A valve assembly includes a body having spaced apart ports defining a flow passageway therebetween and a top surface. A valve is disposed in the flow passageway. A bonnet is coupled to the top surface of the body. A rising stem is supported by the bonnet and is operably coupled to the valve. A cap includes a bottom sealingly coupled to at least one of the body or the bonnet and an opening. The cap is disposed over the bonnet with the stem extending through the opening.

A valve assembly includes a body having spaced apart ports defining a flow passageway therebetween and a top surface. A valve is disposed in the flow passageway. A bonnet is coupled to the top surface of the body. A rising stem is supported by the bonnet and is operably coupled to the valve. A cap includes a bottom sealingly coupled to at least one of the body or the bonnet and an opening. The cap is disposed over the bonnet with the stem extending through the opening.

A pressure-tight stein cylinder seal and a self-energizing stein shoulder seal matching the stein cylinder seal that both use an equilaterally triangular soft ring as their sealing element, wherein their designing rules are first, by means of wedging function of a hard gland coaxial with the stein cylinder, to convert their original axial tightening force 2f respectively into a radial compression force 4f/√3 of their soft ring 04 on the stein 02 cylinder and another radial compression force 2f of their soft ring 06 on the stein 02 shoulder and ensure that the two soft rings are so compressed from a great room to a small room as to be able to pass a pressure or stress exactly to each different direction, then to cut off their off-stein corners to give their cavities an opening or give each soft ring an axial compressing allowance, and last, by means of anti-extrusion metallic C-rings without axial resistance, to close each opening to provide a full support for the sealing deformation of their soft rings compressed in their cavities.

A pressure-tight stein cylinder seal and a self-energizing stein shoulder seal matching the stein cylinder seal that both use an equilaterally triangular soft ring as their sealing element, wherein their designing rules are first, by means of wedging function of a hard gland coaxial with the stein cylinder, to convert their original axial tightening force 2f respectively into a radial compression force 4f/√3 of their soft ring 04 on the stein 02 cylinder and another radial compression force 2f of their soft ring 06 on the stein 02 shoulder and ensure that the two soft rings are so compressed from a great room to a small room as to be able to pass a pressure or stress exactly to each different direction, then to cut off their off-stein corners to give their cavities an opening or give each soft ring an axial compressing allowance, and last, by means of anti-extrusion metallic C-rings without axial resistance, to close each opening to provide a full support for the sealing deformation of their soft rings compressed in their cavities.

A valve device includes a housing, a valve, a partition wall, and a seal member. The partition wall is fit into the housing. The housing includes a first cylindrical inner wall, a second cylindrical inner wall, and a third inner wall. The second cylindrical inner wall is tapered from the third inner wall to the first cylindrical inner wall and the third inner wall defines a housing through hole. The partition wall defines a partition wall through hole that extends in the radial direction and that overlaps with both the first cylindrical inner wall and the second cylindrical inner wall in the radial direction. An annular space that is in communication with both the partition wall through hole and the housing through hole is defined between the second cylindrical inner wall and the outer wall of the partition wall.

Gas meters including a first portion and a second portion are provided. The first portion is separate and distinct from the second portion and a physical barrier is positioned between the first portion and the second portion. The first portion includes at least a motor associated with a shut-off valve for the gas meter and the second portion includes at least an area for a gas stream to flow through. Related gas regulating devices are also provided herein.

Sealing system of a device for allowing the passage of a medium, in particular in the high pressure range, is provided with a housing that has a bore hole, a component mounted within the housing such as to oscillate and/or rotate and with a pressure chamber formed within the bore hole. A sealing element surrounding the component adjoins this pressure chamber which can be charged with the medium. An additional metal seal is formed here by the housing and a pressure disc surrounding the component. The outer region is thus tightly closed after the sealing element. In this way, the sealing element is completely tightly encapsulated on the outside.

A bellows assembly is configured to mount between a movable valve structure and a stationary valve structure of a valve assembly. The bellows assembly comprises a bellows and a spacer. The bellows is configured to compress until a gap is closed relative to the spacer. The bellows assembly is configured to bear a load through the bellows before the gap is closed, and the bellows assembly is configured to bear the load through the bellows and the spacer after the gap is closed.

A water valve that does not include a stem or handwheel that can calcify and become hard to operate. The valve includes a stopper within a body running perpendicular to the flow of water that can be pushed inward to stop the flow of water or pulled outward to allow the flow of water. The stopper is connected to a handle that a user can push or pull depending on the action to be taken. The use of the stopper and handle in a push/pull arrangement provides an easy manner of operation as it does not require any turning of a handwheel or the like.

A water valve that does not include a stem or handwheel that can calcify and become hard to operate. The valve includes a stopper within a body running perpendicular to the flow of water that can be pushed inward to stop the flow of water or pulled outward to allow the flow of water. The stopper is connected to a handle that a user can push or pull depending on the action to be taken. The use of the stopper and handle in a push/pull arrangement provides an easy manner of operation as it does not require any turning of a handwheel or the like.