For indoor cold and hot water supply installations, as follows: – Class 1 (hot water 60°C) – design temperature for service life: 60°C/49 years + 80°C/1 year + 95°C/100 hours. – Class 2 (hot water 70°C) – design temperature for service life: 70°C/49 years + 80°C/1 year + 95°C/100 hours.
VALDuotherm Green PPR Pipe Ø 32×4.4mm SDR7.4 L4m
The VALDuotherm PP-R SDR 7.4 pipe is used for indoor cold and hot water supply installations, as follows:
- Class 1 - hot water 60°C – PN8 bar; design temperature for service life: 60°C/49 years + 80°C/1 year + 95°C/100 hours;
- Class 2 (hot water 70°C) - PN 6 bar; design temperature for service life: 70°C/49 years + 80°C/1 year + 95°C/100 hours;
- cold water PN 16 bar at c=1.5 and PN 20 bar at c=1.25 (Informative - According to ISO 15874-1 - the design pressure for domestic cold water installations for a period of 50 years at a temperature of 20 °C is 10 bar).
The linear expansion coefficient of single-layer PP-R pipes is α = 0.15 mm/m K, which is why the effect of pipe expansion or contraction must be evaluated before wall mounting (exposed installation) of PP-R pipes. Correct installation of clamps or other types of supports and proper positioning of expansion compensators prevents uncontrolled pipe movement due to temperature variations during installation and operation. As a rule, installation expansion is compensated between 2 fixed points by changing direction, using an expansion loop, or where not possible, compensators must be fixed between the pipe and the structure. The fixing clamps (also called fixed points) of the installation are positioned near branches, valves, or wall penetrations, while sliding clamps are mounted along the installation route at well-defined distances. This ensures installation alignment, support, and controlled axial movement. When installing PP-R pipes in screed or walls, they must be placed in protective tubes with a flexible structure, good insulation, and capable of absorbing pipe expansion. In case of excessive expansion that is difficult to compensate with the insulating protective tube, an expansion compensator must be calculated and installed. Please note, pipes must be installed at an acceptable depth under the screed or inside the wall to avoid cracks; additionally, excessive internal stresses at joints must be avoided. The installation depth must be greater than or equal to 1.5 × the outer diameter of the tube. Threaded joints are not permitted in screed or walls. The pressure test is performed before the final embedding of the tube/installation.
- Class 1 - hot water 60°C – PN8 bar; design temperature for service life: 60°C/49 years + 80°C/1 year + 95°C/100 hours;
- Class 2 (hot water 70°C) - PN 6 bar; design temperature for service life: 70°C/49 years + 80°C/1 year + 95°C/100 hours;
- cold water PN 16 bar at c=1.5 and PN 20 bar at c=1.25 (Informative - According to ISO 15874-1 - the design pressure for domestic cold water installations for a period of 50 years at a temperature of 20 °C is 10 bar).
The linear expansion coefficient of single-layer PP-R pipes is α = 0.15 mm/m K, which is why the effect of pipe expansion or contraction must be evaluated before wall mounting (exposed installation) of PP-R pipes. Correct installation of clamps or other types of supports and proper positioning of expansion compensators prevents uncontrolled pipe movement due to temperature variations during installation and operation. As a rule, installation expansion is compensated between 2 fixed points by changing direction, using an expansion loop, or where not possible, compensators must be fixed between the pipe and the structure. The fixing clamps (also called fixed points) of the installation are positioned near branches, valves, or wall penetrations, while sliding clamps are mounted along the installation route at well-defined distances. This ensures installation alignment, support, and controlled axial movement. When installing PP-R pipes in screed or walls, they must be placed in protective tubes with a flexible structure, good insulation, and capable of absorbing pipe expansion. In case of excessive expansion that is difficult to compensate with the insulating protective tube, an expansion compensator must be calculated and installed. Please note, pipes must be installed at an acceptable depth under the screed or inside the wall to avoid cracks; additionally, excessive internal stresses at joints must be avoided. The installation depth must be greater than or equal to 1.5 × the outer diameter of the tube. Threaded joints are not permitted in screed or walls. The pressure test is performed before the final embedding of the tube/installation.
| Culoare | GREEN |
|---|---|
| Ambalare | PLASTIC BAG |
| Material | PPR |
| Tip articol | TEAVA |
| UM colete | BAG |
| Tara origine preferentiala | EU |
| Cod CPV | CPV 44115200-1 |
| Lungime | 4 m |
| SDR | 7,4 |
| Cantitate colet | 10 |
| Diametru | 32 |
| Diametru(mm) | |
| Durata estimata de viata | 50 Years |
| Perioada garantie | 60 Months |
| Cod vamal | 39172210 |
| Subclasa | GREEN PPR PRESSURE PIPES |
