An electromagnetic valve is configured with an electromagnetic section, a flow path section, and a sealing member between them. This separate arrangement improves a degree of freedom for arranging inflow and/or outflow passage. This separate arrangement also enables to reduce a size of the electromagnetic section. A plunger comes in contact with a central portion of a spherical portion of a valve member. A normally open compression spring comes in contact with a peripheral portion of the valve member. The valve member can be reliably seated on the normally close valve seat even if the plunger is slightly tilted.

Gas flow control valves comprising a valve housing including a cylindrical interior passage, and a housing opening extending from the interior passage through the housing. The gas flow control valve further comprises a cylindrical rotary valve element including a sidewall, and a rotary valve element opening extending through the sidewall. The valve element is rotatably received within the interior passage of the valve housing, such that the housing opening may be selectively aligned with the rotary valve element opening, and an area of overlap of the housing opening and the valve element opening may be varied by rotating the valve element within the interior passage of the valve housing.

A downhole valve to be used in a flow management system that comprises a valve inlet for coupling with a hydrocarbon reservoir pump outlet, a valve outlet for coupling with production tubing transport to the surface pumped hydrocarbons, a valve body with a valve body centerline that extends between the valve inlet and outlet, and a spill port for bypassing a backflow.

Embodiments of the present invention provide a flow router for inclusion in a production string that is for insertion in a well casing, the flow router comprising a retrievable assembly removably inserted in a perforated cover and a valve of the retrievable assembly including a valve body extending between opposed first and second ends of the valve to define an axial flow path, the retrievable assembly retrievable to and removable from an open end of the production string.

The present disclosure discloses a socket device comprising a fixing portion. The fixing portion comprises a socket portion, a water inflow passage, a first water outflow passage, a second water outflow passage, a first switching mechanism, a first water dividing passage, and a first control mechanism. The socket portion comprises a switch. The second water outflow passage, the first water outflow passage and the second water outflow passage are switched to be connected to the water inflow passage by the first switching mechanism. The switch is connected to the first switching mechanism to drive the first switching mechanism. The first control mechanism is configured to control the water inflow passage to be connected to the first water dividing passage or control the first water dividing passage to be opened or to be closed.

Embodiments of the present invention provide a flow router for inclusion in a production string that is for insertion in a well casing, the flow router comprising a retrievable assembly removably inserted in a perforated cover and a valve of the retrievable assembly including a valve body extending between opposed first and second ends of the valve to define an axial flow path, the retrievable assembly retrievable to and removable from an open end of the production string.

An electromagnetic valve is configured with an electromagnetic section, a flow path section, and a sealing member between them. This separate arrangement improves a degree of freedom for arranging inflow and/or outflow passage. This separate arrangement also enables to reduce a size of the electromagnetic section. A plunger comes in contact with a central portion of a spherical portion of a valve member. A normally open compression spring comes in contact with a peripheral portion of the valve member. The valve member can be reliably seated on the normally close valve seat even if the plunger is slightly tilted.

A T-joint includes a pipe body and a switch. The pipe body includes an inlet opening, a first outlet opening, a second outlet opening and a switch accommodating space communicating with each other. The switch is positioned into the switch accommodating space of the pipe body, and includes a pressed member and an outlet-selecting member. The pressed member and the outlet-selecting member are connected to each other. By pressing either a first pressed portion or a second pressed portion of the pressed member, the isolating member of the switch could be positioned to lead the inlet opening to communicate with a corresponding one of the first outlet opening and the second outlet opening.

A T-joint includes a pipe body and a switch. The pipe body includes an inlet opening, a first outlet opening, a second outlet opening and a switch accommodating space communicating with each other. The switch is positioned into the switch accommodating space of the pipe body, and includes a pressed member and an outlet-selecting member. The pressed member and the outlet-selecting member are connected to each other. When a first pressed portion of the pressed member is pressed, an isolating member of the switch is positioned to isolate the inlet opening from the second outlet opening, but the first outlet opening communicates with the inlet opening, whereby a water flow merely outlets from the first outlet opening. When a second pressed portion of the pressed member is pressed, the isolating member of the switch is positioned to isolate the inlet opening from the first outlet opening, but the second outlet opening communicates with the inlet opening, whereby a water flow merely outlets from the second outlet opening.

The present disclosure discloses a socket device comprising a fixing portion. The fixing portion comprises a socket portion, a water inflow passage, a first water outflow passage, a second water outflow passage, a first switching mechanism, a first water dividing passage, and a first control mechanism. The socket portion comprises a switch. The second water outflow passage, the first water outflow passage and the second water outflow passage are switched to be connected to the water inflow passage by the first switching mechanism. The switch is connected to the first switching mechanism to drive the first switching mechanism. The first control mechanism is configured to control the water inflow passage to be connected to the first water dividing passage or control the first water dividing passage to be opened or to be closed.