PVC Expansion 90-Degree Elbow Pipe Fitting Mold: Description and Features A PVC expansion 90-degree elbow pipe fitting mold is a specialized tool used in the injection molding process to manufacture high-quality PVC elbow fittings designed for plumbing, drainage, and other piping systems. These fittings are essential for changing the direction of fluid flow in pipelines while accommodating thermal expansion and contraction. The mold is precision-engineered to produce durable, leak-proof, and dimensionally accurate elbow fittings that meet industry standards. Key Features of the Mold 1. High-Precision Design - The mold is designed using advanced CAD/CAM software to ensure exact dimensions and smooth internal surfaces, minimizing friction and improving flow efficiency. - Critical features such as the 90-degree bend radius, socket depth, and sealing grooves are machined with tight tolerances for consistent performance. 2. Durable Construction - Made from high-grade hardened steel (such as P20, H13, or S136) to withstand high-pressure injection cycles and resist wear over prolonged use. - Corrosion-resistant coatings or treatments may be applied to extend mold life, especially when molding PVC, which can release acidic byproducts. 3. Efficient Cooling System - Integrated cooling channels ensure uniform heat dissipation, reducing cycle times and preventing warping or sink marks in the finished fittings. - Optimized cooling also enhances production efficiency, lowering operational costs. 4. Automatic Ejection Mechanism - The mold includes precision ejector pins or plates to smoothly release the molded elbow fittings without damage. - This feature minimizes manual handling and speeds up mass production. 5. Multi-Cavity Options - Available in single or multi-cavity configurations to match production volume requirements. Multi-cavity molds increase output while maintaining consistency. 6. Compatibility with PVC Material - Designed to process PVC resin, including rigid (uPVC) or modified formulations, ensuring optimal flow properties and structural integrity in the final product. Applications of the Molded Fittings The 90-degree elbow fittings produced by this mold are widely used in: - Plumbing systems – For redirecting water supply lines in residential and commercial buildings. - Drainage and sewage systems – Ensuring smooth directional changes in waste pipelines. - Industrial piping – Handling chemical fluids, irrigation systems, and ventilation ducts. Advantages of Using This Mold - Consistent Quality – Produces fittings with uniform wall thickness and smooth surfaces, reducing failure risks. - Cost-Effective Production – High durability and efficient cooling lower per-unit manufacturing costs. - Customization Flexibility – Mold designs can be adjusted for different sizes (e.g., ½" to 12" diameters) and pressure ratings. In summary, a well-designed PVC expansion 90-degree elbow pipe fitting mold is critical for manufacturing reliable, high-performance fittings that meet the demands of modern piping systems. Its precision engineering, robust construction, and efficiency make it indispensable for large-scale production.