Abstract: Valve assemblies, systems, and methods may include at least one purging assembly comprising at least one purge port extending through a valve body or housing in order to supply a purge fluid into the valve body or housing. The at least one purge port is positioned on the valve body or housing to redirect a portion of the purge fluid as the purge fluid exits the at least one purge port.

Abstract: A gate valve for controlling flow of a fluid therethrough is provided. The gate valve includes a valve body having an outer surface, a bore, a valve cavity, a first seat pocket, a second seat pocket, and first and second fluid ports extending from the outer surface to the first and second seat pockets, respectively. First and second seats are positioned respectively within the first and second seat pockets. The seats include circumferential fluid channels and one or more conduits in fluid communication with the fluid ports for permitting a repair fluid to be injected into the ports to the faces of the seats. A gate is slidably positioned within the valve cavity between the first seat and the second seat for controlling flow of a fluid through the valve. Sand shields are also provided at the rear of the seats to capture particulates and to bias the seats against the gate.

Abstract: A pump (1, 100) has a pump housing (2) with an intake opening (3) and an outlet opening (4). A drivable impeller (5) is arranged in the pump housing (2) and conveys a fluid from the intake opening (3) toward the outlet opening (4). A valve element (10) is provided in the pump housing (2) and can be set by an actuator (15, 115) to set the fluid flow that is conveyed by the pump (1, 100). The setting of the valve element (10) can be influenced by a magnetorheological braking element (17, 117).

Abstract: An electro-pneumatic controller for use with a regulator. The electro-pneumatic controller includes a base having a body, a top surface, and a bore formed within the body. A locking mechanism is disposed within the bore of the body of the base, the locking mechanism having a top surface flush with the top surface of the base. A cover is coupled to the base and includes an open end with a rim, the rim contacting the top surface of the base and a portion of the top surface of the locking mechanism. The locking mechanism is rotated via a tool in a counter-clockwise direction after the cover contacts a portion of the top surface of the locking mechanism to lock the cover to the base.

Abstract: A rotary supply joint that may, in particular be a rotary timing valve, is provided for providing fluid flow at least periodically from inlet ports to outlet ports when respective openings in first and second surfaces which are rotating relative to each other are aligned, in which a gas bearing is arranged to provide a bearing force between the first and second surfaces.

Abstract: A valve device for connecting two conduits in a unit for conducting a product comprises a first shut-off member and a second shut-off member and a first leakage space between the first and the second shut-off members, a first connection for one of the two conduits on a side of the first shut-off member facing away from the leakage space, and a second connection for the other of the two conduits on the side of the second shut-off member facing away from the leakage space. A third shut-off member and a fourth shut-off member and a second leakage space are present between the third and the fourth shut-off members, wherein a central third leakage space is present between the second and the third shut-off members, and wherein the second connection for the other of the two conduits is arranged on a side of the fourth shut-off member facing away from the second leakage space.

Abstract: In order to free a seized valve, an inspection port is formed in a wall of the valve body and the areas where the valve is seized are determined. One or more injection ports are formed in the valve body adjacent to the seized portions of the valve, pressurized fluid (preferably an insoluble lubricant having a very high cone penetration) is injected through the or each injection port and the injection ports are then closed.