Abstract: A gate valve with secure sealing mechanism includes a main body having a valve opening, a driver disposed on the main body, a sliding seat slidingly disposed in the main body, a swing arm, and a valve member. Two ends of the swing arm are connected to the driver and the sliding seat, respectively, whereby the driver drives the swing arm to move circularly between a first and second position, thereby triggering the sliding seat to slide. When the swing arm is at the first or second position, the swing arm is biased against the route direction of the sliding seat. The valve member is disposed on the sliding seat for moving in parallel or vertical to the valve opening, thereby preventing the sliding seat from swaying when the swing arm is at the first or second locking position.

Abstract: A pressure regulator for dirty fluid service includes: a body having a chamber, a pair of supply sockets, and an outlet port, each socket and the port formed through a wall of the body; a pair of supply seal plates disposed in the supply sockets and having supply passages formed therethrough; and a sliding seal assembly disposed in the chamber. The sliding seal assembly includes: a seal carrier having a piston and a supply gland; and a supply seal disposed in the supply gland. The piston is disposed in a pilot portion of the chamber. The outlet port and sockets are located adjacent to a regulated portion of the chamber. The piston is operable to move the sliding seal assembly between a supply position and a second position in response to pressure differential between the pilot portion and the regulated portion.

Abstract: A valve comprises a housing, a control handle rotatable relative to the housing, a flow control mechanism in the housing and connected with the control handle, stop seats formed on the housing, a locking body in contact with the control handle, stopping portions formed in the locking body and movable between a locking position in which the stopping portions engage the stop seats and a release position in which the stopping portions are moved away from the stop seats, a control surface formed in the handle. The handle is movable between a lowered position towards the housing and a position raised from the housing. In the raised position, the control surface pushes the stopping portions in the locking position and, in the lowered position, the control surface allows the stopping portions to return in the release position.

Abstract: A valve for metering a flowing, e.g. gaseous or liquid, medium, in particular a fuel injection valve for internal combustion engines, is described, which valve comprises a valve housing having an inflow for the medium, a valve body having a metering opening for the medium, a join present between the valve housing and valve body, and a seal sealing the join. In order to ensure a seal that is reliable and not susceptible to cracking, in which context the material of the valve housing and valve body can be selected without restriction, the seal has a clamping ring, covering the join, that sits with a press fit on end portions, facing toward one another at the join, of the valve housing and valve body.

Abstract: A valve with an opening surrounded by a seat, and a closure member, which, in a closed position, presses onto the seat and closes the opening and, in an intermediate position, is raised from the seat and overlaps with the opening and, in a maximum opening position, at least partially releases the opening. The valve has a first valve drive for moving the closure member between the maximum opening position and the intermediate position along a first movement track, and a second valve drive for moving the closure member between the intermediate position and the closed position along a second movement track which is at an angle to the first movement track. The valve has at least one transmission part which is provided for reversible deformation by the second valve drive, and the first valve drive acts on the closure member with the interposition of the transmission part.

Abstract: An inlet valve assembly for a high-pressure fuel pump is disclosed. The inlet valve assembly comprises an inlet valve member moveable between open and closed positions to control the fuel flow from a source of low-pressure fuel to a pumping chamber of the fuel pump, a first biasing spring arranged to apply a first force to the valve member in an opening direction, a second biasing spring arranged to apply a second force to the valve member in a closing direction, and an actuator arrangement operable to remove the first force from the valve member, thereby to allow the valve member to move into its closed position.

Abstract: A turbomachine, comprising a housing, at least two blade wheels rotatably accommodated by the housing, at least two rotatably arranged blades, which are evenly distributed along a circle of the at least two blade wheels and mounted with an axle parallel to the axis of the corresponding blade wheel. According to the invention, each blade axle is connected to an adjusting element, which can be displaced relative to the shaft of the second blade wheel via a four bar link, which lies in a plane perpendicular to the blade axle and consists mainly of a square arm that is fixed to the axle of the blades, wherein a square arm is articulated to the bottom of the blade wheel, whereas the other end is connected to the end of the first square arm via a connecting axle.

Abstract: Disclosed is a two-way check/bypass valve assembly connected between the hot and cold-water standpipes under the sink that allows convective circulation of hot water from an existing water heater, through the existing hot water distribution pipes, through the valve assembly to the cold water standpipe, through the existing cold water standpipe and distribution pipes, and back into the water heater. The convective water flow is induced by the temperature difference between the hot water in the pipe rising above the water heater, and the slightly cooled, and denser, water flowing back down into the water heater. The valve will allow this low circulation water flow so long as both hot and cold faucets at the outlet are closed, and will prevent any cross flow between the hot and cold pipes under the sink when either the hot or cold faucet is opened.

Abstract: A blind assembly for use in a piping circuit that includes a blind element and an injection system. The blind element has a planar portion that is transversely mounted in the piping circuit to block flow through the piping circuit. When the blind element is installed, it has one or more flat surfaces that are in sealing contact with another component of the piping circuit, such as a flange face, to define a sealing interface. A primary seal is provided between the blind element and the other component of the piping circuit and which circumscribes at least a portion of the sealing interface. The injection system is in communication with the sealing interface, and selectively injects a sealant material into the sealing interface to form a redundant seal in the sealing interface and around the primary seal. An injection fitting can mount to the flange for injecting the sealant.

