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CPVC Pipes
For Hot and Cold Water Plumbing Systems
NATRAJ CPVC Pipes are manufactured using potable grade, lead free CPVC compound, making them safe for drinking water and ensuring they do not affect taste, colour or odour. These pipes are manufactured as per IS 15778 in SDR 11 and SDR 13.5 for hot and cold water plumbing systems. With service capability up to 82°C, CPVC offers strong resistance to corrosion, scaling and chemical attack, making it a dependable alternative to conventional piping materials. The range is available from ½″ to 2″ for easy handling and consistent flow performance.
SDR 11: Commonly used for higher duty plumbing lines where stronger pressure and temperature performance is required.
SDR 13.5: Preferred for regular hot and cold water plumbing networks with reliable long term service.
Solvent Cement Joints: NATRAJ CPVC Plumbing Pipes are supplied with plain ends and are joined with solvent cement type jointing. Proper importance is to be given for selection of CPVC Solvent Cement to ensure strong bonding and leak proof performance. Natraj CPVC solvent cement is best used for this process.
Natraj CPVC Plumbing Pipes are used across hot and cold water distribution systems, including:
-
Residential plumbing for kitchens, bathrooms and utility lines
-
Apartments and housing complexes for internal water supply risers and branches
-
Hospitals, schools, colleges and hospitality facilities where hygienic water delivery is critical
-
Commercial buildings, offices, malls and high rise structures with varying pressure zones
-
Solar water heater lines, geyser connections and boiler fed hot water systems
Range of Available Sizes and Jointing Options
| Sl. No. | Type | Minimum Size | Maximum Size | Jointing |
|---|---|---|---|---|
|
1
|
SDR 11
|
½″ (15 mm)
|
2″ (50 mm)
|
Solvent Cement
|
|
2
|
SDR 13.5
|
½″ (15 mm)
|
2″ (50 mm)
|
Solvent Cement
|
| Features | Advantages |
|---|---|
|
IS 15778 compliant manufacturing |
Assured dimensional accuracy, pressure integrity and dependable long term performance |
|
Potable grade lead free compound |
Safe for drinking water and does not alter taste, colour or odour |
|
High temperature capability up to 82°C |
Reliable for hot water lines, geysers and solar heating systems |
|
Strong pressure endurance |
Maintains stability and joint integrity under fluctuating loads and daily usage cycles |
|
Corrosion and scaling resistance |
No rusting, pitting or scaling, ensuring cleaner water flow and longer service life |
|
Smooth inner bore |
Better flow rates with reduced friction loss and lower risk of choking over time |
|
Chemical resistance |
Inert to chlorine, hard water salts, and commonly encountered acids and alkalis in water |
|
Flame retardant and self extinguishing material |
Added safety for concealed and exposed plumbing installations |
|
Lightweight piping system |
Easier handling, faster installation and lower transportation effort |
|
Solvent cement jointing system |
Quick installation with leak proof joints and strong chemical bonding |
|
Low thermal conductivity |
Reduced heat loss in hot water lines, supporting better energy efficiency |
|
Low maintenance and long life |
Lower lifecycle cost due to minimal deterioration and negligible corrosion related repairs |
|
Nominal Bore |
Nominal Size |
Nominal Outside Diameter |
SDR - 11 |
SDR 13.5 |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Wall Thickness |
Working Pressure at |
Wall Thickness |
Working Pressure at |
|||||||
|
Min |
Max |
27°C |
82°C |
Min |
Max |
27°C |
82°C |
|||
|
(inch) |
(mm) |
(mm) |
(mm) |
(mm) |
Kg/Cm² |
Kg/Cm² |
(mm) |
(mm) |
Kg/Cm² |
Kg/Cm² |
|
½ |
15 |
15.9 |
1.7 |
2.2 |
28.10 |
7.0 |
1.4 |
1.9 |
21.80 |
5.5 |
|
¾ |
20 |
22.2 |
2.0 |
2.5 |
28.10 |
7.0 |
1.7 |
2.2 |
21.80 |
5.5 |
|
1 |
25 |
28.6 |
2.6 |
3.1 |
28.10 |
7.0 |
2.1 |
2.6 |
21.80 |
5.5 |
|
1¼ |
32 |
34.9 |
3.2 |
3.7 |
28.10 |
7.0 |
2.6 |
3.1 |
21.80 |
5.5 |
|
1½ |
40 |
41.3 |
3.8 |
4.3 |
28.10 |
7.0 |
3.1 |
3.6 |
21.80 |
5.5 |
|
2 |
50 |
54.0 |
4.9 |
5.5 |
28.10 |
7.0 |
4.0 |
4.6 |
21.80 |
5.5 |
Outer Diameter, Wall Thickness, and Pressure Rating for CPVC Pipes (SDR 11 and SDR 13.5) as per IS 15778
- CPVC Solvent Cement Jointing