Wefatherm PP-R SDR 7.4 pipes are manufactured from premium Polypropylene Random Copolymer (PP-R), engineered for superior durability and long-term reliability in pressurized hot and cold water systems.
These pipes are suitable for:
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Potable hot & cold water distribution
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Central heating systems
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Chilled water and air-conditioning networks
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Domestic, commercial, and industrial plumbing applications
Each pipe is supplied in 4-meter green lengths and meets international performance standards:
Standards & Pressure Ratings:
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ISO 15874
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Class 1 / 8 bar
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Class 2 / 6 bar
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Class 4 / 10 bar
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Class 5 / 6 bar
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DIN 8077 / 8078
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20°C → 16 bar
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70°C → 8 bar
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PP-R SDR 7.4 provides an excellent balance of flow rate, pressure capacity, and thermal resistance.
| d (mm) | Item Code | s (mm) | dᵢ (mm) | l/m (mm/m) | DN | kg/m |
|---|---|---|---|---|---|---|
| 20 | 5155 20101 | 2.8 | 14.4 | 0.163 | 15 | 0.624 |
| 25 | 5155 20102 | 3.5 | 18.0 | 0.254 | 20 | 0.968 |
| 32 | 5155 20103 | 4.4 | 23.2 | 0.423 | 25 | 1.564 |
| 40 | 5155 20104 | 5.5 | 29.0 | 0.661 | 32 | 2.432 |
| 50 | 5155 20105 | 6.9 | 36.2 | 1.029 | 40 | 3.760 |
| 63 | 5155 20106 | 8.6 | 45.8 | 1.647 | 50 | 5.936 |
| 75 | 5155 20107 | 10.3 | 54.4 | 2.321 | — | 8.444 |
| 90 | 5155 20108 | 12.3 | 65.4 | 3.359 | 65 | 12.124 |
| 110 | 5155 20109 | 15.1 | 79.8 | 5.001 | 80 | 18.072 |
| 125 | 5155 20110 | 17.1 | 90.8 | 6.475 | 100 | 23.212 |
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