Abstract: A generally cylindrical restrictor insert for containing an axially movable, apertured restrictive member, housed in a flow control distributor housing of an orifice expansion device used for bi-directionally-flowing pressurized fluid, with a housing passageway being closed off via an annular adaptor flange also having an internal filter, the restrictor insert having a central axial through bore with a plurality of adjoining bore portions defining a central bore cavity, the restrictor insert also having a leading portion, with a frusto-conical front end surface, and intermediate and trailing portions, the latter having a shoulder portion and an annular end face, the restrictive member being located and axially freely movable within a distributor housing central bore cavity, with the restrictor insert, in turn being located, via slip-fit insertion, in a distributor housing central passageway.

Abstract: A valve for use in regulating the flow of fluid between a first fluid side and a second fluid side of a hydraulic circuit. A bore is extended through a valve seat, and the bore and valve stem cooperate to form a fluid passage from the first side to the second side. A plurality of ribs are located on one side of the valve seat and extend in a direction generally parallel to the bore.

Abstract: A gas-regulating unit for regulating an internal gas pressure in a gas-tight liquid-storage tank is mounted on the gas-tight tank in which stored liquid is sealed from outside atmosphere by covering a top surface of the stored liquid with an isolating-gas. The gas-regulating unit includes a main gas-exhausting unit and an isolating-gas regulator. The main gas-exhausting unit includes an exhaust valve for opening and exhausting gases from the gas-tight tank when an internal gas pressure in the gas-tight tank increases to more than a specified level. The isolating-gas regulator supplies the isolating-gas when an isolating-gas pressure decreases to less than a specified level. The main gas-exhausting unit and the isolating-gas regulator are integrally coupled with each other.

Abstract: The invention relates to a pressure valve with a flow passage (3) having a valve body (14) and a lifting plate (21) that has a surface area A2 transversally of the flow passage (3) that exceeds the cross sectional area A1 of the flow passage (3) at the valve seat (13) of the valve body, said pressure valve being configured such that, at any time, the container is in communication with the area above the lifting plate (21). The invention is characterised in that the pressure valve also comprises a magnet (8) and a magnetisable body (9); and that the force of attraction Fm between the magnet (8) and the magnetisable body (9) and the mass of the lifting plate (21) contributes to defining the abutment force Fc, of the valve body (14) against the valve seat (13) in the closed state of the pressure valve.

Abstract: The invention relates to a combined check and pressure control valve (10), comprising a check valve element (34) which is adjustable between an opened position and a closed position, and a pressure control valve element (42) which on exceeding a predetermined pressure can be lifted off a valve seat (40), so that at least one outflow channel is opened, characterized in that the check valve element (34) is a valve plate which in the closed position lies against at least one annular sealing seat (30, 32), which is impressed in a thin-walled component, preferably a sheet metal part (22).

Abstract: A damper valve includes a valve member for covering openings of communicating passages of a valve sleeve. The valve member is elastically deformed by a low flow rate of the hydraulic oil flowing from a second chamber to a first chamber of the valve sleeve and when a flow rate of the hydraulic oil flowing from the second chamber to the first chamber exceeds a predetermined value, the valve member is moved with the spool against urging force of a spring to widely open the openings of the communicating passages.

Abstract: A valve apparatus that includes surge relief includes a valve housing having an inlet port, an outlet port, and a poppet seat between the inlet port and the outlet port. The valve also includes a first moveable poppet piece having a closed position against the poppet seat that closes the valve. At least one surge discharge port passes through the first moveable poppet piece. The valve also includes a second moveable poppet piece compressionally biased in a position to seal the fluid discharge port or ports in the first moveable poppet piece. The second moveable poppet piece is responsive to a surge pressure when the valve is closed to unseal the surge discharge port or ports temporarily to relieve the surge pressure.

Abstract: A sealing valve arrangement (12) for a container containing a fluid, wherein a supporting element (14) comprising a control channel (15) in the border region of the supporting element (14) and a securing element (16) comprising a passage channel (18) are disposed on top of one another over the fluid storage (13′) of the container. A sealing valve (1) having smaller radial dimensions than these elements (14, 16) and a valve channel (2) for connecting the control channel (15) and the passage channel (18) are provided between the supporting element (14) and the securing element (17), wherein the sealing valve (1) comprises a first sealing surface or edge (5) for sealing the passage channel (18) from the control channel (15) and a second sealing surface or edge (8) for sealing the valve channel (2) from the control channel (15). The sealing valve (1) operates in case of pressure above atmospheric and sub-atmospheric pressure within the fluid storage (13′).

