A valve assembly includes a valve body defining an interior cavity extending to a bonnet portion, a valve stem including a valve element retained in the interior cavity of the valve body and an end portion extending beyond the bonnet portion, the valve stem being rotatable between a first limit position and a second limit position, and a spring return handle arrangement. The spring return handle arrangement includes a user graspable valve handle, a stem adapter, and a return spring. The stem adapter includes a first end portion secured to the valve stem and a second end portion secured to the valve handle. The return spring includes a first end portion secured to the valve body, an intermediate spring loaded portion, and a second end portion secured to the stem adapter to apply a torsional load to the stem adapter for returning the valve stem to the first rotational limit position.

A spring-loaded ball valve includes a spring, a first pin, a second pin, and a handle. The spring is configured to apply pressure to the first pin and second pin when the ball valve is in both the fully open and fully closed positions. The spring applies maximum torque when the ball valve is in the fully open or fully closed position to ensure the valve remains in the fully open or fully closed position.

A spring-loaded ball valve includes a spring, a first pin, a second pin, and a handle. The spring is configured to apply pressure to the first pin and second pin when the ball valve is in both the fully open and fully closed positions. The spring applies maximum torque when the ball valve is in the fully open or fully closed position to ensure the valve remains in the fully open or fully closed position.

In order to provide a pressure equalization apparatus (10) by means of which a pressure equalization can be brought about in the event of an overpressure—in particular, in an electrochemical system—and which is as simple as possible to produce, according to the invention, the pressure equalization apparatus comprises a main element (110), a sealing device (112), and a connection device (114) for connecting the main element and the sealing device, wherein 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 by means of the connection device, and wherein 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, and wherein the connection device comprises a spring element (150), the spring force of which acts in particular in a direction extending crosswise to an opening direction of the pressure equalization apparatus.

A fuel pressure regulator includes a housing defining a fuel inlet and a fuel outlet; a valve seat located between the fuel inlet and the fuel outlet, the valve seat being centered about a valve seat axis; a valve member centered about a valve member axis, the valve member being moveable between 1) a closed position where the valve member engages the valve seat to prevent fuel flow from the fuel inlet to the fuel outlet and 2) an open position where the valve member is disengaged from the valve seat to permit fuel flow from the fuel inlet to the fuel outlet; and a grounding member grounded to the housing which engages the valve member to cause the valve member axis to tip relative to the valve seat axis when the valve member moves from the closed position to the open position.

A valve body of an expansion valve for an air-conditioning system, a battery cooler, and/or an oil cooler of a motor vehicle may comprise a valve needle and a spring. The valve needle and the spring may be integrally provided as a single component.

A valve assembly includes a valve body defining an interior cavity extending to a bonnet portion, a valve stem including a valve element retained in the interior cavity of the valve body and an end portion extending beyond the bonnet portion, the valve stem being rotatable between a first limit position and a second limit position, and a spring return handle arrangement. The spring return handle arrangement includes a user graspable valve handle, a stem adapter, and a return spring. The stem adapter includes a first end portion secured to the valve stem and a second end portion secured to the valve handle. The return spring includes a first end portion secured to the valve body, an intermediate spring loaded portion, and a second end portion secured to the stem adapter to apply a torsional load to the stem adapter for returning the valve stem to the first rotational limit position.

A valve assembly (300) comprising a valve body (302) and a plunger (304). The plunger (304) is movable through an opening (314) in the valve body from (i) a transit seal position in which an axial bias spring (316) is relatively uncompressed, to (ii) an operating configuration in which the plunger (304) is movable between an operational open position and an operational closed position by or against the axial bias spring (316). In addition, the valve assembly (300) is configured to provide a mechanical restriction to the plunger (304) moving from the transit seal position to the operating configuration.

A valve member for a spring-loaded valve assembly includes a top portion having a spring retaining recess, the spring retaining recess extending into the top portion to form a void space, the void space to receive at least one coil of a spring, the spring retaining recess having a recess diameter that is smaller than a top portion diameter, wherein the recess diameter is larger than a rest diameter of a spring base including the coil, the spring retaining recess blocking expansion of the at least one coil when the spring is compressed. The valve member also includes a bottom portion coupled to the top portion. The valve member further includes a sealing element positioned axially below a shoulder of the top portion and legs coupled to the bottom portion.

A valve assembly includes a valve body defining an interior cavity extending to a bonnet portion, a valve stem including a valve element retained in the interior cavity of the valve body and an end portion extending beyond the bonnet portion, the valve stem being rotatable between first and second limit positions, and a spring return handle arrangement. The spring return handle arrangement includes a user graspable valve handle, a stem adapter, and a return spring. The stem adapter includes a first end portion secured to the valve stem and a second end portion secured to the valve handle. The return spring includes a first end portion secured to the valve body, an intermediate spring loaded portion, and a second end portion secured to the stem adapter to apply a torsional load to the stem adapter for returning the valve stem to the first rotational limit position.