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Aquadex Dadex upvc Pressure pipe 4″

Pressure upvc Pipes

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Description

upvc Pressure pipe 4″

 

Dadex Aquadex local Suppliers Distributor Dealer in Islamabad Pakistan ASTM uPvc pipes sch-40 (E-class)  Contact 0322-3540656

 

What is Aquadex Dadex upvc Pressure pipe 4″ ?

 

The Aquadex system by Dadex is a premium uPVC (Un plasticized Polyvinyl Chloride) pressure piping system specifically engineered for high-pressure water transmission. While often associated with municipal water mains, its chemical resistance and thermal properties make it suitable for specific HVAC applications like chilled water lines.

1. Product Description

Aquadex pipes are manufactured from high-quality, un plasticized PVC, ensuring they remain rigid and durable under pressure. Unlike standard PVC, uPVC does not contain phthalates or BPA, making it safe for potable water.

  • Color: Typically Dark Gray.

  • Jointing Type: Available in Solvent Cement Jointing (Z-Joint) or Rubber Ring Push-Fit (for larger diameters/underground use).

  • Standards: Conforms to BS 3505 and BS EN 1452.

2. Technical Specifications (4″ Pipe)

For a 4-inch (110mm) nominal diameter pipe, the performance varies by “Class,” which determines the wall thickness and maximum working pressure.

Specification Details for 4″ (110mm) Pipe
Available Classes Class B (6 Bar), Class C (9 Bar), Class D (12 Bar), Class E (15 Bar)
Pressure Rating 87 psi (B) to 217 psi (E)
Standard Length 4 meters or 6 meters
Operating Temp Optimal up to 20°C; Max intermittent up to 45°C
Density 1.42 – 1.46 g/cm³
Softening Point > 80°C (Vicat)

Critical Note on Hot Water: uPVC is not recommended for continuous hot water supply (above 45°C). For hot and cold water plumbing, Dadex recommends their Polydex (PPRC) or PEX systems. Aquadex is primarily for Cold Water and Chilled Water (HVAC).

3. Usage & Applications

  • HVAC Systems: Specifically used for Chilled Water Lines in refrigeration plants and cooling towers. Its low thermal conductivity reduces “sweating” (condensation) compared to metal pipes.

  • Potable Water Supply: Main distribution lines for residential and commercial buildings.

  • Industrial: Transportation of mineral acids, alkalis, and salt solutions due to high chemical inertness.

  • Irrigation: High-pressure tube well delivery and sprinkler mainlines.

4. Installation Guidelines

Proper installation is vital to prevent leaks and account for thermal expansion.

1.Preparation & Cutting: Precision check.

Cut the pipe square using a fine-tooth saw. De-burr the edges and create a 15-degree chamfer on the spigot end to prevent damaging the rubber ring or wiping away solvent cement.

2.Cleaning:Crucial for bonding.

Clean the socket and spigot thoroughly with a dry cloth or a specialized uPVC cleaner to remove grease, moisture, or dust.

3.Jointing (Solvent Method):Fast set.

Apply a thin, even layer of Dadex Solvent Cement to the inside of the socket and a thicker layer to the spigot. Push the pipe home immediately without twisting. Hold for 30 seconds.

4.Thermal Expansion Gap:For Push-Fit joints.

If using rubber ring joints, push the pipe to the full depth, then pull it back approximately 10-12mm. This allows the pipe to expand and contract without stressing the fittings.

 

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