Abstract: A gauge hatch is provided that has a cover structure that incorporates a pallet/diaphragm combination and that is cooperatively associated with a pressure responsive liquid seal subassembly. The gauge hatch also incorporates a vent neck and a radially adjacent wall that defines with the vent neck a circumferentially extending reservoir. An exterior preferably radially extending arm permits the cover structure to be opened and inclined at an angle relative to the vent neck. Optionally, the cover may be kept in a closed position. The diaphragm normally seats upon the vent neck. A sealing liquid in the reservoir has a closed chamber over the reservoir liquid. When the arm is not held in a cover closed position, and up until a set vent neck pressure is reached, the liquid seal subassembly eliminates low level fugitive vapor emissions escaping from the diaphragm/seat region.

Abstract: In a damping valve for pressure medium-actuated operating circuits, a spring element is installed between housing, cover and counter-contour. In the opening direction, the spring element is pressed against the counter-contour by the pressure medium flowing through, so that a flow passage cross-section allowing almost unimpeded passage of the pressure medium is obtained. In the opposite direction, the throttling direction, the spring element rests on the cover and blocks the flow of the pressure medium until a well-defined pressure builds up, which lifts the inner side of the spring element from the counter-contour and thus opens a reduced flow passage cross-section.

Abstract: Disclosed is a safety valve installed in a tank of a vessel carrying oil or chemical substance to discharge supersaturated gas produced in the tank and to adjust an internal pressure to a normal level when a negative pressure is produced in the tank. The valve comprises a lower body; an upper body mounted onto the lower body; a valve stem extended from the upper body to the lower body; and a disc provided on the valve stem and positioned between the upper and lower body to shut out a communication between the upper and lower body. The disc has a groove on an underside thereof, with a protruded portion being formed along an edge of the disc, a Teflon bushing is interposed between the disc and the valve stem, and the disc has a large diameter than an internal diameter of the lower body.

Abstract: A storing device is disclosed having a gas-sealing device and/or a heating device provided for a pipe connecting a storing tank for an easily polymerizable and/or coagulating liquid substance and a liquid sealing implement-protecting device. A method for the control of the pressure in the storing device is also disclosed. This invention contemplates protecting a storing device against deformation and fracture.

Abstract: A vent valve for use with a fuel containing system including a fuel tank and a vapor recovery system. The vent valve includes a housing which communicates with the fuel tank and the vapor recovery system. The housing defines a path between the fuel tank and vapor recovery system. A float valve is positioned in the housing and is responsive to the presence of fuel in the tank. The housing has at least one vacuum vent positioned in the path. An umbrella valve is carried on the housing and positioned between the fuel tank and the vapor recovery system. The umbrella valve has a wall defining an orifice extending therethrough and a cover portion extending from the wall. The orifice is selectively sealed at one end by the float valve and is selectively sealed at the opposite end by the head valve.

Abstract: An hydraulic system that includes a master cylinder, a slave cylinder, a fluid conduit extending between the cylinders, and a pressure relief valve within the conduit between the cylinders. The pressure relief valve includes at least one port that is closed by an elastic member that overlies the port and that opens when fluid pressure acting through the port exceeds a predetermined level to cause the elastic member to open the port.

Abstract: A casing accommodates therein a movable valve adapted to be moved away from a valve seat by a hydraulic oil flowing through an oil-hydraulic circuit from a hydraulic cylinder to an oil-hydraulic pump. In an event of oscillatory hydraulic pressures in the hydraulic cylinder, the hydraulic oil is returned through the oil-hydraulic circuit from the hydraulic cylinder to the oil-hydraulic pump via a second port, a communication path, a minor gap between the movable valve and the valve seat, and a first port. In this process, the communication path allows for a smooth flow of the hydraulic oil from the second port into the movable valve.

Abstract: Disclosed is a safety valve installed in a tank of a vessel carrying oil or chemical substance to discharge supersaturated gas produced in the tank and to adjust an internal pressure to a normal level when a negative pressure is produced in the tank. The valve comprises a lower body; an upper body mounted onto the lower body; a valve stem extended from the upper body to the lower body; and a disc provided on the valve stem and positioned between the upper and lower body to shut out a communication between the upper and lower body. The disc has a groove on an underside thereof, with a protruded portion being formed along an edge of the disc, a Teflon bushing is interposed between the disc and the valve stem, and the disc has a large diameter than an internal diameter of the lower body.

