Stainless steel pipe fitting types
As a pipe material, alloys are used in building technology, especially in the form of stainless steel. Stainless steel is the colloquial name for stainless steels made of chromium-nickel steel with added molybdenum.
In order to ensure that the pipes can be installed cleanly, they are capped at the pipe ends by means of caps and packaged properly. The color of the caps identifies the different tubes. Connections are made with fittings made of gunmetal, brass or stainless steel for pressing, plugging or clamping.
Stainless steel pipes in the gas installation
In the gas installation, stainless steel pipes may not be used buried. And not even if adequate corrosion protection is chosen for underground installation. The reason for this is not the pipe material, but the question of pipe connection. Since the welding of stainless steels in the installation practice as a too complicated process out of the question, remains only the possibility of connection by means of press connections. However, these must not be installed in underground pipelines.
Stainless steel pipes in the drinking water installation
Stainless steel pipe fittings for cold and hot water pipes can be used in the drinking water installation. Statements regarding corrosion resistance (after all, the vernacular also speaks of "stainless steel"), one must be careful with. Chlorine can be very bad for this pipe material. If laying in chloride-containing masonry is planned (e.g., use of "rapid binder"), the stainless steel pipes should also receive additional external corrosion protection. This is especially true if it also has to be expected with a presence of moisture.
Depending on the application in the building services, the additional equipment of the pipes with thermal insulation required. It must be ensured that the insulating material contains a maximum of 0.05% of water-soluble chloride ions. A higher proportion of chloride ions would corrosive to this material in the presence of moisture.
Statements regarding corrosion resistance (after all, the vernacular also speaks of "stainless steel"), one must be careful with. Chlorine can be very bad for this pipe material. If laying in chloride-containing masonry is planned (e.g., use of "rapid binder"), the stainless steel pipes should also receive additional external corrosion protection.
This is especially true if it also has to be expected with a presence of moisture. Depending on the application in the building services, the additional equipment of the pipes with thermal insulation required. It must be ensured that the insulating material contains a maximum of 0.05% of water-soluble chloride ions. A higher proportion of chloride ions would corrosive to this material in the presence of moisture.
Stainless steel pipe fittings may be used for the construction of low-pressure pipes (Operating pressure up to 100 mbar) can be used inside buildings. And as the word "pipeline" suggests, it does not have to stay with a bit of flexibility here. The corrugated tubes are delivered "on a roll". The lengths are manufacturer-specific and of course also dependent on the nominal size.