Nijanand SWR with its high molecular weight, imparts excellent physical and mechanical properties to the pipe. It gives high ring stiffness to the pipes and hence, can be used as effective alternative to the cast iron drainage pipes.
Nijanand SWR can handle the waste liquid with pH value 2 to 12. It has a high resistance to the most common chemical substances. The inner layer of the pipe is made of PP which has natural property to prevent the accumulation of deposits in the pipe.
Nijanand SWR is hot water resistant - short term 95°C / 203°F and long term 90°C / 194°F. Also it has low co-efficient of linear expansion.
Both the external and internal layers of PP have excellent impact strength and abrasion resistance with smooth inner surface. Nijanand SWR products show high impact resistance at extremely harsh temperature as low as -20°C / -4°F)
Without use of any special tools, the push fit joining installation of Nijanand SWR is simple, quick and efficient. No solvent cement is needed. Also, joints are leak proof.
The smooth inner surface does not allow the waste liquid to stick to the surface, enabling superior flow and less chances of blockage.
PIPE SIZE |
MEAN OUTSIDE DIAMETER (mm) | WALL THICKNESS (mm) | |||||
|---|---|---|---|---|---|---|---|
| TYPE 'A' | TYPE 'B' | ||||||
| Min | Max | Min | Max | Min | Max | ||
| 40 | 40.00 | 40.30 | 1.80 | 2.20 | 3.20 | 3.80 | |
| 50 | 50.00 | 50.30 | 1.80 | 2.20 | 3.20 | 3.80 | |
| 63 | 63.00 | 63.30 | 1.80 | 2.20 | 3.20 | 3.80 | |
| 75 | 75.00 | 75.30 | 1.80 | 2.20 | 3.20 | 3.80 | |
| 90 | 90.00 | 90.30 | 1.90 | 2.30 | 3.20 | 3.80 | |
| 110 | 110.00 | 110.40 | 2.20 | 2.70 | 3.20 | 3.80 | |
| 160 | 160.00 | 160.50 | 3.20 | 3.80 | 4.00 | 4.60 | |
| Technical Details | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MPa (Megapascal Pressure Unit) | 0.25 | 0.40 | 0.60 | 0.80 | 1.00 | 1.25 | ||||||||||
| Nominal Pressure (PN) MPa | ||||||||||||||||
| Class | Class 1 | Class 2 | Class 3 | Class 4 | Class 5 | Class 6 | ||||||||||
| PN (Working Pressure) | 2.5 Kg/Cm² | 4 Kg/Cm² | 6 Kg/Cm² | 8 Kg/Cm² | 10 Kg/Cm² | 12.5 Kg/Cm² | ||||||||||
| Printing / Identification Color | RED | BLUE | GREEN | BROWN | YELLOW | BLACK | ||||||||||
| OD (mm) | Mean OD | Ovality | AVG | AVG | AVG | AVG | AVG | AVG | ||||||||
| Min | Max | Min | Max | |||||||||||||
| 20 | 20.0 | 20.3 | 19.5 | 20.5 | 1.3 | 1.6 | ||||||||||
| 25 | 25.0 | 25.3 | 24.5 | 25.5 | 1.4 | 1.6 | 1.9 | |||||||||
| 32 | 32.0 | 32.3 | 31.5 | 32.5 | 1.7 | 2.0 | 2.5 | |||||||||
| 40 | 40.0 | 40.3 | 39.5 | 40.5 | 1.6 | 2.0 | 2.5 | 3.1 | ||||||||
| 50 | 50.0 | 50.3 | 49.4 | 50.6 | 1.9 | 2.6 | 3.1 | 3.7 | ||||||||
| 63 | 63.0 | 63.3 | 62.2 | 63.8 | 1.7 | 2.5 | 3.1 | 3.8 | 4.7 | |||||||
| 75 | 75.0 | 75.3 | 74.1 | 75.9 | 2.0 | 2.9 | 3.7 | 4.6 | 5.5 | |||||||
| 90 | 90.0 | 90.3 | 88.9 | 91.1 | 1.5 | 2.4 | 3.4 | 4.3 | 5.4 | 6.6 | ||||||
| 110 | 110.0 | 110.4 | 108.6 | 111.4 | 1.8 | 2.8 | 4.0 | 5.3 | 6.6 | 8.1 | ||||||
| 125 | 125.0 | 125.4 | 123.5 | 126.5 | 2.0 | 3.2 | 4.7 | 6.0 | 7.5 | 9.2 | ||||||
| 140 | 140.0 | 140.5 | 138.3 | 141.7 | 2.2 | 3.5 | 5.2 | 6.8 | 8.3 | 10.3 | ||||||
| 160 | 160.0 | 160.5 | 158.0 | 162.0 | 2.6 | 4.0 | 5.8 | 7.8 | 9.5 | 11.8 | ||||||
| 180 | 180.0 | 180.6 | 177.8 | 182.2 | 2.9 | 4.6 | 6.6 | 8.6 | 10.7 | 13.2 | ||||||
| 200 | 200.0 | 200.6 | 197.6 | 202.4 | 3.2 | 5.0 | 7.4 | 9.6 | 11.9 | 14.7 | ||||||
| 225 | 225.0 | 225.7 | 222.3 | 227.7 | 3.6 | 5.6 | 8.2 | 10.8 | 13.4 | 16.5 | ||||||
| 250 | 250.0 | 250.8 | 247.0 | 253.0 | 3.9 | 6.1 | 9.2 | 12.1 | 14.9 | 18.3 | ||||||
| 280 | 280.0 | 280.9 | 276.6 | 283.4 | 4.5 | 6.9 | 10.3 | 13.5 | 16.6 | 20.5 | ||||||
| 315 | 315.0 | 316.0 | 311.2 | 318.8 | 5.0 | 7.8 | 11.6 | 15.1 | 18.6 | 23.1 | ||||||