Abstract: A hydraulic system for a motor vehicle has at least one pressure restricting valve with a housing that has two or more connections. At least one conduit cross-section in the housing can be closed by means of a closing body that is movable axially against the action of an energy accumulator. At least a part of the axial travel of the closing body is damped by means of a damping device.

Abstract: A container equipped with a rupturable retaining seal which, when broken, forms a spout from which the contents of the container may be poured. The rupturable seal is secured along its peripheral edge to the top opening of the container and contains a pinpoint hole at its epicenter. Arranged serially about the pinpoint hole in spoke-like fashion, are an impressed pattern of separable incisions which, when pressure is applied, separate and form an opening from which the contents of the container can be poured.

Abstract: An inflation and deflation device for an inner tube and an inner tube provided with this device are described. The inner tube is elastically expandable for the introduction of fluid into its internal volume and can be housed in the space between tire and rim, which can be isolated from the external environment at atmospheric pressure. The device does not have elements for connecting the internal volume of the inner tube and the environment outside the wheel.

Abstract: A device for inflating and deflating a flexible container which is elastically expandable for introduction of pressurized fluid into an internal volume of the container is described. The device is housed inside a cavity isolable from a surrounding environment, the device being inserted in a wall of the container. Pressurized fluid can flow from the surrounding environment into the cavity and from the cavity out to the surrounding environment. The device does not have elements for connecting the internal volume of the container and the surrounding environment.

Abstract: A integrated assembly form a parallel arrangement of a relief valve, an orifice and a check valve. A body has a first flange with a perimeter surface that engages a wall of a bore in which the assembly fits. An number of apertures extend through the flange. A second flange extends from the body and has an annular lip which defines a recess cavity at one end of the body. The body has a passage extending between the other end and the recess. A check valve member is slidably mounted on the body and closes the aperture when pressure adjacent the second end is greater than pressure adjacent the first end. A plurality of disks are mounted on the body and engage the annular lip to form an orifice between the disks and the lip. The disks disengage the annular lip when pressure in the bore adjacent to the second end is greater than predefined level.

Abstract: A damping valve comprising a one-piece damping-valve body with axial through-passages for each direction of flow, at least one side of the damping-valve body having arranged on it at least one valve disk that at least partially covers an outlet opening of a through-passage, the damping-valve body having a radial inflow opening to the through-passages. The outlet openings of the through-passages for a first direction of flow on one side of the damping-valve body have a trapezoidal cross section, and the outlet openings of the through-passages for a second direction of flow on the other side of the damping-valve body open into a common encircling annular channel. The through-passages with outlet openings with the trapezoidal cross section are arranged on a larger pitch circle than the through-passages that open into the annular channel.

Abstract: A damping valve comprising a one-piece damping-valve body with axial through-passages for each direction of flow, at least one side of the damping-valve body having arranged on it at least one valve disk that at least partially covers an outlet opening of a through-passage, the damping-valve body having a radial inflow opening to the through-passages. The outlet openings of the through-passages for a first direction of flow on one side of the damping-valve body have a trapezoidal cross section, and the outlet openings of the through-passages for a second direction of flow on the other side of the damping-valve body open into a common encircling annular channel. The through-passages with outlet openings with the trapezoidal cross section are arranged on a larger pitch circle than the through-passages that open into the annular channel.

Abstract: A mixing adaptor enables a material to be transferred from a first delivery means to a second delivery means and enables another material to be transferred from the second delivery means to the first delivery means. The adaptor has (i) a hollow main body having a first end, a second end, an interior surface and an exterior surface; and (ii) a septum positioned within the interior surface of the main body. A first channel is defined by a first portion of the interior surface of the main body and by a first side of the septum. The first channel has a primary opening at the first end of the main body and a secondary opening at the second end of the main body. A second channel is defined by a second portion of the interior surface of the main body and by a second side of the septum. The second channel has a primary opening at the second end of the main body and a secondary opening at the first end of the main body.

