A water control valve with offset valve core has a main body with a flowing slot, the circumferential wall of which is formed with a water inlet and outlet. An offset rotary valve core is configured offset inside the flowing slot and has a rotary shaft and a water stopping seat. The face of the water stopping seat faces the circumferential wall and has a sealing ring. When the water stopping seat rotates along with the offset rotary valve core and is aligned with the inlet, the sealing ring is pressed against the circumferential wall to close the inlet, thus forming the water stop mode. The rotary shaft and the circumferential wall of the flowing slot define a flowing space. The flow from the inlet must pass through the flowing space and exit through the outlet. A dialing component is used to connect and drive offset rotary valve core.

A valve includes a housing having a housing cavity and at least two housing openings. A valve body is rotatably provided in the housing cavity and includes a valve body top portion, a valve body bottom portion and a valve body sidewall. The valve body sidewall has an upper valve body sidewall and a lower valve body sidewall which are connected to each other. An outer surface of the upper valve body sidewall is a partial cylindrical surface, and an outer surface of the lower valve body sidewall is shaped to have a gradually decreasing diameter in a direction from top to bottom. A seal is provided on the valve body sidewall and the seal is configured to match with the housing to enable the valve body sidewall to close at least one of the housing openings.

A connection system for components through which a fluid is passed comprises an actuator and a main housing. The actuator has a cylindrical portion with an outer face. A handgrip is arranged at a first end of the cylindrical portion. In the region of a second end the cylindrical portion has a cavity, which is open towards the second end, and in the region of the second end there are arranged at least two gate-like passage openings for fluid connection. The main housing has a main body and at least two fluid passages arranged laterally on the main body. The main body has a cavity with an open first end, a base in the region of a closed second end, and at least two laterally arranged openings. A substantially cylindrical protrusion is arranged on the base of the main body and a peripheral shaping is arranged in the region of the second end of the actuator, which shaping at least partially surrounds the protrusion and thus forms a counter bearing for the second end of the actuator.

Systems, methods, and apparatuses for mechanically securing a check valve in an open position during maintenance and testing operations. For example, there is a system including: a set rod having a first end and a second end, and a curved portion, in which the first end of the set rod is to be placed against a clapper inside the check valve; a first connecting nipple having a first end to thread into a ball drip outlet of the check valve and a second end to receive a rod locking component; the rod locking component having at least: (i) a first end to attach with the second end of the first connecting nipple, (ii) a second end, and (iii) a lock mechanism positioned in a center portion of the rod locking component to positionally fix the set rod in its position while placed against the clapper inside of the check valve; in which the first end of the set rod is to be positioned against the clapper inside the check valve, in which the set rod is fixed in its position by the lock mechanism of the rod locking component, and in which the set rod traverses through the ball drip outlet of the check valve into the first connecting nipple, through the first connecting nipple into the rod locking component, and egresses through the second end of the rod locking component. Other related embodiments are disclosed.

A conversion kit creates a redundant hydraulic, pneumatic, or mechanical control functionality for low-torque, quarter-turn plug valves in remote production environments (i.e., rural or subsea pipelines). The conversion kit comprises at least one custom end cap fitted to the valve and comprising a socket receiving a rotator attachment. Each rotator attachment is in turn connected to a crossover which connects to a bracket remotely actuated via hydraulic, pneumatic, or mechanical control. The linear movement of the bracket and the attached crossover[s] is converted to rotational force which is transmitted through the rotator attachments to the at least one valve.

A rotary valve has a valve plug that is rotatable in a valve body about a rotational axis. Surface features of the valve plug and surface features of the valve body cooperate to provide a bearing by which the valve plug is rotatably supported with respect to the valve body. In addition, each of the valve plug and the valve body include a plurality of annular projections that encircle the plain bearing and axially overlap one another so as to form a labyrinth that surrounds the bearing. The labyrinth forms a fluid path that collects abrasive particles suspended in the fluid passing through the valve, whereby wear of the valve is reduced.

A plug valve assembly has a valve body with an inlet and an outlet each defining a fluid passageway in fluid communication with a cavity defined within the valve body. The valve body further has a collar defining a service opening extending upward from the valve body. A plug with a spindle top and a plug body is disposed within the cavity. The plug has an opening that is operable to obstruct the fluid passageway when it is in a closed position and to connect the inlet to the outlet when it is in an open position. The spindle top of the plug has a hexagonal outer profile and a through opening and adaptable to engage with a variety of actuating devices. A threaded cap is removably engaged with the collar of the valve body and is operable to retain the plug within the valve body cavity.

A non-contact actuation assembly configured to operate a communication line of an infrastructure system through a panel having an external face configured to be directed into an interior of a building structure, and an opposite internal face, said assembly comprising; an actuator configured to be positioned adjacent said external face by a user during operation, said actuator comprising an actuating member constituted by at least one of a magnetic member and a magnetizable member; and an operator configured to be disposed adjacent said internal face during operation, and control communication at said communication line, said operator comprising an operating member constituted by a matching one of said magnetic member and said magnetizable member; wherein upon said positioning of said actuator adjacent said external face, in register with said operator, said actuating member and said operating member are configured to be magnetically coupled such that said operator is switchable, upon disposition of said actuator member with respect to said external face, at least between a first state in which communication in said communication line is established and a second state n which communication in said communication line is obstructed.

A valve for controlling the water flow in a sanitary line has a housing with a housing lower part in which a water supply channel portion, a control channel, and a water discharge channel portion are arranged in the flow direction. The control valve has a valve upper part with a head piece, which is arranged in a housing bore coaxially to the bore axis and to which a stator disc with a first ceramic surface is secured, and with a spindle, with which a rotor disc with a second ceramic surface is in engagement. The control valve also has an electric drive which is arranged in the housing upper part and which is in engagement with the spindle. Two seals which rest against the head piece and the spindle seal the control channel of the control valve from a housing upper part.

Irrigation valves for channels and for irrigation tanks are of three types. All are activated by a pair of tilting float arms to which a pair of floats are attached. One type is a T-shaped duct with a cylindrical valve disposed at 90 degrees to the part that is connected to the incoming flow. The floats rotate the valve. The second type has the same construction as the first type, thereby giving flow control but additionally has a rise and fall gate in the duct part that is connected to the incoming flow. The gate acts as a stop valve. The third type has a cylindrical duct connectable to the incoming flow but no valve and provides both flow control and stop valve facilities through a rise and fall gate actuated by the tilting of the float arms.