A valve control is configured for use with control valves and other flow controls. The valve control leverages a simplified structure to avoid problems with manufacture and reduce costs. This structure includes a support unit that compresses parts of a valve housing together. Inside of the valve housing, the structure incorporates diaphragms that cause a pair of balanced valves to move in response to changes in pressure of fluid in a conduit. For industrial application, the valve control finds use to maintain pressure of natural gas in pipelines downstream from a control valve.

A valve control is configured for use with control valves and other flow controls. The valve control leverages a simplified structure to avoid problems with manufacture and reduce costs. This structure includes a support unit that compresses parts of a valve housing together. Inside of the valve housing, the structure incorporates diaphragms that cause a pair of balanced valves to move in response to changes in pressure of fluid in a conduit. For industrial application, the valve control finds use to maintain pressure of natural gas in pipelines downstream from a control valve.

The invention relates to an actuator (10) for a process plant, comprising an actuating valve (14) and an actuating drive (12) which has an actuating drive housing (20) and a drive rod (18) mounted in the actuating drive housing (20), wherein the actuating drive housing (20) is connected to a valve housing (22) of the actuating valve (14) via a connecting housing. The invention is characterized in that a second rod coupling (46) and an adjusting rod (42) are provided, the adjusting rod (42) being provided in the region between the drive rod (18) and the valve rod (38), one rod coupling (44, 46) coupling the adjusting rod (42) to the drive rod (18), and one rod coupling (44, 46) coupling the adjusting rod (42) to the valve rod (18).

The invention relates to an actuator (10) for a process plant, comprising an actuating valve (14) and an actuating drive (12) which has an actuating drive housing (20) and a drive rod (18) mounted in the actuating drive housing (20), wherein the actuating drive housing (20) is connected to a valve housing (22) of the actuating valve (14) via a connecting housing. The invention is characterized in that a second rod coupling (46) and an adjusting rod (42) are provided, the adjusting rod (42) being provided in the region between the drive rod (18) and the valve rod (38), one rod coupling (44, 46) coupling the adjusting rod (42) to the drive rod (18), and one rod coupling (44, 46) coupling the adjusting rod (42) to the valve rod (18).

A valve includes a set screw that is screwable into and out of a complementary female threaded opening in a valve part for changing a setting of the valve, for changing an adjustable flow restriction of the valve, in which the set screw includes a free outer end that projects outside the valve part, and a gripping part on its free outer end for a tool to be engageable thereupon. The free outer end of the set screw includes a male thread onto which a locking nut is screwed. A protective cap is provided for covering the free outer end, that includes a first cap portion with a rotation space for fitting freely rotatable over the locking nut, and a second cap portion with a complementary female thread that is screwed onto the male thread towards a locked position.

A gasket device for a pneumatic valve system, in particular of a commercial vehicle, comprises gasket part being adapted to be inserted into at least a groove of a contact face of a first casing part, e.g. an adapter, the gasket part comprising at least one gasket chamber for sealingly connecting device channels of mounted casing parts; a body part being adapted to be received in a valve seat of the casing part; at least one spring part connecting the body part and the gasket part,
wherein the body part is moveable in an airflow direction relative to the gasket part by bending or stretching the at least one spring part,
wherein in an unbiased basic condition of the gasket device the body part is positioned above a gasket plane defined by the gasket chamber.

The gasket device is made as a single part of a flexible, elastic material.

A gasket device for a pneumatic valve system, in particular of a commercial vehicle, comprises gasket part being adapted to be inserted into at least a groove of a contact face of a first casing part, e.g. an adapter, the gasket part comprising at least one gasket chamber for sealingly connecting device channels of mounted casing parts; a body part being adapted to be received in a valve seat of the casing part; at least one spring part connecting the body part and the gasket part,
wherein the body part is moveable in an airflow direction relative to the gasket part by bending or stretching the at least one spring part,
wherein in an unbiased basic condition of the gasket device the body part is positioned above a gasket plane defined by the gasket chamber.

The gasket device is made as a single part of a flexible, elastic material.

The disclosure discloses a charging valve, an air conditioning system and an electric vehicle. The charging valve includes: an outer valve body including a first inner cavity, the outer valve body is provided with a connection port in communication with the first inner cavity; an inner valve body movably installed in the first inner cavity, the inner valve body has a sealing position for closing the connection port and a charging position for opening the connection port, and the inner valve body is provided with a second inner cavity; and a valve core assembly, installed in the second inner cavity. The inner valve body of such a charging valve realizes the isolation of the valve core assembly from the connection port. A problem that air enters the air conditioning system in a vacuum state or that leakage appears in the valve core assembly is avoided.

A plug for a valve for a container that may contain hazardous materials is provided. The plug may include an outer wall, and one or more keys disposed on an external surface of the outer wall. The keys may be sized and shaped to respectively fit within one or more corresponding notches and one or more circumferential grooves in the valve to secure the plug to the valve.

A clamp assembly to secure a yoke to a valve body of a knife gate valve is provided. The clamp assembly can include a bolt that is configured to extend through a first bushing, a first spring member, a first side wall of the yoke, the valve body, a second side wall of the yoke, a second spring member, and a second bushing. The clamp assembly can be configured to pin the yoke to the valve body, apply a pressure-containing preload to the valve body via the first and second bushings, and compress the first spring member between the first bushing and the first side wall of the yoke and the second spring member between the second bushing and the second side wall of the yoke.