CPVC piping for domestic hot water, hotel plumbing, hospital hot water systems, and commercial building heating. Continuous service up to 93°C (200°F), corrosion-free, flame-free installation.
Direct pricing from the Jeddah plant, with technical submittal support.
CPVC (chlorinated polyvinyl chloride) is the thermoplastic pipe material for hot water distribution in Saudi Arabia. Unlike standard uPVC (limited to 60°C), CPVC operates continuously at up to 93°C — essential for domestic hot water systems in the Kingdom, where solar-heated rooftop tanks routinely reach 70-80°C during summer months.
| Pipe Material | CPVC per ASTM F441 |
|---|---|
| Max Temperature | 93°C (200°F) continuous |
| Size Range | 1/2" to 6" NPS / 15-150 mm CTS |
| Jointing | CPVC-specific solvent cement (ASTM F493) |
| Applications | Domestic hot water, hotel plumbing, hospitals, HVAC |
| Critical Rule | NEVER use PVC cement on CPVC pipe |
Saudi Arabia's unique climate creates hot water conditions that standard uPVC cannot handle. Rooftop water storage tanks — ubiquitous on Saudi buildings — are exposed to direct sunlight for 8-12 hours daily. During summer, when ambient temperatures reach 48-50°C, water in these tanks can reach 75-85°C by late afternoon. This water enters the building's hot water plumbing system at temperatures well above uPVC's 60°C limit.
CPVC, with its Vicat softening temperature of ≥110°C and continuous rating of 93°C, provides a safe and reliable solution. The pipe maintains full structural integrity and pressure capacity at the temperatures encountered in Saudi hot water systems. Its corrosion immunity eliminates the dezincification, pitting, and pinhole leak problems that plague copper plumbing in Saudi Arabia's aggressive water chemistry.
Additionally, CPVC installation requires no flame, hot work, or brazing — eliminating fire risk during construction. This is particularly important in hotel, hospital, and high-rise construction where fire permits for brazing operations are restricted.
Residential villas and apartments: CPVC serves as the complete hot water plumbing system from rooftop tank to every hot water fixture. Typical sizes: 1/2" to 1" for fixture connections, 3/4" to 1-1/2" for risers and distribution, 2" to 3" for main trunk lines.
Hotels and hospitality: 5-star hotels in Jeddah, Riyadh, Makkah, and Madinah specify CPVC for hot water plumbing because of its reliability, corrosion immunity, and silent operation (no water hammer noise that disturbs guests). CPVC is also used for kitchen hot water supply in hotel F&B operations.
Hospitals and healthcare: CPVC meets the temperature requirements for hospital hot water systems (60-70°C for Legionella prevention) while providing a smooth, non-reactive bore that does not support biofilm growth. Used for patient care hot water, sterilization unit supply, and kitchen/laundry hot water.
Commercial buildings: Office towers, shopping malls, and mixed-use developments use CPVC for washroom hot water distribution and HVAC chilled/heating water loops.
In summer months (June–September), water stored in rooftop tanks can reach 75-85°C in afternoon hours. Even cold-water tanks can reach 40-45°C. This is why CPVC (rated to 93°C) is essential for hot water plumbing, and why uPVC (limited to 60°C) should be used only for cold water supply.
Absolutely not. PVC and CPVC cements use different solvents. Using PVC cement on CPVC pipe will create weak joints that can fail under pressure and temperature. Always use CPVC-specific cement per ASTM F493. The cements are typically color-coded: PVC cement is clear/grey, CPVC cement is orange/yellow.
CPVC expands approximately 0.063 mm per meter per °C of temperature rise. A 10 m riser experiencing a 50°C temperature swing expands ~31.5 mm. Expansion loops or offsets must be designed into the system at regular intervals. Support spacing is reduced at higher temperatures — 0.6 m at 82°C vs. 1.2 m at 23°C.
Typical Saudi residential villa: 1/2" for fixture connections (basin, shower), 3/4" for hot water risers and branches, 1" to 1-1/4" for main distribution from tank. Hotel rooms typically use 3/4" supply to bathroom group with 1/2" fixture connections.
Contact our Jeddah engineering desk for instant project-specific pricing, technical submittals, and Material Approval Request (MAR) support.
