1. Product Overview
Custom lined plastic elbow pipes are specialized anti-corrosion pipeline components designed for directional changes in fluid transport systems. These elbows consist of a strong outer metal shell (carbon steel or stainless steel) and a corrosion-resistant plastic lining, which can be made of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), or polytetrafluoroethylene (PTFE).
These custom-fabricated elbow pipes combine the durability and pressure resistance of metal with the superior corrosion resistance of plastic. They are widely used in chemical processing, wastewater treatment, pharmaceuticals, food production, and other industries where resistance to corrosive fluids is essential.
2. Main Features
- Fully Customizable: Available in different angles (e.g., 45°, 90°, 180°), diameters, materials, and connection types to fit specific project needs.
- Superior Corrosion Resistance: Inner lining materials effectively protect against acids, alkalis, salts, and organic solvents.
- High Mechanical Strength: The outer steel shell ensures structural integrity, allowing for high-pressure applications.
- Smooth Inner Surface: Reduces fluid friction, prevents scaling, and enhances transport efficiency.
- Temperature and Pressure Adaptability: Can withstand temperatures up to 200°C and pressures up to 2.5 MPa, depending on the lining material.
- Diverse Connection Options: Can be supplied with flanged, welded, or threaded connections for flexible installation.
3. Specifications and Standards (Manufacturer Production Standards)
(1) Production Standards
- Chinese National Standards (GB/T): GB/T 13663-2018, HG/T 20538-2016
- Industry Standards (HG/T, SY/T): HG/T 21562-1995 (Steel-Plastic Composite Pipes), SY/T 0413-2019 (Pipeline Internal Corrosion Prevention)
- American Standards (ASME, ASTM):
- ASME B16.9 (Factory-Made Wrought Steel Buttwelding Fittings)
- ASTM F1545 (Plastic-Lined Ferrous Metal Pipe, Fittings, and Flanges)
- International Standards (ISO):
- ISO 14692 (Reinforced Thermosetting Resin Pipe Systems for the Oil and Gas Industry)
- ISO 4437 (Plastics Piping Systems for Gaseous Fuels – Polyethylene Pipes and Fittings)
- Enterprise Standards: Customized production according to client requirements
(2) Customization Options
| Nominal Diameter (DN) | Elbow Angle | Base Material | Lining Material | Connection Type | Wall Thickness (mm) | Applicable Pressure (MPa) | Applicable Temperature (°C) |
|---|---|---|---|---|---|---|---|
| 25-1200mm | 45° / 90° / 180° | Carbon Steel, Stainless Steel | PE, PP, PVC, PTFE | Flange, Welded, Threaded | 3-12mm | 1.0-2.5 | -40~200 |
| 50-800mm | 45° / 90° / 180° | Carbon Steel | Polyethylene (PE) | Flange Connection | 3-8mm | 1.0-1.6 | -40~80 |
| 50-600mm | 45° / 90° / 180° | Carbon Steel | Polypropylene (PP) | Flange Connection | 3-6mm | 1.0-1.6 | -20~110 |
| 50-500mm | 45° / 90° / 180° | Carbon Steel | PTFE (Teflon) | Flange Connection | 3-6mm | 1.0-2.5 | -40~200 |
4. Application Industries and Use Cases
- Chemical Industry: Used for transporting highly corrosive liquids, including acids and alkalis.
- Environmental Protection: Applied in wastewater treatment and exhaust gas processing pipelines.
- Pharmaceutical Industry: Suitable for high-purity liquid transport and chemical reagent handling.
- Food Industry: Ensures safe transport of food-grade liquids and potable water.
- Power Industry: Used in flue gas desulfurization and denitrification systems.
5. Recommended Manufacturer – Hebei Hengtai Zeyuan Anti-Corrosion Pipeline Co., Ltd.
Company Profile:
Hebei Hengtai Zeyuan Anti-Corrosion Pipeline Co., Ltd. specializes in manufacturing high-quality anti-corrosion pipelines and fittings. We provide fully customized lined plastic elbow pipes designed to meet stringent industry standards, ensuring maximum performance and longevity.
Manufacturer Advantages:
- Customization Expertise: Ability to produce lined plastic elbows in various sizes, angles, and connection types.
- Stringent Quality Control: All products undergo pressure and corrosion resistance testing.
- Rapid Production & Delivery: Large-scale production capabilities ensure quick turnaround times.
- Professional Technical Support: Experienced engineers offer tailored solutions for unique project requirements.
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Plastic-coated pipe fittings,Lined with plastic custom bend pipe
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