Provided is a tandem cone valve capable of avoiding or reducing resistance on a valve switch caused by fluid pressure in a pipeline in the opening or closing stage. The cone valve includes valve rods, valve cores and a valve body. The valve cores include a first valve core and a second valve core. The first valve core and the second valve core are coaxially arranged in a valve core cavity. The outer walls of the valve cores are in the shape of cones; the first valve core and the second valve core are stacked one on the other, the first valve core is provided with a first valve core first flow hole and a first valve core second flow hole which penetrate through the inner wall and the outer wall of the first valve core, and the valve core cavity is provided with a valve core cavity flow hole corresponding to the first valve core first flow hole and the first valve core second flow hole. The cone valve is provided with the second valve core stacked coaxially on the base of the first valve core, and the second valve rod driving the second valve core to rotate is arranged in the first valve rod in a sleeved manner, thus the valve is simple and compact in structure; and the two levels of valve cores can each rotate to open/close the valve level by level, thus reducing momentary resistance when opening and closing a large cone valve.

Embodiments of the invention provide a coupler for use in a closed transfer system configured to selectively engage a container seated in fluid communication with the coupler. The coupler has a body with a slot having an axial component, and an outlet. A probe extends from a first end portion to a second end portion and is at least partially received within the body, the probe is configured to be movable relative to the body between a first position and a second position to selectively control a flow of fluid through the outlet. A probe tip with a cylindrical bore is configured to engage the second end portion of the probe, and a handle is coupled to the probe and configured to interface with the slot. Axial movement of the handle along the slot moves the probe between the first position and the second position.

Embodiments of the invention provide a probe assembly configured to selectively restrict fluid flow through an outlet of a closed transfer system. The probe assembly has an elongate probe body with a top end portion, a bottom end portion, an outer wall, and an internal structure defining a fluid chamber extending from the bottom end portion to the top end portion. The fluid chamber has a fluid chamber inlet at the bottom end portion extending through the outer wall into the fluid chamber and a fluid chamber outlet at the top end portion extending from the fluid chamber through the outer wall. A probe tip with a cylindrical bore is configured to engage the top end portion of the elongate probe body and a probe tip outlet is configured to be in fluid communication with the fluid chamber outlet. A rotating head located circumjacent to the probe tip and adjacent to the probe tip outlet is configured to rotate about the probe tip. The rotating head having an inner surface, an outer surface, and a vane extending from the inner surface through the outer surface.

A switching device includes a rod, a rotating shaft, and a valve assembly including a cover and a plug member. The cover engaged with the valve body has a first block section, a second block section, a space, and a threaded hole communicates with the space. The plug member is rotatably provided in a chamber of the cover, changing an area of an opening of an inlet hole. The rotating shaft has a projection is adapted to drive the plug member to rotate. A rod body of the rod has a threaded section engaged with the threaded hole. When the projection abuts against the first block section, the plug member seals the inlet hole. When the projection abuts against the rod, the plug member changes the area to a first area. When the projection abuts against the second block section, the plug member changes the area to a second area.

A self-compensated sealed rotary cone valve core, comprising a valve sleeve, wherein an upper part of the valve sleeve is provided with an axial through hole; a lower chamber of the valve sleeve is provided with a conical surface coaxial with the axial through hole; an inlet cavity is formed in the cone platform; a through hole communicated with a water outlet in a side wall of the lower part of the valve sleeve is formed in a side wall of the inlet cavity; a screw rod part of the core shaft penetrating through the valve sleeve is sequentially sleeved by a limiting piece and a spring gasket and is locked by a screw nut to realize pre-tightening sealing and rotary positioning with the valve sleeve. The valve core is simple in structure and convenient to process and mount, self-sealing and wear self-compensation can be achieved.

A motor water valve is provided, the motor water valve can prevent a pressure of a fluid from being too great and prevent motor water valve from failing to function and leaking water, and the motor water valve can control a flow of the fluid flowing through a piping member so as to control in segments. In addition, the motor water valve is an intelligent water valve system which can be in communication with an application unit through wireless network to be remotely set up and operated so that a person can use the motor water valve even when they are not around.

A self-compensated sealed rotary cone valve core, comprising a valve sleeve, wherein an upper part of the valve sleeve is provided with an axial through hole; a lower chamber of the valve sleeve is provided with a conical surface coaxial with the axial through hole; an inlet cavity is formed in the cone platform; a through hole communicated with a water outlet in a side wall of the lower part of the valve sleeve is formed in a side wall of the inlet cavity; a screw rod part of the core shaft penetrating through the valve sleeve is sequentially sleeved by a limiting piece and a spring gasket and is locked by a screw nut to realize pre-tightening sealing and rotary positioning with the valve sleeve. The valve core is simple in structure and convenient to process and mount, self-sealing and wear self-compensation can be achieved.

A switching device includes a rod, a rotating shaft, and a valve assembly including a cover and a plug member. The cover engaged with the valve body has a first block section, a second block section, a space, and a threaded hole communicates with the space. The plug member is rotatably provided in a chamber of the cover, changing an area of an opening of an inlet hole. The rotating shaft has a projection is adapted to drive the plug member to rotate. A rod body of the rod has a threaded section engaged with the threaded hole. When the projection abuts against the first block section, the plug member seals the inlet hole. When the projection abuts against the rod, the plug member changes the area to a first area. When the projection abuts against the second block section, the plug member changes the area to a second area.

Provided is a tandem cone valve capable of avoiding or reducing resistance on a valve switch caused by fluid pressure in a pipeline in the opening or closing stage. The cone valve includes valve rods, valve cores and a valve body. The valve cores include a first valve core and a second valve core. The first valve core and the second valve core are coaxially arranged in a valve core cavity. The outer walls of the valve cores are in the shape of cones; the first valve core and the second valve core are stacked one on the other, the first valve core is provided with a first valve core first flow hole and a first valve core second flow hole which penetrate through the inner wall and the outer wall of the first valve core, and the valve core cavity is provided with a valve core cavity flow hole corresponding to the first valve core first flow hole and the first valve core second flow hole. The cone valve is provided with the second valve core stacked coaxially on the base of the first valve core, and the second valve rod driving the second valve core to rotate is arranged in the first valve rod in a sleeved manner, thus the valve is simple and compact in structure; and the two levels of valve cores can each rotate to open/close the valve level by level, thus reducing momentary resistance when opening and closing a large cone valve.

Fluid flow control devices and related systems and methods may include a body or housing and a plug at least partially positioned in the body or housing to define a flow path. In a position of the plug, the plug and the body or housing may collectively define a fluid flow path.