Abstract: This document describes fluid handling couplings. For example, this document describes fluid handling couplings that include manually openable valves and that are configured for aseptic fluid handling usage. In some embodiments, the valves are manually openable by rotation of a collar of the fluid handling couplings.

Abstract: A flush water tank apparatus has a reservoir tank, a discharge valve, a discharge valve hydraulic drive portion configured to drive the discharge valve, and a discharge/vacuum break valve device configured to supply the water supplied from the upstream side to the discharge valve hydraulic drive portion on a downstream side. The discharge valve hydraulic drive portion includes a cylinder, and a piston configured to be moved by a pressure of the water flowing into the cylinder to move the discharge valve. The discharge/vacuum break valve device includes a valve body that operates to discharge the water flowing backward from the discharge valve hydraulic drive portion while opening the upstream side to an atmosphere when the supply of the water from the upstream side is stopped.

Abstract: An apparatus comprises a frangible structure coupled or integral to at least a portion of the apparatus and a triggerable mechanism disposed at or proximate the frangible structure. The triggerable mechanism is configured to break the frangible structure in response to a trigger signal. A containment structure is disposed on or over at least a portion of the frangible structure. The containment structure is configured to allow at least the portion of the frangible structure to deform or change shape in response to breaking of the frangible structure while keeping substantially all fragments of at least the portion of the broken frangible structure together.

Abstract: A method of controlling flow through a flexible tube includes providing a pinch clamp mechanism including a pinching element and a pinching surface configured to apply a force on the flexible tube when the flexible tube is positioned between the pinching element and the pinching surface. The method also includes displacing the pinching element relative to the pinching surface with a mechanical drive unit and biasing the pinching element toward the pinching surface with a spring.

Abstract: A method of calibrating a choke system includes connecting to the positioner an electronic controller which is programmed to output a control signal representing the desired position of the plug, connecting to the electronic controller a flowmeter which is configured to provide a flow signal representing the rate of flow of fluid from the pump to the inlet and a pressure sensor which is configured to provide a pressure signal representing the fluid pressure at the inlet, connecting the inlet to a reservoir of fluid via a pump which is operable to pump fluid from the reservoir into the inlet at varying flow rates, and using gain scheduling to determine optimum values of proportional gain and integral gain required for control of the choke using a proportional differential and integral controller at a plurality of different rates of flow of fluid along the central flow passage.

Abstract: A medical endoscope is an instrument having an elongate, tubular shaft. The instrument is commonly provided with a flushing device. The flushing liquid can be guided through corresponding separate liquid channels. In order to be able to control the flow of the liquid, the liquid channels have a stopcock. The stopcocks here are of complex construction, and for this reason both the production thereof and the cleaning thereof are complicated. The invention includes a stopcock and also a housing and a method for producing the housing, by way of which the production and the cleaning of the housing are simplified. This is achieved in that a housing and at least one spring element for form-fitting fixing of a plug in a position in the interior space of the housing are manufactured integrally from a single part, that is to say in one part.

Abstract: A main valve for a straightway deluge valve includes a valve body (1), a valve cover (2), a diaphragm (3), a drawing piston (4), a diaphragm pressure plate (5), a drawing link (6), a valve body link (7), a valve plate link (8), a rotatable lip and a mounting hole cover (13). A piston guide is provided at a side part of the valve body (1). The drawing piston (4) is provided slidably in the piston guide along a left-right direction. When the drawing piston (4) slides along the piston guide, the rotatable lip can contact with or separate from the inner sealing end surface. The main valve for drawing the straightway deluge valve, after the valve plate (9) is opened, enables the flow passage to be close to a straightway passage, thereby reducing flow loss.

Abstract: A gate valve opens and closes a first opening of a first chamber in a vacuum processing apparatus. The gate valve includes: a valve element configured to open and close the first opening; a drive configured to move the valve element so that the valve element takes at least a closing position, where the valve element closes the first opening, and an opening position, where the valve element opens the first opening; a first gas line and a second gas line; and a first switching valve that connects one of the first gas line and the second gas line to the drive. The drive moves the valve element from the opening position to the closing position by pressure of gas supplied from the first gas line or the second gas line, and holds the valve element at the closing position by pressure of gas supplied from the second gas line.

Abstract: A valve unit includes an actuator, a first valve and a second valve. The first/second valve includes a first/second valve housing and a first/second valve body. The first/second valve body is rotatably arranged in the first/second valve housing. The two valves are arranged coaxially to one another and rotatable about a common adjusting axis. The actuator is non-releasably coupled to the first valve body and releasably coupled to the second valve body via the first valve body. The first valve body is rotatable in a first and second direction of rotation with the actuator. The second valve body in the coupled state is co-rotatable with the first valve body in the first/second direction of rotation and in the decoupled state is not co-rotatable with the first valve body at least in the second direction of rotation. In addition, a method for adjusting the valve unit is provided.

Abstract: An inline valve includes a sliding piston having a radially outer stop portion with a forward end. A radially inner sliding portion is connected to the radially outer stop portion by an arm. A housing includes an outer housing body surrounding the piston. The housing has a stop surface selectively in contact with the forward end of the radially outer stop portion of the piston to block flow for a housing inlet to a housing outlet. The radially inner sliding portion slides on a support tube. At least a portion of the radially inner sliding portion is formed of a first material having better wear resistance than a second material forming the outer stop portion of the piston. The second material has a greater resistance to high temperature and pressure than the first material. A vent valve for a compressor is also disclosed.

