Abstract: A pressure control valve for controlling the pressure of gaseous and liquid media in pipelines, preferably in the drinking water field, containing: a main valve to which the pipeline is connected, wherein the main valve has a main valve housing, a guide cylinder, a valve element, channels for conducting the medium and a spring element, the valve element and the guide cylinder are arranged concentrically with respect to one another and the valve element is movably arranged on the guide cylinder; a control block, wherein the control block has channels for supplying the medium to the main valve and to the pilot valve; and a pilot valve for controlling the inspection pressure, wherein the pilot valve likewise has channels for guiding the medium, wherein the main valve, the control block and the pilot valve are medium-tightly interconnected by means of plug connections.

Abstract: An insulated subassembly for connecting pipelines, containing two insulating half shells made from an insulating plastics, in each case a housing half shell surrounding an insulating half shell, wherein the housing half shell surrounds the outer peripheral surface of the insulating half shell, and at least one hinge connecting the housing half shells, wherein the insulated subassembly contains at least one coupling, preferably quick couplings, positively surrounded by the insulating half shells, and integral closure elements are arranged on the housing half shells.

Abstract: A method and system for detecting displacements in installed pipeline systems and identifying components and their properties, comprising: arranging/attaching a marker to at least one of the components of the installed pipeline system, recording/scanning/photographing the marker (3) and generating a baseline image of the initial state, assigning properties and data to and depositing them on the marker, storing the baseline image at a memory location, re-recording/re-scanning/re-photographing the marker, autonomously detecting the marker and comparing it with the stored baseline image of the corresponding marker, determining alterations or displacements of the marker, outputting determined values, wherein at least two markers are arranged such that they are recorded together on a baseline image.

Abstract: A device for locking a turning handle of a valve containing a handle for actuating a shut-off element of a valve, a latching ring that can be arranged in a rotationally conjoint manner on a valve housing support for an actuating device and an adapter that can be arranged on a drive journal of a shut-off element such that it can be fixed and released again, wherein the adapter and the handle are connected to one another in a releasable manner, wherein an axially displaceable and non-rotatable sliding ring is arranged on the handle, wherein the sliding ring can be displaced axially into a locking or open position and in the locking position the sliding ring locks the rotational movement of the handle and the handle cannot be removed from the valve on account of the position of the sliding ring in the locking position.

Abstract: A fitting for connecting a secondary plastic pipeline of a double pipe system containing two half-shells composed of plastic, wherein in each case each of the half-shells has an integrated heating wire, wherein the heating wire is arranged in each case in the regions of the connecting pieces and the heating wire has several meandering windings, wherein the heating wire is arranged in each case in a groove provided for this in the half-shell and the connecting elements which connect the two half-shells, characterized in that the fitting has distance elements arranged on the inner circumference of the half-shells for concentric arrangement of the fitting with respect to a primary pipeline.

Abstract: Heating element for generating IR heat beams for contactlessly heating plastic profile ends, preferably for end-face welding of pipes or fittings clamped in a device, comprising a heating plate made at least partially of a conductive material and having two heatable faces, a heating wire for generating the heat beams, wherein the heating wire is arranged on the faces of the heating plate, wherein the heating plate has a plurality of heating zones spaced apart radially from one another.

Abstract: Electrofusion tape and method for the production thereof for welding together with plastics pipes in particular for use in a fixed-point fastening, consisting of a jacket element preferably of an electrically insulating plastics material, at least one heating element of electrically conductive plastics material and at least two contact elements for supplying electricity to the heating element, wherein the jacket element and the heating element take the form of tapes, wherein the jacket element surrounds the heating element at least in part, wherein the contact elements are arranged in the mutually opposing marginal regions of the heating element and extend parallel to one another along the heating element.

Abstract: A method for inspecting a weld of plastic pipes by means of a data processing device, comprising: capturing and storing documents; monitoring and recording the installation and the implementation of the weld of the joint; producing a welding report, or adopting a welding report from the welding machine; testing the weld ultrasonically, wherein the test detects and stores the defects that are in the weld; wherein software is used to capture and store the documents, the welding report and the defects, more specifically the data on said defects, wherein an algorithm of the software is used to evaluate the stored documents, reports, defects and data on said defects, and to classify the welded joint as compliant or non-compliant with the requirements.

Abstract: A length compensator for pipelines, preferably plastic pipelines, containing two connecting components, preferably made from plastic, a compensating element made from an elastic material, preferably a thermoplastic elastomer (TPE), and a supporting pipe, wherein the compensating element is arranged between the two connecting components and the compensating element ends are connected to the connecting components, wherein the outer lateral surface of the compensating element is suitably encompassed by the inner lateral surface of the supporting pipe around its entire circumference, wherein the supporting pipe has a circular cross-sectional area and the compensating element expands and contracts exclusively in the axial direction.