Abstract: The check valve has rotationally symmetric outer boundaries with a transverse plate separating a first portion which is intended to be within a first air space and a second portion which is intended to be within a second air space. Two internal passageways are formed within the interior of the check valve, each with an opening in the first portion and another opening in the second portion. The first and second portions each include a circular channel with flared walls into which one of the openings is formed. Each circular channel includes an O-ring which serves as a valve to control flow into the respective internal passageway.

Abstract: A valve device for a storage tank for transporting oils or chemical compounds, includes an upper body having a V-shaped valve seat at an upper end thereof. At least one screw hole with a closing cock is provided in the upper body. A lower body connected to the upper body, has an enforcing frame forming a plurality of pathways between connection spokes. A stem having a three-stepped rod extends over the valve seat. A disc is coupled to a flange by a ring by bolts. The flange is supported by a plurality of spokes to a bush fixed to the rod. Hammering prevention discs are fixed to a middle portion of the rod as is a weight connected below the discs. Bushings are between the discs and all are hold to the rod by a lock nut. A cap having a main hole receives the bottom end of the stem rod and two more holes in the cap communicate with the hole to allow the bottom end of the rod to move in the cap.

Abstract: A mixing adaptor enables a material to be transferred from a first delivery means to a second delivery means and enables another material to be transferred from the second delivery means to the first delivery means. The adaptor has (i) a hollow main body having a first end, a second end, an interior surface and an exterior surface; and (ii) a septum positioned within the interior surface of the main body. A first channel is defined by a first portion of the interior surface of the main body and by a first side of the septum. The first channel has a primary opening at the first end of the main body and a secondary opening at the second end of the main body. A second channel is defined by a second portion of the interior surface of the main body and by a second side of the septum. The second channel has a primary opening at the second end of the main body and a secondary opening at the first end of the main body.

Abstract: A mixing adaptor enables a material to be transferred from a first delivery means to a second delivery means and enables another material to be transferred from the second syringe to the first delivery means. The adaptor has (i) a hollow main body having a first end, a second end, an interior surface and an exterior surface; and (ii) a septum positioned within the interior surface of the main body. A first channel is defined by a first portion of the interior surface of the main body and by a first side of the septum. The first channel has a primary opening at the first end of the main body and a secondary opening at the second end of the main body. A second channel is defined by a second portion of the interior surface of the main body and by a second side of the septum. The second channel has a primary opening at the second end of the main body and a secondary opening at the first end of the main body.

Abstract: A high pressure reciprocating pump (10) for high fluid pressures between 30,000 and 60,000 psi and having a valve cartridge (57) positioned within a manifold block (15) of the pump (10). The valve cartridge (57) has a fixed body (58) with a plurality of equally spaced suction opening (69) extending therethrough. A central bore (70) of the valve cartridge body (58) has a valve assembly (72) mounted therein. Valve assembly (72) include a discharge valve member (74) and a suction valve member (80) mounted for sliding movement about the outer surface of discharge valve member (74). A spring (84) biased between discharge valve member (74) and suction valve member (80) continuously urges the valve members (74, 80) toward closed position. On the suction stroke, suction valve member (80) is opened and fluid through suction openings (69) enters the pump chamber (37).

Abstract: A pressure-dependent valve, for use with an adjustable vibration damper comprising a piston rod arranged in an axially movable fashion in a cylindrical tube filled with damping fluid, is controlled by a pressure transducer pressurized via a pressure connection opening. The pressure-dependent valve includes a valve body axially movable relative to a valve surface. The valve body and valve surface together determine a valve passage cross-section. The pressure transducer is float-mounted in a pressure space and supported by at least one spring. One of the valve parts determining the valve passage cross-section is movable relative to the current position of the pressure transducer by an adjustment device.

Abstract: A check valve module includes a body having a first fluid communicating surface and a second fluid communicating surface, and two one-way check valves in the body controlling flow between the first and second surfaces. One of the valves permits flow from the first surface to the second surface, and the other valve permits flow from the second surface to the first surface. The body also has an outer sealing surface between the first and second fluid communicating surfaces.

Abstract: A pressure relief valve includes a valve housing and a drop-shaped body with a conical valve surface that cooperates with a conical valve seat at an upwardly directed blow-off opening of the valve housing. The drop-shaped body is connected to a lifting disc in the housing. The inner configuration of the housing provides an annular passage around the lifting disc which is smaller in area when the lifting disc (and drop-shaped body) is in its uppermost, fully open positioning as compared to its lowermost, closed positioning.