The steel black water pipes are used for the transport of liquids in cases where galvanized water pipes are not needed. The basic parameters/specifications to production of pipes (diameter, thickness, length) are determined centrally from control the line of production with digital means, make that allows the production of pipes of big precision in final dimensions. Surface protection against oxidation with color black of type Bitulak. Utmost the pipes they are provided with conical abroad threaded.
The following controls are executed so the final product completes the requirements of models EN of 10255 (Pipe [YBT])
1. Reaction in the fire
2. Control of mechanic attributes
3. Chemical constitution
4. Hydrostatic trial
5. Control of dimensions: is realized spot check of dimensions of pipes and thickness of galvanized the dimensions control takes place each day for each type of pipe, and each lot of production.
6. Optical control
The pipes [ET] of (Common Trade) are general use without special requirements and specifications model.
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Table Black Tubes For Water