Friatec Aktiengesellschaft

Friedrichsfeld Gmbh, Keramik-und Kunststoffwerke

Wolfgang Sichler

Fabian Maier

Alexander Rothermel

Simon Schwartz

Harald Schmitt

Dirk Elsasser

Heiko Gehr

Michael Schneider

Ralf Schmich

Gerhard Mueller

Reinhold Scholl

Matthias Fastanz

Steffen Kretz

Ruediger Schweitzer

Rolf Vogel

The invention relates to a shut-off device comprising a housing which is to be connected to an adjacent conduit in a pressure-tight manner. A tubular passage is defined in the housing for a medium flowing through the conduit. Said device also comprises at least one sealing body which can be displaced by an articulated mechanism, by means of an adjusting drive that can be moved vertically in relation to the direction of flow, from an open position into a closed position in which the sealing contour of the at least one sealing body comes into contact with the tubular passage in a radially sealing manner. The articulated mechanism is guided parallel to the direction of displacement of the adjusting drive and comprises a bearing body to which the at least one sealing body is pivotably applied. The inventive shut-off device is characterized in that the bearing body comprises two diametrically opposed ribs and two corresponding grooves are formed in the wall of the housing or in an insert at least partially lining the housing, the ribs forming a span extending transversally to the direction of flow of the medium.

Shut-off device

The invention relates to a shut-off fitting comprising a housing which is connected to an adjacent pipeline in a pressure tight manner, the diameter of said pipeline defining a tubular passage in the housing. Said fitting also comprises at least one closing body which can be displaced between an open position and a closed position. The inventive shut-off fitting is characterized in that the at least one closing body can be displaced by an articulated mechanism, by means of an actuator which can be vertically displaced in relation to the flow direction, in such a way that it is arranged outside the tubular passage in its open position. The closing body has a contour which is adapted to the contour of the tubular passage, in the open position, and is located on the tubular passage in a radially sealing manner.

Shut-off fitting

A fitting for connection to a pipe includes a sleeve, in which a body is axially displaced along a sleeve axis, whereby the body has a drill for drilling into the pipe and/or a valve body of a valve. The fitting also includes a branch sleeve, located in particular on the sleeve and to which a branch line can be connected. The fitting is easily constructed in such a way that safety requirements are reliably met and such that a connection to a branch line can be easily established if necessary. According to another aspect of the fitting, a locking device which includes an actuating element is located in the branch sleeve, in such a way that the locking device is actuated by means of the axially displaceable body in the sleeve.

Drill for tapping pipe with safety device in branch pipe

A device for connecting components () made of fusible plastic, especially pipes () of a fuel pipeline or a fuel line to a fuel tank () of a vehicle. The device includes a heating element () having ends () which are used to supply electrical energy. The device is easy to use, simple to mount, and produces a functionally reliable welded joint between the components (). To achieve this, one component () includes a retaining body () for a retaining tool (), and the two ends () of the heating element () extend onto the retaining body () where they can engage contact elements () on the retaining tool ().

Device for joining components made of fusible plastic

A tapping valve having a housing which can be electrically welded to a pipe and which includes a connection piece ( ) with a drill ( ) therein for drilling the pipe. The connection piece has an inner surface ( ). The drill or a bushing ( ) in which the drill can be moved axially by a threaded connection ( ) is provided with an external thread which engages the inner surface of the connection piece. Inner surface ( ) is constructed such that it is initially cylindrical adjacent the external thread ( ) and an inner thread can be formed in the inner surface ( ) using the external thread ( ) by rotating the drill ( ) or the thread ( ) in an axially forward direction ( ). The tapping valve is easy to manufacture and yet offers a high degree of functional reliability.

Tapping valve

A pipe tapping valve which can be connected, for example by welding, with a pipe which is to be tapped, and which includes a support stub (4) in which a drill bit (26) is disposed for axial movement, and with which a branch nipple (12) is connected. The pipe tapping valve is configured so that the drilling of the tube can be safely performed with little difficulty, while a seal satisfying the requirements of the particular application is provided both during the drilling and after the drilling has ended. The support stub (4) has a substantially smooth cylindrical inside surface; the drill bit (26) contains at its upper free end an expansion (30) or a sealing ring (54) in contact with the inner surface (34) of the support stub (4), and the drill bit (26) is axially movable by means of a drilling tool (36) attachable to the support stub (4).

Pipe fitting for drilling

A push-in coupling for pipes contains a sleeve body (2) and a holding means, especially with a clamping body (6), for connecting a pipe end (3, 4) to the sleeve body (2). This push-in coupling permits proper handling with little effort during assembly, and insofar as possible prevents the danger of faulty assembly. A sliding body (50) is disposed within the sleeve body (2), the sliding body (50) being made independently of the holding means. The sliding body (50) contains a striker (52) which upon insertion of the pipe end (3, 4) is pushed over an edge (60), and upon reaching a given depth of insertion of the pipe end (3, 4) strikes against a surface (62) producing a detectable signal such as an acoustical signal and/or a vibration signal.

Push-in pipe coupling

An electroweld fitting or electroweld collar for synthetic resin pipes comprising a body of a thermoplastic and/or weldable synthetic resin, on the inner surface of which a heating coil is arranged. In order to weld an electric current is conducted to the heating coil, whereby the material of the body is strongly heated and becomes plastic. The invention solves the problem of reliably applying the contact pressure in the welding zone while using a reduced amount of material. To achieve this it is proposed that a reinforcement in the form of a winding or a tube be arranged on the outer surface of the body and that the thermal coefficient of expansion of the reinforcement be smaller than that of the body.

Growing community of inventors

Mannheim, Germany

Wolfgang Sichler