Abstract: Weld seam testing chain for testing a weld seam by means of ultrasound on two plastic tubes welded together at the ends, comprising standard chain links, wherein the standard chain links are hooked together to form the weld seam testing chain, and the chain can be lengthened or shortened individually, a sensor receptacle for accommodating the ultrasonic sensor, and an adjusting unit for the fine adjustment of the weld seam testing chain length, wherein the standard chain links have a hook on one side and a hook receptacle on the opposite side, thereby enabling the individual chain links to be hooked together.

Abstract: Method and device for tightening a threaded connection, preferably for connecting pipeline components, wherein the threaded connection to be tightened comprises a connecting element unit having an external thread, a connecting element unit having an internal thread, and a seal element arranged therebetween.

Abstract: A method for determining the end-of-travel positions of a diaphragm in a diaphragm valve having an actuator: initiating displacement of the diaphragm into a first end-of-travel position; ascertaining the first end-of-travel position of the diaphragm, wherein said first end-of-travel position is ascertained by monitoring an actuating current value, wherein the first end-of-travel position is reached when a predefined current value is reached; saving the first end-of-travel position; moving autonomously, preferably in the opposite direction, towards a second end-of-travel position of the diaphragm; ascertaining the second end-of-travel position of the diaphragm, wherein said second end-of-travel position is ascertained by means of a predefined travel length (a) of the diaphragm from the first end-of-travel position; saving the second end-of-travel position.

Abstract: A method and device for stripping the insulation from and peeling pre-insulated pipe ends by means of a peeling and cutting tool.

Abstract: A device for fastening a measuring apparatus on pipes, in particular a butt weld seam checking measuring apparatus, containing a housing for accommodating the measuring, control, and/or drive units and a clamp, wherein the clamp is designed as a ring segment, wherein the clamp is attached in the radial direction over a pipe external diameter, wherein the clamp has a pre-tension in the installed state.

Abstract: A blade for a stripping and peeling tool for stripping and peeling a pre-insulated pipe. The blade comprises a main body having a cutting edge disposed on a longitudinal edge thereof, and an insert blade having an axle for mounting in the main body so that a cutting edge of the insert blade runs parallel to the cutting edge of the main body.

Abstract: Method and device for tightening a threaded connection, preferably for connecting pipeline components, wherein the threaded connection to be tightened comprises a connecting element unit having an external thread, a connecting element unit having an internal thread, and a seal element arranged therebetween.

Abstract: A method, and an apparatus associated therewith, for detecting plastic tube ends clamped in a butt welding machine, the plastic tube ends being planed by means of a plane, which can be introduced between the plastic tube ends, and subsequently being heated by means of a heating mirror, which can be introduced between the plastic tube ends, and the plastic tube ends are welded together after removal of the heating mirror, the plane and/or the heating mirror being tilted in between the plastic tube ends by means of a controlled movement, wherein detection or sensing of the plastic tube ends during the controlled movement of tilting in the plane and/or the heating mirror is carried out by means of at least one sensor arranged on the plane and/or on the heating mirror.

Abstract: A device for end-side welding of plastic profiles, preferably pipes, containing tensioning devices for retaining the plastic profiles in a coaxial position in relation to one another, a heating plate for generating heat rays for contact-free heating up of the plastic profile ends and a reflection outer ring for reflection of the heat radiation onto the plastic profile outer side, wherein a reflection inner ring is arranged on the heating plate, wherein the reflection inner ring reflects the heat rays of the heating plate onto the plastic profile inner side.

Abstract: Electric welding coupler for the welding of pipes made of thermoplastic material or other weldable plastics comprising a cylindrical body made of thermoplastic material or other weldable plastics, containing at least one welding element, wherein the welding element is arranged close to the inner diameter of the cylindrical body, wherein the welding element forms at least two welding zones, a contact for feeding the electric current and at least one cavity, wherein the cavity is arranged in the cylindrical body, wherein a reinforcing ring is arranged around the outer circumference respectively outer diameter of the cylindrical body.

Abstract: A paring and cutting tool, and a therewith associated method, for the stripping and paring of pre-insulated pipe ends, in particular of the outside diameter of the medium-conveying pipe comprising a clamping unit for the reception of the pipe end, a guide unit for the feed movement of the stripping and paring unit, wherein the guide unit extends through the clamping unit, a cutting unit for separating the outer pipe and the insulating layer, a carrier and a stripping and paring unit, wherein the stripping and paring unit has a paring element, preferably a paring blade, and a stripping element, preferably a stripping contour, for the simultaneous stripping and paring of the pipe end, in particular of the medium-conveying pipe end.