Disclosed is a gas discharge apparatus for liquefied hydrogen storage tanks, the gas discharge apparatus including a receptacle mounted to a liquefied hydrogen storage tank, the receptacle having a stationary valve configured to be opened by external force mounted therein, a multistage opening and closing device coupled to the receptacle such that the position of the multistage opening and closing device is adjustable, the multistage opening and closing device being configured to be opened by reaction force transmitted from the receptacle when moved relative to the receptacle, the multistage opening and closing device having a sliding valve configured to push open the stationary valve in the state in which the multistage opening and closing device is open, and a manipulation unit configured to move the multistage opening and closing device relative to the receptacle such that the sliding valve and the stationary valve are sequentially opened.

This disclosure relates to a valve comprising a housing, an actuating shaft and a plurality of groups of valve body elements. The plurality of groups of valve body elements are disposed in the housing and capable of rotating in the housing. The actuating shaft is configured to selectively actuate at least one group of valve body elements in the plurality of groups of valve body elements to rotate. The valve is provided with a plurality of fluid passages therein, and the actuated at least one group of valve body elements can connect or disconnect at least one of the plurality of fluid passages. The valve provided by the present disclosure can control and switch more fluid passages when an output power of an actuating device is limited.

The present invention relates to a valve system, comprising a first valve and a second valve, wherein both valves each have a housing with a plurality of housing openings, and a valve body arranged rotatably in the housing with at least one connection channel for providing a fluid connection of at least two of the housing openings,

characterized in that
the valve body of the first valve and the valve body of the second valve are mechanically coupled with each other by means of a coupling device of the valve system, wherein the coupling device is designed in such a way that the valve bodies can be rotated jointly by means of the coupling device when the valve system is in a first operating state and rotated independently of each other by means of the coupling device when the valve system is in a second operating state.

A ball valve assembly includes a ball configured to rotate between an open position and a closed position. The ball valve assembly also includes a cradle having a ball-facing surface. The ball-facing surface faces the ball and is positioned at an end of a fluid passage through the cradle. In addition, the cradle is configured to rotatably support the ball to enable the ball to rotate between the open position and the closed position, and the cradle is configured to block movement of the ball toward the ball-facing surface to establish a separation distance between the ball and the ball-facing surface.

A control valve for a gas turbine engine air starter. The control valve includes a spherical or ball valve element rotatable between a closed position and an open position to connect an internal flow passage to the air starter. A series of camming elements interconnecting a piston and a valve stem for the spherical valve element convert linear displacement of the piston into rotational movement of the valve for rapid opening.

The invention relates to a drainage connector (1) having a cup-shaped housing (2) which comprises a housing base (3) and a housing wall (4). A connection geometry (5) is arranged on the outside on the housing wall (4) for inserting into a container opening, wherein an inlet pipe (9) of an inlet side (7) is guided to an outlet side (8) through the housing base (3) and an annular collecting chamber (10) is formed between the inlet pipe (9) and the housing wall (4). In order to discharge denser fluid which can accumulate in the collecting chamber, the housing (2) has a discharge channel (11), which leads from the collecting chamber (10) to the outlet side (8) and can be closed from the outlet side (8). The drainage connector is intended to be producible in a cost-effective manner at low cost and to have a low mass. For this purpose, the inlet pipe (9) on the outlet side (8) merges into an outlet pipe (13) which has a closing element (16) that can be moved between an open position and a closed position, wherein the housing (2) comprising the connection geometry (5), the inlet pipe (9) and the outlet pipe (13) is formed from plastic as a single piece.

A system including a stem guide system, including a stem guide, and a sleeve coupled to the stem guide, wherein the sleeve is configured to rest within a valve stem groove of a valve stem.

A valve assembly used in a manifold system for processing fluid samples includes a body, a valve member, and a coupling assembly. The body defines a fluid passage and a valve passage in communication with the fluid passage and receiving at least a portion of the valve member therein. The valve member is selectively movable over a range of travel between an open position, in which fluid can flow through the fluid passage, and a closed position, in which the valve member occludes the fluid passage. The coupling assembly includes a coupling member and a retention lug. The retention lug is connected to one of the body and the coupling member. The other of the body and the coupling member defines a lug raceway configured to removably receive the retention lug therein to removably mount the coupling member to the body with the valve member being movably retained therebetween.

A rotational valve includes a valve closure element, a shaft, at least one detection element, at least one detection engagement means, at least one first stop and at least one second stop. The shaft is linked to the valve closure element and the shaft can rotate between a closed position and a fully open position. Each detection element comprises an aperture and an indicator element, the shaft extends through the aperture of at least one detection element, and each detection element is in sliding engagement with the shaft. The shaft can rotate relative to the detection element, each indicator element can move between a first and a second indicator position, each indicator element abuts a first stop when in the first indicator position and abuts a second stop when in the second indicator position.

A rotational valve includes a valve closure element, a shaft, at least one detection element, at least one detection engagement means, at least one first stop and at least one second stop. The shaft is linked to the valve closure element and the shaft can rotate between a closed position and a fully open position. Each detection element comprises an aperture and an indicator element, the shaft extends through the aperture of at least one detection element, and each detection element is in sliding engagement with the shaft. The shaft can rotate relative to the detection element, each indicator element can move between a first and a second indicator position, each indicator element abuts a first stop when in the first indicator position and abuts a second stop when in the second indicator position.