Abstract: A bonnet and stuffing box assembly includes a bonnet defining a bonnet bore; a stuffing box connected to the bonnet, the stuffing box defining a stuffing box bore, the stuffing box bore and bonnet bore defining an assembly bore; a bushing assembly received in the assembly bore and comprising a stuffing box bushing and a bonnet bushing, the stuffing box bushing defining a narrow portion disposed in the stuffing box bore and a wide portion at least partially disposed in the bonnet bore, the bonnet bushing disposed in the bonnet bore and confronting the wide portion of the stuffing box bushing, the bushing assembly defining a bushing bore extending through the stuffing box bushing and the bonnet bushing; and a stem extending through the bushing bore.

Abstract: A tilting armature for a vehicle solenoid valve, including: a ferromagnetic tilting armature for the vehicle solenoid valve which, by establishment of a magnetic field, is configured to move the tilting armature into one of two positions such that a magnetic flux, associated with the magnetic field, through the tilting armature is in the position conducted through at least one surface of the tilting armature across a gap to form a closed flux loop, wherein the tilting armature is tiltable between the two positions about an axis of rotation that is fixed with respect to the vehicle solenoid valve; in which an enlargement of the at least one surface of the tilting armature by an edge upset of the tilting armature is configured to reduce a magnetic resistance through the gap. Also described are a related vehicle solenoid valve and a related method.

Abstract: A valve assembly includes a housing, a segmented stem, a ball segment, a biasing element, and an adjustment bolt. The housing includes a flow duct connecting a first flow opening to a second flow opening and a neck defining an elongated chamber. The segmented stem includes an upper portion and a lower portion, wherein the upper portion is positioned within the elongated chamber and the lower portion is coupled to the housing. The ball segment includes a first attachment portion, a second attachment portion, and a curved portion extending between the first attachment portion and the second attachment portion. The biasing element is positioned between the first attachment portion and the upper portion. The adjustment bolt is coupled to the lower portion, wherein the biasing element and the adjustment bolt adjusts the ball segment toward a seated position when the ball segment is rotated to a closed position.

Abstract: A pinch valve assembly has opposing pinch members for pinching oppositely against a fluid conduit sleeve and a hydraulic displacement mechanism acting on the opposing pinch members. The hydraulic displacement mechanism a hydraulic displacement push rod coupled to a first pinch member at one end and penetrating a hydraulic reservoir at an opposite end to displace hydraulic fluid therein and a pinch member push rod penetrating the hydraulic reservoir at one end and coupled to a second pinch members at an opposite end. As the first pinch member moves towards the sleeve to pinch against one side of the sleeve, the at least one hydraulic displacement push rod moves into the hydraulic reservoir to displace hydraulic fluid therein to cause the pinch member push rod to be pushed from the hydraulic reservoir under pressure to push against the second pinch member to pinch against an opposite side of the valve.

Abstract: A relief device in air pump includes a main body defining an interior space and a discharge passage fluidly communicating with the interior space. The discharge passage is selectively closed and opened by a valve device. The valve device is movable in the discharge passage. The valve device includes a first sealing portion and a second sealing portion selectively engaging with the discharge passage. The valve device is movable between a first position in which one of the first and the second sealing portions engages with the discharge passage and a second position in which the other of the first and the second sealing portion engages with the discharge passage. The discharge passage has a length measuring from the first end to the second end thereof, which is smaller than a length which measures a separation distance between the first and the second sealing portions.

Abstract: A three-way solenoid valve comprising: a valve block including a valve chamber and a first port, a second port, and a third port fluidly communicating with the valve chamber; an armature; a body; a plunger; and a flow path control assembly that is disposed inside the second body and includes a first opening/closing flow path, which allows the first port and the second port to fluidly communicate with each other or to be blocked from each other according to a magnitude of a force applied by the plunger, and a second opening/closing flow path which allows the second port and the third part to fluidly communicate with each other or to be blocked from each other according to the magnitude of the force applied by the plunger.

Abstract: A valve arrangement for a switching valve and to a switching valve for regulating a mass flow in a refrigerating circuit or a heating circuit, comprising a valve housing, which comprises a feed opening and a discharge opening, comprising a valve piston, which comprises a valve-closing member, which buts against a through-hole between the feed opening and the discharge opening in a closed position on a valve seat and closes the through-hole, wherein the valve seat comprises a stop surface and a sealing surface which are oriented so as to be adjacent to one another, the valve-closing member comprises a supporting surface and a gasket surface which are oriented so as to be adjacent to one another, an elastic sealing element is provided on the valve seat or the valve-closing member, on which sealing element the sealing surface or gasket surface is formed, a sealing projection is provided on the sealing surface or the gasket surface and is oriented towards the opposite gasket surface or sealing surface, the suppor

Abstract: A valve comprising a valve body including a first end and a second end spaced apart along a longitudinal axis, a central portion disposed between the first end and the second end, wherein the first end and the second end define a first flow passageway and a second flow passageway, respectively, and wherein the central portion defines an interior chamber, wherein the first end of the valve body includes a bore, and a removable seat disposed in the bore and defining at least in part the first flow passageway.

Abstract: A valve can include a solenoid coil, a plunger having a core configured to respond to a magnetic field generated by the solenoid coil, and a valve disc. The valve disc can be positioned at a head of the core and configured to cushion impact when the valve is closed. A projection can be positioned and configured to cushion impact when the valve is opened. The valve can be used in an air bed system in fluid connection between an air pump and an inflatable air chamber of a mattress.

Abstract: The present invention refers to a valve actuator device comprising an upper plate and a lower plate facing each other, defining a housing inside which a cylinder with a stem is housed. The stem is connected to a rotor arm by a guiding element inserted and slidably in line between a lower position and an upper position within guiding grooves arranged in the respective upper plate and lower plate. The rotor arm is configured to rotate about a rotation axle arranged in a rotating element formed by two portions: an adapter portion for the connection thereof with the valve stem, and a display portion comprising a visual indicator. The valve actuator device includes a position sensor system for detecting an open position and a closed position.