Abstract: A diaphragm valve includes a valve housing in which a switching rocker, which is pivotable about a pivot axis and which interacts with a control diaphragm for opening and closing at least one valve channel, is arranged. The pivot axis is defined by a mounting web, on which the switching rocker bears in a pivotably movable manner. The mounting web is an integral constituent of a mounting unit, said mounting unit being fastened to the valve housing in a drive chamber by way of fastening measures. Without the fastening measures, the mounting unit can be displaced in order to adjust a desired height distance of the mounting web.

Abstract: A jet valve has a medium passage that leads to a discharge opening and that is closable by a sealing element that can be set against a seal seat. The seal seat has a sealing surface in the form of an annular strip. The jet valve has a high service life and is suitable for metering very small quantities.

Abstract: The present disclosure relates to a DBB forced sealing valve and an operating mechanism, including a valve body, a valve seat, a valve core arranged in the valve body, upper sealing member driving part and lower sealing member driving part arranged in the valve body and located on either side of the valve core, and the sealing members arranged between the valve seats and the upper sealing member driving part and the lower sealing member driving part. Wherein, the upper sealing member driving part and the lower sealing member driving part can move along the rotation axis of the valve core, and the upper sealing member driving part and the lower sealing member driving part drive the sealing members to press against or to retract from the valve seats.

Abstract: A split body, rotary C gate, removeable stem vacuum valve using an input assembly with handle extensions that allow for hand movement of the incoming pipe to access an inner aperture body with a curved sealing face that directly seals to a C shaped gasketless gate that can be rotated into and out of the inner body aperture for easy cleaning. The gasketless gate is held in position using gate axles with an outer axle stem connected to a polygon lower body that mates into a matching polygon aperture on the gasketless gate. The middle valve assembly's gasketless housing body defines upper and lower axle washer pockets for locating the axles for proper operation and simple axle pins for securing the axles in position.

Abstract: A Y-globe valve assembly includes a valve body having a neck portion defining a chamber with a circumferential wall and an integrated pressure relief passageway formed in the circumferential wall and communicating between the chamber and a flow passageway downstream of a valve port. A valve includes a core having an outer surface spaced radially inwardly from the circumferential wall of the valve body so as to define an annular space therebetween. The pressure relief passageway is in fluid communication between the annular space and the flow passageway upstream of the valve port when the valve is in at least the open position.

Abstract: Fluidics offers a means of distributing power to activate elements remote from the power source as the pressure/fluid flow may be used directly to generate an action and/or motion without requiring an additional transducer, e.g. a motor to convert electric power to mechanical power. Prior art pumps, valves, and switches are bulky devices with high power consumption limiting their use in many portable battery-operated consumer and non-consumer devices. Accordingly, it would be desirable to provide designers of such products with hydraulic valves and switches to support and provide configurability, programmability, and operation of these devices in conjunction with compact high efficiency pumps to provide devices meeting the market requirements for low footprint, complexity, low power, and low cost.

Abstract: In a double eccentric valve, a valve seat or valve body includes a rubber seal part in which a seat surface or seal surface is formed. An interference between the valve seat and the valve body is made minimum at a position of a rotary-shaft-directional end of the valve body in the radial direction of the valve body which is parallel to an extending direction of the axis of a rotary shaft.

Abstract: A liquid control valve including a body comprising an inlet port, an outlet port, and an interior chamber, the body defining a liquid passageway between the inlet and outlet ports. Also included is a plunger comprising a groove provided on an external wall, the plunger being configured to reciprocate within the interior chamber of the body between a first position where the valve is closed and a second position where the valve is open. Also provided is a sealing arrangement within the groove configured to seal between the plunger and the interior chamber of the body. The sealing arrangement includes a first sealing element on the external wall of the plunger and spaced apart from an inner wall of the internal chamber, and a second sealing element on the inner wall of the internal chamber and spaced apart from the external wall of the plunger.

Abstract: A check valve, including a valve and a valve support surface, to permit a fluid to move through the check valve in a first direction and resist a fluid flow through the valve in a second direction, the valve having a valve diaphragm and an isolating bridge, with a portion of the valve engaging against valve support surface to resist deformation or stretching of the valve when a backflow of fluid into the check valve occurs. The valve support surface having a first support surface and a second support surface, and the valve positioned with the valve diaphragm spaced apart from the first support surface, and the isolating bridge spaced apart from the second support surface.

Abstract: A system having a material sensor system coupled to a material tank is provided. The material tank is configured to receive a quantity of the material and output a flow of the material. The material sensor system includes a float system coupled to an inner surface of the material tank. The float system includes a float configured float within a float cavity. The material sensor system includes a switch coupled to an outer surface of the material tank. The switch is communicatively coupled to the float system through a wall of the material tank, and the switch is configured to send one or more signals to a control system when the float engages the switch.

