#Hydroplast #Schedule80 #uPVC systems are engineered for industrial and high-performance applications where standard plumbing materials might fail. They provide enhanced wall thickness compared to Schedule 40, allowing for higher pressure ratings and better structural integrity.
### **Technical Specifications & Standards**
Hydroplast Schedule 80 uPVC (#Unplasticized #Polyvinyl #Chloride) is typically manufactured in accordance with major international standards:
* **ASTM D1784:** Standard Specification for Rigid PVC Compounds.
* **ASTM D1785:** Standard Specification for uPVC Iron Pipe Size (IPS), Schedules 40, 80, and 120.
* **ASTM D2467:** Standard Specification for uPVC Schedule 80 Socket-Type Fittings.
* **NSF/ANSI 61:** Certified for use in potable (drinking) water applications.
### **Pressure Ratings**
The pressure capacity of Schedule 80 uPVC is significantly higher than Schedule 40. However, the rating is **size-dependent**; as the pipe diameter increases, the maximum allowable pressure decreases.
| Pipe Size (Inches) | Max Pressure at 23°C (73°F) |
|---|---|
| 1/2" | 850 PSI |
| 1" | 630 PSI |
| 2" | 400 PSI |
| 4" | 320 PSI |
| 6" | 280 PSI |
### **Temperature Performance**
While uPVC is highly durable, it is a #thermoplastic and is sensitive to heat.
* **Maximum Operating Temperature:** **60°C (140°F)**.
* **Temperature De-rating:** As the temperature rises above 23°C (73°F), the pressure rating must be reduced. For example, at 40°C (104°F), the pipe can only handle approximately **50%** of its original pressure rating.
* **Note:** For applications consistently exceeding 60°C, CPVC (Chlorinated Polyvinyl Chloride) is generally recommended instead of uPVC.
### **Key Features & Description**
1. **Chemical Resistance:** Excellent resistance to most acids, bases, salts, and oxidants. It is ideal for chemical processing and industrial waste lines.
2. **Corrosion Proof:** Unlike metallic pipes, uPVC does not rust, pit, or scale, maintaining a smooth internal surface (low Hazen-Williams C-factor) over its lifespan.
3. **High Wall Thickness:** The "Schedule 80" designation means it has thicker walls than standard pipes. This makes it suitable for threading (though threaded joints further reduce pressure ratings by 50%) and provides better resistance to physical impact.
4. **Jointing Method:** Typically joined using **solvent cement** (welding), which creates a chemical bond between the pipe and fitting that is often stronger than the pipe itself.
### **Common Applications**
* Industrial chemical processing.
* Water treatment plants and reverse osmosis (RO) systems.
* High-pressure chilled water lines.
* Commercial swimming pool and aquarium life support systems.
* Agricultural irrigation requiring high-pressure durability.
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