valve member assembly. The valve member assembly includes a poppet and also includes a sealing member which is made of an elastomer material and which is annular in shape and including a sealing member surface. The sealing member is supported by the poppet. The valve member assembly is moveable between 1) a closed position in which the sealing member surface engages the seating surface, thereby preventing fuel flow from the fuel inlet to the fuel outlet and 2) an open position in which the sealing member surface is spaced apart from the seating surface, thereby allowing fuel flow from the fuel inlet to the fuel outlet.

A valve of the present disclosure includes a valve seat formed with a valve hole; a spherical valve body; and a pressing member that presses the valve body toward the valve hole, the valve hole being closed by the valve body pressed by the pressing member; where the pressing member includes a guiding part that, when a force opposing the urging force acts on the valve body by greater than or equal to a prescribed value, separates the valve body away from the valve seat while guiding and relatively moving the valve body in a predetermined one direction.

A traveling relief valve for down-hole use in a well. In one embodiment, the traveling relief valve comprises a seat, a screw, a seal, a carrier, a spring, and a ported tube, where the traveling relief valve is configured to include a first flow interface between the seat and the carrier for flow when the well is producing, and a second flow interface between the seal and the carrier for back-flow in the well.

A silencing choke for a solenoid valve can include a base and a stem configured to be coupled to an armature and can be configured for at least partially reducing or eliminating noise caused by armature bounce. A choke can be configured for limiting maximum flow through an orifice during at least a portion of a valve transition, which can include creating a state of orifice limited flow during the occurrence of armature bounce. A choke can be configured for at least partially reducing cross flow among ports and for limiting a maximum flow rate through at least one flow path of a valve.