Abstract: The present invention relates to an insulating material protective cover for a valve unit. The insulating material protective cover for a valve unit, according to the present invention, comprises: a first split body including a first plate, first finishing chassis respectively coupled to both end portions of the first plate in the widthwise direction, and second plates perpendicular to the first plate and respectively coupled thereto; a second split body including a third plate, second finishing chassis respectively coupled to both end portions of the third plate in the widthwise direction, and fourth plates perpendicular to the third plate and respectively coupled thereto; and a third split body including a fifth plate, a second finishing chassis coupled to a first end portion of the fifth plate in the widthwise direction, a first finishing chassis coupled to a second end portion of the fifth plate in the widthwise direction, and a sixth plate perpendicular to the fifth plate and coupled thereto.

Abstract: The subject disclosure provides a balance valve and a vacuum booster. The balance valve includes a valve seat (11), a connecting cylinder (16) and a conic cylinder (17) orderly connected from left to right, wherein the valve seat (11) is annular, a sealing flange (12) is provided on an outer periphery of the conic cylinder (17), a protruded lip (13) for sealing is provided on an outer periphery of the valve seat (11), and the valve seat (11) is provided therein with a via hole (14) for communicating a left surface of the valve seat (11) with a right surface of the valve seat (11) outside the connecting cylinder (16). The vacuum booster having the balance valve can reduce a difference between the starting force and the restoring force, thereby increasing the restoring force while keeping the starting force of the same level.

Abstract: A reprogrammable testing circuit for testing different types of valves may obtain a direction limit for a valve; obtain a test direction input for the valve; determine whether the direction limit of the valve has been reached or when there is an attempt to exceed it based on a current position of the valve, the test direction input, a valve test procedure; run a customized test on the valve in a direction of the direction input based on determining that the direction limit has not been reached; actively comparing the current position of the valve with the direction limit while running the customized test; and discontinue the customized test when the current position of the valve reaches the direction limit.

Abstract: A multilayer insulation is provided. The multilayer insulation includes a plurality of layers of material separated from one another by post elements. The interior of the integrated multilayer insulation can be filled with a selected gas. Moreover, the gas can be held in an interior volume of the integrated multilayer insulation at a pressure greater than ambient pressure, or flowed through the interior volume of the integrated multilayer insulation. The integrated multilayer insulation can be placed directly over an object to be insulated, or over a cellular insulation structure that is placed directly on the object to be insulated.

Abstract: A toilet system with a toilet base including a toilet bowl and a shroud for covering a plumbing riser located at a rear end of the toilet base that provides ligature-resistance for institutional applications. The shroud has a mating feature that joins with a corresponding feature at a rear portion of the toilet base to prevent formation of a gap between the base and a front of shroud in at least at a top side of the area of contact between the shroud and the back of the toilet base. The mating feature can be provided by forming a rectangular cross-section at the rear of the toilet base and providing a matching aperture through the shroud. A toilet seat, which may be bonded or bolted to toilet base has an outer edge that is chamfered to prevent ligature formation around a portion of toilet seat.

Abstract: A control circuit includes a computing unit, which computes a target oil pressure, a duty output unit, which outputs a drive electric current based on a result of computation of the computing unit, and a dither output unit, which applies a dither signal to a linear solenoid. The dither signal is added to the drive electric current outputted from the duty output unit and is applied to the linear solenoid. The dither output unit always applies the dither signal to the linear solenoid throughout an operation. The dither output unit reduces a pulse height of the dither signal in a dead zone in comparison to a pulse height of the dither signal in a control zone. In this way, even when an axial position of a spool is changed between the control zone and the dead zone, the amplitude of dither of the spool can be made generally constant. Thereby, it is possible to limit a change in an output oil pressure.

Abstract: A connector system for medical fluid includes a male connector and a female connector that have a closed configuration when detached from one another. The first end of the male connector is configured to mate with a first end of the female connector. When the male connector is coupled with the female connector, complementary structures engage to move seals away from ports in the male connector and the female connector, opening a fluid pathway through the connectors. The mating ends of the connectors are not exposed to the medical fluid when the connectors are coupled so that when the connectors are disconnected, the mating ends are substantially free of residual medical fluid.

Abstract: A carrying unit for a source of pressurized air having a frame and at least one wheel on the frame through which the frame can be supported upon and moved over a subj support surface. A conduit assembly is part of a pressurized air handling system on the frame and has an inlet for receiving pressurized air from a source and first and second spaced outlets for discharging pressurized air directed through the inlet. The pressurized air handling system further has an air control system that is changeable selectively into different states. By reason of changing states, the air control system causes at least one of: a) a different volume of air from the inlet to be directed to the first and second outlets; and b) a change in a direction of air discharging from one of the outlets.

Abstract: A valve seat device including a valve seat and a seat stiffener, the seat stiffener formed from a non-elastomeric material and positioned on a radially outward-facing surface of the valve seat, an outer diameter of the radially outward-facing surface of the valve seat being greater than an inner diameter of the seat stiffener.

Abstract: An air valve may include a sheet on a panel that serves as a portion of one wall of an air-cooled enclosure. The panel has a first aperture, having a first radius. The sheet may be deformable and resilient, and have a conductive film on one surface and a second aperture. A plurality of leaves lie in a plane parallel to the panel and extend inwardly a particular distance from a perimeter define the second aperture. The perimeter has a second radius equal to the first radius. The particular distance is less than the second radius. The leaves may deform in response to airflow. The second aperture has a first diameter and first depth in an un-deformed state, and a second diameter and second depth in a deformed state. The second diameter and second depth are greater than the first diameter and first depth.

Abstract: The disclosure teaches an adjustable/extendable piping system/module for associating fluid access products (such as fire hydrants) to a buried fluid source. The piping system defines an adjustable configuration that allows for the overall length of the piping system to be modified to compensate for different bury depths. The disclosure further teaches a flex module configured for associating a fluid product with a piping system connected to a fluid source. The flex module is configured to flex a predefined amount to prevent damage to the system from low energy impacts.