Fränkische Rohrwerke is a company in Germany.
“The alpex pipe and system connections for drinking water and heating installations are suited for concealed installations or installations under screed without any concerns. For detailed information, please refer to DIN 1988 / DIN EN 806.”
“Yes, insulation of cold drinking water pipes is required according to DIN 1988-200 tab. 8 and 9 in order to prevent condensation and to protect drinking water from warming-up due to elevated ambient temperatures. Pipes that come into contact with the structure (floating, screed, etc.) must be protected with at least one layer of insulation (pipe with protective sheathing).”
“No, since the installation of multilayer composite pipe systems usually includes brass fittings. Brass fittings may be affected by corrosion damage in connection with de-mineralised water (aggressive).”
“Yes, alpex installations (pipe + PPSU + brass) can be operated with softened water of up to 0°dH. The limit value for sodium ions of 200 mg/l may not be exceeded during softening.”
“Please refer to the Technical information for detailed alpex performance and pressure loss tables for heating applications.”
“No. Here, clear standard-related statements concerning mechanical properties of the pipes are provided. According to IEC, only our FFKuS-EM-F, or products with similar or better properties can be used.”
“No. To this end, high-quality products by Lübbering are available. www.luebbering.de”
“Pliable, self recovering pipes are classified 3 in the fifth digit, i. e. the pipes have a maximum deformation of 50% (based on the outside diameter). This permissible deformation reduces the inside diameter by 72%, which means that the inside diameter of a size 25 pipe shrinks from 17.9 mm to 5.0 mm.”
“The surface for mounting should be dry and dust-free. The temperature should be between 18 °C and 35 °C. The rail has an immediate holding force, its adhesive force, however, is not designed for continuous loads.”
“All steel and metal conduits - these, however, must be included in the equipotential bonding. Straight length plastic conduits may not be used”
“There are no normative specifications. The areas are determined by architects/designers.”
“For both downloads, please refer to the FFKu ReMo click product catalogue.”
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