Depending on the pipe dimensions and operating conditions of a pipeline, such as the operating pressure and the transported medium, various joining techniques are available – and thus a variety of options and diverse degrees of freedom – for the installation of the pipeline and its subsequent operation.
Basically, we differentiate between mechanical and welded pipe joints. Examples of non-permanent mechanical joints are couplings and flanges. They are predominantly used in non-buried pipelines. In the case of joint welding, we offer butt-weld and slip-welding options.
The pipes are joined together in the field to form a pipe string using butt welding. Various welding methods are used for this purpose. The standard connection for end design type C3 in the water sector.
Properties
Standard connection for high-pressure pipes. Thanks to their tight tolerances, Mannesmann pipes can be aligned precisely, ensuring low-error connection welds and predictable processes on the construction site. The connection is force-fit, electrically conductive, and can be tested non-destructively using various methods.
Special design of the welded joint for aggressive media, drinking water, and cable protection pipes.
Properties
Standard connection for cement-lined drinking water and sewage transport pipes as well as for injection pipes and pipes transporting oil-water mixtures. In addition, the special version of this connection is ideal for cable protection pipes. Forece-locked, electrically conductive for cathodic corrosion protection, stranded installation, non-destructive testing possible. If necessary, the connection area can be protected during installation using suitable sealing materials.