Abstract:
Eine Fluid durchströmte Vorrichtung (2) zur Rohrbruchsicherung weist zwei oder mehr Strömungskanäle (24, 26) sowie ein Schließelement (10) auf, welches bei Überschreiten eines zulässigen Volumenstroms das Durchströmen des Fluids unterbricht. Mindestens einer der Strömungskanäle (24, 26) kann durch einen Prüfverschluss (34, 56, 64, 70) geschlossen werden, um die Strömungsgeschwindigkeit in den verbleibenden Strömungskanälen (24, 26) zu erhöhen und zu Prüfzwecken ein Bewegen des Schließelements (10) in die Schließstellung zu erzwingen. Dadurch können etwa Vorrichtungen (2) zur Rohrbruchsicherung bei komplexen Fluid durchströmten Systemen in situ auf ihre ordnungsgemäße Funktion überprüft werden.
Abstract:
A backflow preventor that generally includes a modular fluid arrangement having a modular strut, a one-piece modular cage, a relief valve fluidly connected to the modular cage, and at least one in-line check valve removably housed in the modular cage. In operation, when backflow occurs, pressure in a chamber of the relief valve increases to provide a passageway for fluid to flow out of the modular cage, through the relief valve, to the environment. When the backflow stops, the pressure in the chamber decreases and the passageway closes, moving the fluid through the interior of the modular cage.
Abstract:
A suction valve coupling structure for a reciprocating compressor is disclosed in which a piston being linearly moved in a cylinder upon receipt of driving force from an electric mechanism unit, according to which a gas flows through a gas flow passage formed therein, is coupled by welding to a valve for opening and closing the gas flow passage, thereby strengthening the coupling state of the suction valve. Since the coupling structure is simplified, a dead volume is reduced and a stroke volume is increased, improving compression efficiency. A stroke control of the piston is facilitated to enable a precise control of movement of the piston. In addition, a reliability of the coupling of the suction valve can be improved.
Abstract:
A valve assembly (10) is to be used in conjunction with a tubular member having an internal surface surrounding a passage into which the valve assembly is to be sealingly inserted. The valve assembly includes a tubular body (25) having a longitudinal passage and an outer surface to be located adjacent the internal surface. A seal (29) is mounted on the outer surface to engage the internal surface to sealingly connect the tubular body with the tubular member. A movable valve member (33) is movable between an open position providing for the flow of water from an upstream end to a downstream end of the passage of the tubular body and a closed position closing the passage. Resilient means, such as a spring (34) urges the valve member to the closed position. The resilient means is configured to provide for displacement of the valve member toward the open position when pressure beyond a predetermined pressure is applied upon the movable valve member.
Abstract:
A projected connection section (32) to be connected with a socket (S10) is provided at a plug body (31) of a plug (P10), and a valve seat (33) is provided in the plug body. A valve body (35) having a valve head (35a) that is urged to the valve seat (33) to seal it is placed in the plug body (31) and the projected connection section (32). Break-off start sections (71, 72) are arranged at at least portions of the projected connection section (32) and/or a valve stem (35b). The break-off start sections (71, 72) previously determine Positions where a break-off occurs when a force exceeding a normal use range is applied are determined in advance by the break-off start sections (71, 72), and even if the break-off occurs, sealing between the valve seat (33) and the valve head (35a) can be maintained.
Abstract:
A double check valve reduced pressure backflow preventor assembly is configured to have a relatively small length, volume and/or weight. The assembly defines parallel, preferably coaxial, inlet (112) and outlet (128) directions. In one aspect, axis (312) of first and the axis (314) of second check valves are at an angle, preferably of 90 degrees, to the in-line axis (110). In one aspect, a relief valve (134) is positioned spaced from the in-line axis (110). First (718a) and second stop valves (718b) are enclosed in the same integral, unitary housing (142) which encloses the check valves and, preferably, some or all of the relief valve (134). The shutoff valves (718a, 718b) are preferably positioned along the in-line axis (110).
Abstract:
One embodiment relates to an automatic fluid flow control device (1) for a fluid supply, the device comprising: an actuator (41) that carries or includes a magnet (43), the actuator being movable within a housing (3) from a first position corresponding to a normal fluid supply to a second position corresponding to a fluid oversupply, wherein the actuator (41) is removable from the housing (3) to enable the device to be cleaned, and the housing and actuator are configured so that the actuator can only be accommodated in the housing in an orientation that enables said magnet to exert a magnetic force to close a valve in said fluid supply as said actuator moves from said first to said second position.
Abstract:
Microfluidic shunt valves are disclosed having a deflectable element capable of being held in a closed position to occlude the passage of fluid between an inlet and outlet and, when not held in the closed position, the deflectable element is adapted to oscillate in response to fluid pressure pulses and thereby facilitate fluid passage through the valve. Controls for activating the deflectable element to permit fluid passage are also included.
Abstract:
Die Erfindung betrifft ein Ventil, das in eine Aufnahmeausnehmung (21) eines Ventilträgers (22) einsetzbar ist, wobei das Ventil (1,) ein erstes Gehäuseteil (2,) und einen Schließkörper (4) umfaßt. Der Schließkörper (4) wirkt mit einer Dichtfläche (9) zu einem Dichtsitz zusammen, wobei das Ventil (1,) mittels des ersten Gehäuseteils (2,) in der Aufnahmeausnehmung (21) des Ventilträgers (22) fixierbar ist. Ein zweites Gehäuseteil (3,) ist mit einem ersten Ende (7) mit dem ersten Gehäuseteil (2,) verbindbar und die mit dem Schließkörper (4) zusammenwirkende Dichtfläche (9) ist an dem zweiten Gehäuseteil (3,) ausgebildet.
Abstract:
The invention relates to a pressure valve (1), especially for a piston pump provided for conveying a pressure medium in slip regulated hydraulic brake systems, whereby the pressure valve (1) comprises a valve seat body (10) and a valve cover body (11). A preloading element (12, 12', 12'') and a valve element (13) are provided in the chamber (19) which is formed between the valve seat body (10) and the valve cover body (11). The aim of the invention is to provide a pressure valve which can be economically produced, can be easily assembled and which is exceptionally reliable. To this end, the valve seat body (10) and/or the valve cover body (11) are produced without cutting.