摘要:
A volume control device having a housing with an inlet passage, an outlet passage, and an internal chamber communicating with the inlet and outlet passages. An accumulator is movably positioned within the internal chamber and substantially conforms with walls of the internal chamber, the accumulator including an internal passage allowing fluid flow therethrough. An one-way valve is positioned in the internal passage of the accumulator where the valve is biased in a closed position and an adjustable seat is positioned within the housing internal chamber between the accumulator and the housing outlet passage. A positioning mechanism engages the housing and adjustable seat whereby the position of the adjustable seat within the housing internal chamber may be adjustably fixed.
摘要:
The invention relates to a gate valve comprising a valve body (1) with a flow line (8) which can be obstructed by a valve closure member (6) actuated by means of an axially displaceable valve stem (4). In the closed position, said valve closure member (6) is in tight contact with a valve seat (9) arranged inclined relative to the flow direction. The gate valve is characterized in that the nominal width and overall length of said valve body (1) correspond to the dimensions defined by the standards relating to wafer-type fittings.
摘要:
Apparatuses to control a fluid flow characteristic of fluid regulator bypass valves are described. An example apparatus includes an insert having a body sized to be inserted in a passage of a bypass valve. The body includes an opening to fluidly couple a bore of the body to an outer surface of the body. The opening being shaped to produce a predetermined flow characteristic in response to at least a portion of a restrictor of the bypass valve moving relative to the opening to vary a fluid flow through the opening and the bypass valve.
摘要:
The invention discloses an angle seat geometry for a valve seat (3) in a fitting housing (1) having an inlet and an outlet, wherein provision is made of a metallic closure part (2) of conical configuration on the outer contour thereof, wherein the valve seat is formed in the metallic housing as an intersection of three cones, wherein two cones are positioned in a through opening in the fitting housing in such a way that the valve seat is in the form of a marginal seat, and wherein the components of the seat are produced by means of laser melting.
摘要:
A valve for a pressurized container is described. The valve housing has a central bore, a port in said housing to facilitate connection of a nozzle thereto, and a t-stem having a lower end with an opening. A two part poppit is positioned in the t-stem for sealing the valve. The has an elastomeric valve seat portion and a support portion for the valve seat. The support portion includes a shaft that is received in an opening of the lower end of the t-stem.
摘要:
Das Ventil weist ein Ventilgehäuse (2) mit einem Ventileinlaß (11) und einem Ventilauslaß (12) und einem Durchlaßkanal auf, der sich durch das Ventilgehäuse (2) hindurch zwischen dem Ventileinlaß (11) und dem Ventilauslaß (12) erstreckt. In dem Durchlaßkanal ist ein Ventilsitz (5) mit einer Ventildichtfläche (50) angeordnet. Ferner weist das Ventil einen Absperrkörper (3) auf, der zum Absperren des Durchlaßkanals durch Anlage an der Ventildichtfläche (50) zumindest teilweise in den Ventilsitz (5) hinein bewegbar ist, und zwar entlang einer Bewegungsrichtung, die in einem spitzen Winkel zu derjenigen Ebene verläuft, in der der Ventilsitz (5) angeordnet ist. Die Ventildichtfläche (50) des Ventilsitzes (5) ist ballig ausgebildet.
摘要:
Bei diesem Hubventil ist die heb- und senkbare Spindel (4) mittels einer Kugelbuchse (7) so kippbeweglich an dem Gehäuse abgestützt, daß sie Verlagerungsbewegungen des von ihr getragenen Ventilstückes (15) bei dessen Suche nach einem Dichtsitz auf dem Ventilsitz (2) folgen kann. Die Spindel (4) wird dadurch in der Ventilschließstellung ausschließlich axial durch die Schließkräfte beansprucht. Die Dichtung (6) zwischen dem vom Medium durchströmten Bereich und dem oberen Gehäusebereich ist so ausgestaltet, daß sie etwaigen Kippbewegungen der Spindel ohne Verlust der Dichtigkeit folgen kann. In diesem Sinn ist die Spindelmutter (9) im oberen Teil (1b) des Gehäuses mit seitlichem Spiel (11) gehalten.