Festo Ag & Co. Kg

Festo Se &Co. Kg

Festo Ag & Co

Jakob Brenner

Andreas Dickhoff

Grzegorz Bogdanowicz

Eduard Wenske

Andreas Decker

Ralf Rosenberger

Martin Kilb

Robert Rentz

Thomas Glas

Alexandros Alexandrov

Valve for controlling fluid flows, including a valve housing with a valve bore, in which fluid channels extend from the valve bore to an outer surface of the valve housing, including a first valve member and a second valve member, which are each accommodated linearly moveably in the valve bore. Both the first valve member and the second valve member include a first radial sealing element, which respectively bear in a radially inwardly sealing manner against the first valve member or against the second valve member and in a radially outwardly sealing manner against an inner surface of the valve recess. Each of the first valve member and the second valve member selectively releases and blocks at least one connection between adjacently arranged fluid channels, in which the first valve member is slidably mounted on the second valve member along an axis of movement relative to the second valve member.

Valve for controlling fluid flow

A safety valve which has two fluidically interconnected safety valves, each of which has a 4/2-way valve function. Each safety valve has a first connecting port and a second connecting port, which are connected to each other in such a way that a fluid flow through the two safety valves, controlled by means of a control valve, to a fluid-actuated drive is prevented if the two safety valves simultaneously adopt a first switching position and such a fluid flow is possible if both valves simultaneously have a second switching state. One safety aspect results from the fact that the above-mentioned fluid flow is also prevented if the two safety valves adopt different switching states.

Safety valve device

A sealing system which has an annular seal which is used for sealing between a first member and a second member and which has a base portion, from which there projects axially in the direction towards the second member a sealing lip which ends in an end-side sealing portion which abuts an annular sealing face of the second member in a sealing manner. The annular sealing face has a conical first sealing face portion and a second sealing face portion which adjoins it in a radially outward direction, wherein the portion is formed by the base face of an annular indentation of the second member. The sealing lip tapers in the direction towards the sealing portion thereof and in the position for use thereof is axially compressed by the action by means of the two members and at the same time curved radially inwards. The sealing system is in particular a component of a valve.

Sealing system and a valve provided therewith

A valve means () comprises a valve support () with internal valve support ducts (). Several component mounting sites () are located on the valve support () to be individually fitted with control units (), at least one special purpose control unit () being present, which with an intermediate plate () simultaneously covers over several adjacently placed component mounting sites (). At least one control valve () of the special purpose control unit () is connected with the valve support ducts () opening at the covered component mounting sites () via an intermediate plate duct arrangement () running in the intermediate plate ().

Valve apparatus

A connection device for fluid lines has a housing in which at least one housing recess is formed stepped in the longitudinal direction and merging at an inner end thereof with a fluid duct. An attachment means is fixed in the housing recess and defines a passage opening rendering possible the plugging into position of a fluid line to be connected. A sealing ring is associated with said attachment means. The sealing ring has an inner periphery matching the outline of the fluid line to be connected and being penetrated by the fluid line when connected. A centering section of the housing recess is located axially within the attachment means. An adapter ring is provided able to be inserted into the centering section for bridging over any radial intermediate space present between the outer periphery of the line's end section and the inner periphery of the centering section.

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Esslingen, Germany

Jakob Brenner