Abstract: An improved gas vent having a body defining a float chamber. A float is positioned within the float chamber. The float chamber defines a passageway for gas to flow from an first port to an outflow port. A float is positioned within the float chamber. The float is configured to move toward a closed position as the fluid level within the float chamber increases. As the fluid level increases the float raises and seals against an interior of the gas vent, preventing further fluid flow through the vent. A shield is positioned between the float and the first port. The shield is configured to deflect gas flow around the shield and float to prevent the float from raising prematurely in response to high velocity gas flow on the float.

Abstract: Various valves capable of preventing distortion are disclosed. The valve comprises a metal member configured to have at least two sub metal members and a main body. Here, the sub metal members are included in the main body, and the main body is formed of plastic.

Abstract: Valve trim and related methods are described. An example valve trim includes a cage defining a body having a bore to receive a valve plug. The cage includes a first passageway through a side surface of the body. The first passageway has an axis that is non-parallel relative to a longitudinal axis of the bore. A valve seat is to receive the cage. The valve seat has a first projection defining a first opening. The cage to be positioned relative to the valve seat in a first orientation to align the first opening and the first passageway to provide a first flow characteristic. The cage to be positioned relative to the valve seat in a second orientation to offset an alignment between the first projection and the first passageway to provide a second flow characteristic different than the first flow characteristic.

Abstract: Methods, apparatus, and systems for valve trim apparatus for use with control valves are disclosed. An example apparatus includes a valve body including a fluid flow path between an inlet and an outlet. The example apparatus also includes valve trim positioned in the fluid flow path, the valve trim including first passageways that extend from the inlet to a first expansion cavity and second passageways that extend from the first expansion cavity to the outlet.

Abstract: A knife gate valve with an interior channel divided by an interior channel configured to receive a valve gate, the valve gate can travel along the interior channel. A removable first wear ring is disposed on the upstream side of the interior channel, the first wear ring substantially lining the upstream side of the interior channel; and a removable second wear ring disposed on the downstream side of the interior channel, the second wear ring substantially lining the downstream side of the interior channel; a first retainer ring adjacent to the gate on the upstream side of the valve; and a second retainer ring adjacent to the gate on the downstream side of the valve is disclosed. Other embodiments are also shown.

Abstract: A passive explosion isolation valve (10) is provided that comprises vertically-oriented gate members (40, 42) configured to close automatically in response to an energetic event occurring downstream of the valve. The valve (10) may be optionally equipped with a valve seat cleaning assembly (46) configured to removed accumulated particulate material away from the area of the valve seat (48) and/or one or more latch assemblies (44) configured to secure the gate members (40, 42) in the closed position following closure of the valve (10) in response to an energetic event.

Abstract: This invention relates to coupling devices, particularly to coupling devices for use with pressurized substances, for example, fluids such as liquids, gases, and plasmas; drive assemblies for said coupling devices; and to methods of supplying substances. The coupling device comprises a housing defining a chamber, the housing comprising inlet, outlet, and re-circulation/vent apertures; a valve assembly disposed in the chamber, the valve assembly comprising a valve; and a drive assembly located in the housing and operatively engageable with the valve assembly, wherein the drive assembly comprises a drive member disposed in the chamber; and a second cam member operatively engageable with the drive member and the valve assembly, wherein the second cam member is configured to be displaced by the drive member to cause the operation of the coupling device between uncoupled and coupled conditions, and the valve between the re-circulation/vent and charge conditions in a synchronized fashion.

Abstract: A feed device for an immersion medium for use with an objective enabling a specimen to be imaged microscopically includes a cap fitted releasably or fixedly to the objective and delimiting a receptacle space for the immersion medium. The cap has an exit opening aligned with an optical element of the objective facing the specimen. The immersion medium held in the receptacle space is feedable through the exit opening to a target space situated between the optical element of the objective and the specimen. A sensor is integrated in the cap and has an electrode structure configured to detect an amount of the immersion medium fed through the exit opening to the target space. The electrode structure at least partly encloses the exit opening and has a spatial detection region extending away from the exit opening in a radial direction.

Abstract: Embodiments provide a surge suppression device, a surge suppression system, and methods for operating the same. The surge suppression device includes a valve body and a plug. The plug is rotatably positioned in a hollow space of the valve body. The plug includes two surge suppression openings defining a fluid flow directed to surge suppression. Each of the two surge suppression openings includes a circular plate having a plurality of orifices. The plurality of orifices allows reduction of surge pressure when the water passes the first fluid flow path. The circular plate has a concave or convex geometry.

Abstract: A washer fluid delivery system includes a washer fluid reservoir having a first zone with a first low point and a second zone with a second low point. A first valve is disposed in the first zone. The first valve is moveable back and forth between a flow permitting position and a flow restricting position in response to an amount of washer fluid within the first zone. A second valve is disposed in the second zone. The second valve is moveable back and forth between a flow permitting position and a flow restricting position in response to an amount of washer fluid within the second zone. A pump operates to draw a washer fluid from the first zone when the first valve is in the flow permitting position, and to draw a washer fluid from the second zone when the second valve is in the flow permitting position.