close
Choose Your Site
Global
Social Media
Views: 0 Author: Site Editor Publish Time: 2025-09-19 Origin: Site
In the field of industrial corrosive fluid transportation, PPH and PVDF are two of the most commonly used high-performance plastic piping materials. Although both are thermoplastics, they differ significantly in properties, which directly affects their suitable applications.
| Property | PPH (Homopolymeric Polypropylene) | PVDF (Polyvinylidene Fluoride) |
|---|---|---|
| Temperature Resistance | Moderate Typically suitable for -20°C ~ +90°C | Excellent Suitable for -40°C ~ +140°C |
| Chemical Resistance | Excellent resistance to most inorganic acids, alkalis, and salt solutions. Cost-effective. | Superior resistance to strong oxidizing acids, halogens (chlorine, bromine), and many organic solvents. |
| Mechanical Strength | Good, but can become brittle at low temperatures. Relatively lower pressure-bearing capability. | Very high mechanical strength, stiffness, and creep resistance. Better pressure-bearing capability, excellent fatigue and UV aging resistance. |
| Purity & Smoothness | Smooth surface, less prone to scaling. | Extremely high purity and very smooth surface, making it specially suited for ultra-high purity applications (e.g., semiconductor, photovoltaic) where metal ion contamination must be avoided. |
| Primary Applications | Environmental water treatment, acid/alkali transfer, metallurgy, general chemical wastewater. | Ultra-pure chemical transfer, photovoltaic, semiconductor, lithium battery industries, high-temperature/high-purity chemical liquids, plating baths. |
| Cost | Economical | Relatively Higher |
Choose PPH Pipe when: Your application involves common acid, alkali, or salt solutions, operating temperatures are below 90°C, and budget is a key consideration. It is a cost-effective and reliable solution for many corrosive duties.
Choose PVDF Pipe when: Your medium contains strong oxidizers, halogens, or organic solvents, operating temperatures are higher (exceeding 90°C), or the application demands ultra-high purity and exceptional mechanical strength (e.g., semiconductor, photovoltaic). It is the top-tier choice for harsh and demanding applications.
