An electronic expansion valve includes a valve component and a stator component; the valve component includes a valve body assembly, a valve core, a threaded transmission assembly and a rotor; the valve body assembly is provided with a valve port, and the valve core is driven by the threaded transmission assembly to control an opening of the valve port; a wear-resistant coating is arranged on a contact surface of at least one of components having relative movement of the electronic expansion valve, the wear-resistant coating is applied by spraying, and the wear-resistant coating has a thickness of 5 to 8 microns; and the material of the wear-resistant coating includes a molybdenum disulfide material and a polytetrafluoroethylene material.

Various embodiments of an antimicrobial insert for a stopcock medical connector are provided. More specifically, the present invention relates to an antimicrobial insert that is seated within at least a portion of the annular bore of the connector's tap, wherein fluid within the annular bore contacts the antimicrobial insert, thereby preventing microbial proliferation within the stopcock medical connector.

An operation valve includes a valve formed into a rod shape and including a barrel portion in which a flow path for a fluid is provided, a head portion in which an inlet of the flow path is provided, and a leg portion in which an outlet of the flow path is provided, a housing body housing the barrel portion, and an operation dial screw coupled to the housing body and moving the valve in an extension direction of the valve.

An electronic expansion valve and a manufacturing method therefor, a thermal management assembly and a cooling system are provided. The electronic expansion valve includes a valve core assembly, an electronic control part and a stator assembly. The valve core assembly includes a valve base, a valve core and a rotor assembly, wherein the valve base is provided with a valve port, and the valve core moves relative to the valve base to change the degree of opening of the valve port. The electronic control part controls the stator assembly, and the rotor assembly drives the valve core to move. The electronic expansion valve further includes a sensor, the electronic control part includes an electronic control board, and the stator assembly and the sensor are both directly electrically connected to the electronic control board. The thermal management assembly and the cooling system both include the electronic expansion valve.

A holder for a magnet of a magnet sensitive regulating valve position detector of a regulating valve of a process plant. The detector can include a shaft turnably movable supported in a housing of the detector, the shaft defining a turning axis oriented parallel to a turning spring supporting itself at the housing, and having a lever arm being turnably fixed with the shaft, the lever arm being coupled to the regulating valve such that a regulating valve stroke movement by the lever arm is transferable into a shaft rotation movement. The holder includes a holding fixture to interlockingly hold the magnet, a fixing section connected to the holding fixture to fix the holder at the shaft turnably fixedly, and a support connected to the holding fixture and the fixing section to latchingly support the rotational spring to generate a rotational spring force on shaft rotation movement.

A valve includes an actuation assembly including a drive device that generates a driving force, a needle shaft connected, at one end thereof, to the drive device to receive the driving force from the drive device and perform linear motion, a needle nut that is coupled to the drive device and that has an empty space through which the needle shaft passes, so as to guide the linear motion of the needle shaft, and a valve disc coupled to an opposite end of the needle shaft, a body is coupled with the actuation assembly and that has a valve opening inside, the valve opening being selectively opened or closed as the valve disc, which is inserted into the body in which water flows, performs linear motion, and a clip that fixes the body and the actuation assembly such that the body and the actuation assembly are not separated from each other.

A valve includes an actuation assembly including a drive device that generates a driving force, a needle shaft connected, at one end thereof, to the drive device to receive the driving force from the drive device and perform linear motion, a needle nut that is coupled to the drive device and that has an empty space through which the needle shaft passes, so as to guide the linear motion of the needle shaft, and a valve disc coupled to an opposite end of the needle shaft, a body is coupled with the actuation assembly and that has a valve opening inside, the valve opening being selectively opened or closed as the valve disc, which is inserted into the body in which water flows, performs linear motion, and a clip that fixes the body and the actuation assembly such that the body and the actuation assembly are not separated from each other.

An actuator (1) comprising a motor (2) assembly, a drive coupling (113, 13, 313) assembly and an actuator shaft (114, 14). The motor (2) assembly comprising a motor housing (120, 20), having a cover (122, 22) and a base (123, 23); an electric motor (111, 11, 211, 2), comprising an external stator (111, 11, 211) and an internal rotor (112, 12); and a hollow output shaft (130, 30, 330) that is connected co-axially with the internal rotor (112, 12) such that rotation of the internal rotor (112, 12) causes a corresponding rotation of the hollow output shaft (130, 30, 330). The drive coupling (113, 13, 313) assembly comprises a drive coupling housing (115, 15, 315) containing a drive coupling (113, 13, 313), wherein the drive coupling (113, 13, 313) engages the hollow output shaft (130, 30, 330) such that rotation of the hollow output shaft (130, 30, 330) causes a corresponding rotation of the drive coupling (113, 13, 313). The actuator shaft (114, 14) extends through the hollow output shaft (130, 30, 330) and the internal rotor (112, 12), and engages the drive coupling (113, 13, 313) such that rotation of the drive coupling (113, 13, 313), by the hollow output shaft (130, 30, 330), causes the actuator shaft (114, 14) to move axially.

An actuator (1) comprising a motor (2) assembly, a drive coupling (113, 13, 313) assembly and an actuator shaft (114, 14). The motor (2) assembly comprising a motor housing (120, 20), having a cover (122, 22) and a base (123, 23); an electric motor (111, 11, 211, 2), comprising an external stator (111, 11, 211) and an internal rotor (112, 12); and a hollow output shaft (130, 30, 330) that is connected co-axially with the internal rotor (112, 12) such that rotation of the internal rotor (112, 12) causes a corresponding rotation of the hollow output shaft (130, 30, 330). The drive coupling (113, 13, 313) assembly comprises a drive coupling housing (115, 15, 315) containing a drive coupling (113, 13, 313), wherein the drive coupling (113, 13, 313) engages the hollow output shaft (130, 30, 330) such that rotation of the hollow output shaft (130, 30, 330) causes a corresponding rotation of the drive coupling (113, 13, 313). The actuator shaft (114, 14) extends through the hollow output shaft (130, 30, 330) and the internal rotor (112, 12), and engages the drive coupling (113, 13, 313) such that rotation of the drive coupling (113, 13, 313), by the hollow output shaft (130, 30, 330), causes the actuator shaft (114, 14) to move axially.

An expansion valve includes: a main body portion having a valve chamber and a valve seat; a valve body configured for moving forward and backward relative to the valve seat; a case fixed to the main body portion; an excitation portion; a rotor that is driven to rotate by the excitation portion; and a forward and backward moving mechanism that converts a rotational movement of the rotor into a linear movement to move the valve body forward and backward. The valve chamber has a bellows housed therein externally mounted on the valve body and configured for expanding and contracting in association with the forward and backward movement of the valve body, and a space between the bellows and the valve body is held in a vacuum state.