For sanitary cold and hot water installations, as well as heating installations, as follows:
– Class 1 (hot water 60°C) – design temperature related to service life: 60°C/49 years + 80°C/1 year + 95°C/100 hours.
– Class 2 (hot water 70°C) – design temperature related to service life: 70°C/49 years + 80°C/1 year + 95°C/100 hours.
– Class 5 (radiator heating) – design temperature related to service life: 80°C/10 years + 60°C/25 years + 20°C/14
years + 90°C/1 year + 100°C/100 hours.
VALDuotherm GRAY PPR/FIBER PIPE D. 20×2.8 mm SDR 7.4 L 4 m
VALDuotherm PP-R/PP-R+GF/PP-R SDR 7.4 pipe is used for indoor installations for cold water supply, hot water supply, and heating, as follows:
- Class 1 - hot water 60°C – PN 8 bar; design temperature related to 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 related to service life: 70°C/49 years + 80°C/1 year + 95°C/100 hours;
- Class 5 (heating installations including high-temperature radiators) - PN 6 bar; design temperature related to service life: 20°C/14 years + 60°C/25 years + 80°C/10 years + 90°C/1 year + 100°C/100 hours;
- cold water PN 16 bar at c = 1.5 and PN 20 bar at c = 1.25 (Informative - According to SR EN ISO 21003-1, the design pressure for sanitary cold water installations for a period of 50 years at a temperature of 20°C is 10 bar).
Reference standard: SR EN ISO 21003-2 - Multilayer piping systems for hot and cold water installations inside buildings, Part 2: Pipes
The linear expansion coefficient of PP-R/PP-R+GF/PP-R pipes is α = 0.045 mm/m·K, which is why, before wall mounting (surface mounting) PP-R/PP-R+GF/PP-R pipes, the effect of pipe expansion or contraction must be assessed. Correct installation of clamps or other types of supports and correct positioning of expansion compensators prevents uncontrolled pipe movement due to temperature variations during installation and operation. As a rule, system expansion is compensated between 2 fixed points by changing direction, an expansion loop, or where this is not possible, compensators must be fixed between the pipe and the structure. Fixing clamps (also called fixed points) of the system are positioned near branches, valves, or wall penetrations, and sliding ones are installed along the route at well-defined distances. This ensures system alignment, support, and controlled axial movement. When installing PP-R fiber pipes in screed or wall, they are installed in protective conduits with a flexible structure, good insulation, and capable of absorbing pipe expansion. In case of excessive expansion that is difficult to compensate through the protective insulating conduit, an expansion compensator must be calculated and installed. Attention: pipes must be installed at an acceptable depth under the screed or inside the wall to avoid cracks; in addition, 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 pipe. Threaded joints are not permitted in screed or wall. The pressure test is carried out before the pipe/system is permanently embedded.
The technical manual covers methods for evaluating expansion and ways to compensate for it, including clamp positioning.
- Class 1 - hot water 60°C – PN 8 bar; design temperature related to 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 related to service life: 70°C/49 years + 80°C/1 year + 95°C/100 hours;
- Class 5 (heating installations including high-temperature radiators) - PN 6 bar; design temperature related to service life: 20°C/14 years + 60°C/25 years + 80°C/10 years + 90°C/1 year + 100°C/100 hours;
- cold water PN 16 bar at c = 1.5 and PN 20 bar at c = 1.25 (Informative - According to SR EN ISO 21003-1, the design pressure for sanitary cold water installations for a period of 50 years at a temperature of 20°C is 10 bar).
Reference standard: SR EN ISO 21003-2 - Multilayer piping systems for hot and cold water installations inside buildings, Part 2: Pipes
The linear expansion coefficient of PP-R/PP-R+GF/PP-R pipes is α = 0.045 mm/m·K, which is why, before wall mounting (surface mounting) PP-R/PP-R+GF/PP-R pipes, the effect of pipe expansion or contraction must be assessed. Correct installation of clamps or other types of supports and correct positioning of expansion compensators prevents uncontrolled pipe movement due to temperature variations during installation and operation. As a rule, system expansion is compensated between 2 fixed points by changing direction, an expansion loop, or where this is not possible, compensators must be fixed between the pipe and the structure. Fixing clamps (also called fixed points) of the system are positioned near branches, valves, or wall penetrations, and sliding ones are installed along the route at well-defined distances. This ensures system alignment, support, and controlled axial movement. When installing PP-R fiber pipes in screed or wall, they are installed in protective conduits with a flexible structure, good insulation, and capable of absorbing pipe expansion. In case of excessive expansion that is difficult to compensate through the protective insulating conduit, an expansion compensator must be calculated and installed. Attention: pipes must be installed at an acceptable depth under the screed or inside the wall to avoid cracks; in addition, 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 pipe. Threaded joints are not permitted in screed or wall. The pressure test is carried out before the pipe/system is permanently embedded.
The technical manual covers methods for evaluating expansion and ways to compensate for it, including clamp positioning.
| Ambalare | PLASTIC BAG |
|---|---|
| Culoare | GRI |
| Material | PPR |
| Tip articol | TEAVA |
| UM colete | BAG |
| Tara origine preferentiala | EU |
| Cod CPV | CPV 44115200-1 |
| Lungime | 4 m |
| SDR | 7,4 |
| Diametru | 20 |
| Cantitate colet | 20 |
| Diametru(mm) | |
| Durata estimata de viata | 50 Years |
| Perioada garantie | 60 Months |
| Cod vamal | 39172210 |
| Subclasa | PRESSURE PIPES PPR GRAY WITH FIBER |
