Abstract: The apparatus for uninterrupted flushing a well bore being drilled with a jointed drill string comprises a continuous flushing valve (CFV) and a connector for temporarily attaching a bypass line to the valve. The CFV is a ball-type three way valve in a housing adapted for including in the drill string. Inside the housing there are two axial and two side sealing seats which provide for flow only through designated paths. The plug is prevented from loosening by a spring. An operating stem is mounted to operate the valve by a wrench from outside the housing. A connector facilitates fast tying a hose of a bypass line to the side port. A securing mechanism keeps a valve ball in full open position while a CFV is in the well.

Abstract: A gas tap for controlling the flow of a gas to a cooking appliance. In one embodiment, the gas tap includes a body and a rotatable regulation member positioned within the valve body, the valve body having a stationary groove for the inlet of gas from an exterior wall surface to an interior wall surface of the body, the regulation member having a passage opening for the inlet of gas from an exterior surface to an interior cavity of the regulation member, the passage opening moving with an angular rotation of the regulation member. The groove and passage opening are shaped, dimensioned and positioned relative to one another such that the regulation of an intermediate gas flow Qgra (a flow between Qmax and Qmin) is proportional to the angular displacement of the rotatable regulation member.

Abstract: The present invention relates to an actuation device (5) for shifting an actuation member (4) between two end positions, in particular for controlling a gas flow in an internal combustion engine, with an armature (13) which is mounted in a stator (14) such that it can move between two end positions in a pivoting manner about a pivot axis (7) and which is connected or can be connected in a rotationally fixed manner to the actuation member (4), with at least one electromagnet (10), which is arranged on or in the stator (14), for generating electromagnetic attractive forces, with at least one first stator-side bearing face (18), against which a first contact face (20) of the armature (13) bears when the armature (13) is in the first end position, and with at least one second stator-side bearing face (19), against which a second contact face (21) of the armature (13) bears when the armature (13) is in the second end position.

Abstract: A valve includes a body, a cage, a plug, a stem, a stop ring, and a pilot plug. The cage includes at least one cage port there through allowing fluid communication between the fluid inlet and the fluid outlet. The plug is movable linearly within the cage to allow fluid communication between the fluid inlet and the fluid outlet when the valve is open. The pilot plug is adapted to transfer downward force from the stem to the plug by contacting the stop ring of the plug and thereby urging the plug downward through the cage when the stem moves linearly downward to adjust the valve from the closed position to the open position. In an alternative embodiment, the stem includes a collar adapted to contact the plug and adjust the valve from the closed position to an open position.

Abstract: In accordance with different embodiments of the present invention, duckbill check valve 10, having an orifice 11, and conical check valve 12, having an orifice 13, are responsive to the differential pressure of fluid F as it flows between inlet 14 and outlet 16. In an innovative aspect of the invention, orifice 11 and orifice 13 each have a variable effective diameter. In one embodiment, the duckbill check valve 10 and conical check valve 12 have a conical end that is aligned with the direction of fluid flow. In another embodiment, the duckbill check valve 10 can have a conical end that faces the direction of fluid flow. A pin may traverse orifice 11 or 13.

Abstract: The present invention relates to a water-stop plug of the flush valve including a connecting sheet, a fixing component and a casing body. The connecting sheet includes a ring part and a pair of hook-hanging parts, and users are capable of choosing the ring part or the pair of hook-hanging parts to fix the water-stop plug to the overflow tube according to the original overflow tube structure, and thereby being able to replace different types of water-stop plugs of flush valves.

Abstract: The present invention provides a water flow control valve, which has an improved structure, thus reducing manufacturing costs and increasing the reliability of products. To achieve the above-mentioned purpose, the water flow control valve includes synchronous motors (20), which generate drive forces in directions opposite each other, an eccentric cam (30), which is provided between the synchronous motors (20) and converts a direction in which the drive force is transmitted, a power transmission unit (50), which is in rolling contact with the eccentric cam and adjusts the amount of fluid that flows through a housing using operation of the eccentric cam, and ratchet gears (40), which are provided between the synchronous motors and the eccentric cam and transmit the drive force of one of the synchronous motors while preventing the drive force of the remaining synchronous motor from being transmitted in a no-load operation manner.

Abstract: The invention relates to a flow adjustment valve (1) comprising a valve housing (2) having a flow channel (3) in which a throttle unit (4, 11) having an adjustable throttle element (11) and a shut-off unit having a shut-off element (4) which blocks the flow channel (3) in a closed position are arranged, the shut-off element (4) being actuatable from the outside by means of a handle (16). The aim of the invention is to simplify the handling of a flow adjustment valve of the aforementioned type. For this purpose, the throttle element (11) can also be actuated by means of the handle (16).

Abstract: A control valve has a body that forms a valve chamber and a valve seat, a metal diaphragm installed inside the valve chamber and making contact with and departing from the valve seat, an actuator box fixed to the side of the body, a piezoelectric element installed inside the actuator box to thrust the metal diaphragm through mediation of a metal diaphragm presser by elongating downward when voltage is applied, a conical spring mechanism that absorbs elongation of the piezoelectric element at the time when the metal diaphragm makes contact with the valve seat and a prescribed thrust is applied to the valve seat and the like, and a preload mechanism that applies upward compressive force to the piezoelectric element all the time wherein the compressive force applied to the piezoelectric element is externally adjustable.

Abstract: The present invention relates to a control valve (1) for controlling a gas flow in a gas line (3) of an internal combustion engine, in particular in a motor vehicle, comprising a rotationally adjustable flap (4) for controlling a flow cross section (13), a throttling sealing gap (14) which, in a closed position of the flap (4), is formed radially between a sealing contour (15) of the flap (4) and a sealing face (16) which faces the flap (4), and a drive shaft (5), on which the flap (4) is arranged fixedly in terms of rotation.

