Abstract: A valve and a method for making the valve, the valve including a valve housing with a central part and with two connection ends, wherein internally of the central part there is arranged a valve body in a valve seat and connected to a valve spindle that is arranged in a spindle guide stub on the valve housing. The method includes a tubular workpiece being provided with a cutout, a plate-shaped workpiece being provided that is plastically deformed to form a collar on it whereby a spindle guide stub is formed with a collar along its lower edge and a cutout in its upper surface. The spindle guide stub is laser welded on the tubular workpiece providing an internal welding seam running along the edge of the inner opening in the collar of the spindle guide stub, along the cutout and at the outer side of the tubular workpiece.

Abstract: A valve and a method for producing a valve for regulating a fluid, having a valve housing with a central part and with two connection ends, the connection ends extending away from the central part, wherein internally of the central part there is arranged a valve body including at least a shutoff part and a through-flow part. The valve seat is arranged in the valve housing and resiliently bears against the valve body, a resilient structural part has a spring action that acts in a direction substantially parallel with the flow direction of the valve and has at least one annular flange part adapted for bearing on the valve body. The resilient valve seat includes a fixing member for mechanical fixing of the valve seat in the valve housing. The fixing member has a flange part fixed in the valve housing by plastic deformation.

Abstract: A valve and method for producing a valve for regulating a fluid, the valve including a valve housing with a central part and two connection ends, the connection ends extending away from the central part. Internally of the central part, there is arranged a valve body with a through-going aperture that is arranged in a valve seat and connected to a valve spindle, the valve spindle being arranged in a spindle guide stub on the valve housing. The valve housing is made from a plastically deformed tubular item and includes a collared spindle guide stub with at least one projection, the projection or projections extending in continuation of the spindle guide stub. This projection can be used as a lock ensuring that the valve spindle is retained in its intended position, and at the same time, such projections can form stops at the extreme positions of the valve body.

Abstract: A valve and a method for producing a valve for regulating a fluid, having a valve housing with a central part and with two connection ends, the connection ends extending away from the central part, wherein internally of the central part there is arranged a valve body including at least a shutoff part and a through-flow part. The valve seat is arranged in the valve housing and resiliently bears against the valve body, a resilient structural part has a spring action that acts in a direction substantially parallel with the flow direction of the valve and has at least one annular flange part adapted for bearing on the valve body. The resilient valve seat includes a fixing member for mechanical fixing of the valve seat in the valve housing. The fixing member has a flange part fixed in the valve housing by plastic deformation.

Abstract: A method and a system for stress-relieving annealing one or more first parts of a workpiece, wherein a second part of the workpiece contains heat-sensitive parts. A cooling jacket is placed around the part of the workpiece surrounding heat-sensitive parts such that the part{s) to be annealed are located outside the cooling jacket. The first part(s) are then heated individually by induction up to the annealing temperature of the material in a first annealing zone in the system while simultaneously cooling the second part of the workpiece located in the cooling jacket. After annealing, the workpiece is cooled in a cooling zone, as annealing and cooling of the workpiece occurs under a protecting atmosphere. The annealed workpiece is, e.g., connection ends on a valve housing where the connection ends are shaped by plastic deformation after mounting valve seats, valve body etc. in the central part of the valve housing.

Abstract: A valve and a method for making the valve, the valve including a valve housing with a central part and with two connection ends, wherein internally of the central part there is arranged a valve body in a valve seat and connected to a valve spindle that is arranged in a spindle guide stub on the valve housing. The method includes a tubular workpiece being provided with a cutout, a plate-shaped workpiece being provided that is plastically deformed to form a collar on it whereby a spindle guide stub is formed with a collar along its lower edge and a cutout in its upper surface. The spindle guide stub is laser welded on the tubular workpiece providing an internal welding seam running along the edge of the inner opening in the collar of the spindle guide stub, along the cutout and at the outer side of the tubular workpiece.

Abstract: A valve and method for producing a valve for regulating a fluid, the valve including a valve housing with a central part and two connection ends, the connection ends extending away from the central part. Internally of the central part, there is arranged a valve body with a through-going aperture that is arranged in a valve seat and connected to a valve spindle, the valve spindle being arranged in a spindle guide stub on the valve housing. The valve housing is made from a plastically deformed tubular item and includes a collared spindle guide stub with at least one projection, the projection or projections extending in continuation of the spindle guide stub. This projection can be used as a lock ensuring that the valve spindle is retained in its intended position, and at the same time, such projections can form stops at the extreme positions of the valve body.

Abstract: A regulating valve of the type preferably used for dynamic regulation of fluid-borne systems, such as central heating systems in housing and industrial buildings or cooling facilities, where the control valve is provided with a valve housing with an inlet and an outlet, where a valve insert with an orifice is provided in the valve housing by which the flow in the regulating valve can be regulated, and where additionally there are detectors for detecting either supply pressure or discharge pressure and another pressure, respectively. The regulating valve is provided with a modular valve insert which at least includes a differential pressure regulator, a venturi, a throttle device and a coupling member for an actuator, where the various modules have interacting joining means. A valve insert may thus be built up of respective modules, where the modules are selected individually with the most suitable specifications for the individual task.

Abstract: The present invention concerns a regulating valve (1) of the type preferably used for dynamic regulation of fluid-borne systems, such as central heating systems in housing and industrial buildings or cooling facilities, where the control valve is provided with a valve housing (2) with an inlet (3) and an outlet (4), where a valve insert (5) with an orifice means (12) is provided in the valve housing (2) by which the flow in the regulating valve can be regulated, and where additionally there are detecting means (6, 7) for detecting either supply pressure or discharge pressure and another pressure, respectively. The regulating valve is provided with a modular valve insert (5) which at least includes a differential pressure regulator (9), a venturi (10), a throttle device (11) and a coupling member (13) for an actuator, where the various modules are made with interacting joining means, preferably with snap-action joints.

Abstract: There is disclosed a connecting arrangement for a fitting unit with a fitting housing 13. In the housing there is at least one boring 17, 18 for mounting a medium pipe 24, 36 by means of a threaded fitting 31, 34. The fitting may optionally be chosen as a nut 31 for squeezing a cutting sleeve 30 or as a soldering bushing 34 for mounting the medium pipe by soldering. Irrespectively whether there is a boring 17, 18 in the fitting housing or a boring in the soldering bushing 34, several parts with varying diameters would be provided so that medium pipes with different diameters can be fastened.