Abstract: A valve actuator is provided for use in conjunction with a drive motor and a valve. In one embodiment, the valve actuator includes a housing assembly, a first power screw rotatably mounted in the housing assembly and configured to be rotated by the drive motor, a first rack translatably mounted in the housing assembly, and a pinion rotatably mounted in the housing assembly and mechanically linked to the valve. The first rack is threadably coupled to the first power screw and is configured to move linearly as the first power screw rotates. The pinion engages the first rack and is configured to rotate as the first rack moves linearly to move the valve to a desired position.

Abstract: A pipe coupling capable of being safely connected and disconnected. The pipe coupling has a tubular housing (16), a first locking member (18), a pressing member (24), a valve member (30), and a second locking member (50) provided between the valve member (30) and the pressing member (24). When the housing is communicated with a fluid source with the pressing member (24) placed in a standby position (FIGS. 1 to 4), the second locking member is displaced by the valve member, which is displaced toward an open position by fluid pressure. In this process, the second locking member engages with the pressing member (24) before the valve member reaches the open position (FIG. 2), thereby preventing the valve member from reaching the open position and, at the same time, preventing the pressing member from being displaced to a pressing position. When the housing is communicated with the fluid source with the pressing member (24) placed in the pressing position (FIG.

Abstract: The invention relates to a shut-off device comprising a housing which is to be connected to an adjacent conduit in a pressure-tight manner. A tubular passage is defined in the housing for a medium flowing through the conduit. Said device also comprises at least one sealing body which can be displaced by an articulated mechanism, by means of an adjusting drive that can be moved vertically in relation to the direction of flow, from an open position into a closed position in which the sealing contour of the at least one sealing body comes into contact with the tubular passage in a radially sealing manner. The articulated mechanism is guided parallel to the direction of displacement of the adjusting drive and comprises a bearing body to which the at least one sealing body is pivotably applied.

Abstract: The present invention concerns a pipe joint, which includes a socket, and a plug arranged in confronting relation to the socket. A holder is disposed on one end of the socket. Further, a packing is retained between the socket and the holder. In addition, the packing is constructed from a body sealing portion disposed on an outer circumferential side thereof, a plug sealing portion disposed on an inner circumferential side thereof that abuts against an outer circumferential surface of the plug, and a valve sealing portion provided with a seating surface upon which a valve, which is disposed displaceably inside of the socket, can be seated.

Abstract: The invention relates to a slide valve, especially for controlling a flow of catalyst or like high-temperature media, having a pipe portion (10) and, arranged therein, a restrictor (11) which has an inlet opening and an outlet opening (12a, 12b) through which flow takes place during operation, and having a slide plate (13) which co-operates with the outlet opening (12b) to control the flow of catalyst and which is movable into an open position and a closed position I, II, the slide plate (13) being mounted so as to be displaceable by means of guide elements (14, 15) arranged on the pipe and on the plate, which guide elements are in engagement with one another. The invention is distinguished by the fact that the pipe-associated guide elements (14) are arranged before the outlet opening (12b) in the direction of flow.

Abstract: A control valve has a body that forms a valve chamber and a valve seat, a metal diaphragm installed inside the valve chamber and making contact with and departing from the valve seat, an actuator box fixed to the side of the body, a piezoelectric element installed inside the actuator box to thrust the metal diaphragm through mediation of a metal diaphragm presser by elongating downward when voltage is applied, a conical spring mechanism that absorbs elongation of the piezoelectric element at the time when the metal diaphragm makes contact with the valve seat and a prescribed thrust is applied to the valve seat and the like, and a preload mechanism that applies upward compressive force to the piezoelectric element all the time wherein the compressive force applied to the piezoelectric element is externally adjustable.

Abstract: A valve for restricting and closing plastic tubing, comprising a base having a surface for holding a plastics tube, two side guides extending from the base, a top provided with a restriction member and means for raising and lowering the restriction member on to a seat. One of the side guides is pivotally connected to the base and connectable to the top. The top having a bifurcation to accept the guide, a seat being provided on the bifurcation to hold a head on the side guide. The valve can be placed round a plastics tube and the restriction member positioned to set the flow through the tube. To remove the valve from the tubing, depression of the top releases the head of the side guide from its seat opening the valve.

Abstract: A differential dry pipe control valve for fire protection sprinkler systems includes an eccentric plug that rotates and separates supply water and system air pressure and uses an integral actuator that maintains the seal of the eccentric plug with a smaller ratio of air pressure to a higher supply water pressure. When the sprinkler system is actuated, the actuator allows the rotary eccentric plug to open the waterway and includes an eccentric plug opening that swings out of the waterway to reduce friction loss of the water supply. The eccentric plug includes a conical rubber coated seat surface and dynamic metal seal seat that seals due to water pressure eliminating close tolerance mating of sealing components. The actuator includes an integral alarm connection to provide a required alarm function and acts as a pilot differential actuator to provide the required operation of an approximately 5.5:1 ratio differential dry pipe control valve.

Abstract: A valve manifold includes a valve body carrying pairs of laterally spaced piston actuated valves controlled by control modules operative to selectively pressurize and exhaust an outlet port connected to a fluid device and configured in groupings permitting varying valve functionalities.

Abstract: A valve assembly (20) for an aircraft water supply system. The valve assembly (20) comprises a valve member (40), an electrical motor (64), and a mechanical returning mechanism (80). When electrical power is provided, the motor (64) can be controlled to move the valve member (40) from a first position and to a second position. The mechanism (80) is operably connected to the valve member (40) and mechanically biases it towards the first position. If a power loss occurs when the valve member (40) is in the second position, the returning mechanism (80) non-electrically (e.g., mechanically) returns the valve member (40) to the first position.