Durable Dual-layer Pipeline For Material Transport
The double-tube conveying system combines a wear-resistant inner pipe and a high-strength outer tube to deliver long-lasting, low-maintenance performance in harsh material handling environments.
The Double-Tube Conveying System is a dual-layer pipeline solution designed for high-wear, high-corrosion material transport applications. It features a wear-resistant inner liner and a high-strength outer pipe that ensures structural stability and extended service life.
This dual-pipe system is ideal for conveying abrasive slurries, tailings, and chemically aggressive fluids in mining, power plants, dredging, and process industries.
Inner tube resists wear and corrosion; outer pipe provides pressure resistance and structural integrity.
The wear-resistant inner layer reduces maintenance and extends pipeline life under extreme abrasion.
Liner materials include ceramic, UHMWPE, high-chromium cast iron, and bimetal composites tailored to media.
Handles aggressive fluids including acidic slurries, flue ash, and alkaline waste streams with reliability.
Available in flanged, welded, or quick-coupled formats for fast on-site deployment and replacement.
Suitable for mining, dredging, power generation, and process industries handling abrasive or corrosive media.
| Parameter | Specification |
|---|---|
| Structure | Inner wear-resistant tube + Outer structural steel pipe |
| Inner Liner Material | Ceramic, UHMWPE, High-Chrome Cast Iron, Bimetal, Alloy Steel |
| Outer Shell Material | Carbon Steel, Q235B, Q345B, or other steel grades |
| Temperature Resistance | Up to 1100°C (depending on liner material) |
| Pipe Sizes | DN 50 – DN 1200 (customizable) |
| Applications | Slurry, ash, tailings, desulfurization, chemical transport |
| Connection Types | Flanged, welded, quick-coupling |
Compared to conventional systems
Maximum transport range
Extended operational lifespan
Reliable operation uptime
Turbulent Flow Double-walled Pipe represents a revolutionary advancement in pneumatic conveying technology, specifically engineered to address the critical challenges of material blockage, wear resistance, and energy efficiency in industrial bulk material transportation systems.
Intelligent air injection system automatically detects potential blockage conditions and responds with targeted air bursts to dislodge accumulated material.
Turbulent flow creates chaotic fluid movement with rapid changes in velocity and direction, resulting in superior mixing and heat transfer performance.
Inner auxiliary air pipe strategically positioned within the main conveying pipeline, equipped with precisely engineered nozzles and throttle orifices.
These technical specifications outline the dimensions, materials, and performance parameters of our Turbulent Flow Double-walled Pipe & Sleeve System.
| Parameter | Specification |
|---|---|
| Outer Pipe Diameter | 50mm – 300mm (2" – 12") |
| Inner Pipe Diameter | 10mm – 45mm (0.4" – 1.8") |
| Wall Thickness (Outer) | 3mm – 12mm |
| Wall Thickness (Inner) | 2mm – 6mm |
| Standard Lengths | 3m, 6m, 12m |
| Custom Lengths | Up to 18m |
| Parameter | Specification |
|---|---|
| Conveying Velocity | 2–5 m/s (starting velocity) |
| Maximum Velocity | 15 m/s |
| Solid-to-Gas Ratio | 50–100 kg/kg |
| Conveying Distance | Up to 2000+ meters |
| Operating Pressure | 0.5–6 bar gauge |
| Temperature Range | –20°C to 400°C |
| Category | Available Grades / Types |
|---|---|
| Carbon Steel | ASTM A53, ASTM A106, API 5L |
| Stainless Steel | 304, 316, 321, 347, Duplex grades |
| Alloy Steel | Chrome-Molybdenum, Inconel, Hastelloy |
| Specialized Coatings | Ceramic Lining, Polymer Coating, Rubber Lining |
30–50% reduction in energy consumption compared to conventional systems due to lower conveying velocities and higher material loading ratios.
60–80% reduction in maintenance costs due to elimination of blockage-related downtime and reduced wear rates from low-velocity operation.
10–15 years service life expectation compared to 3–5 years for conventional systems, with pipe wear rates below 0.1mm/year.
98–99.5% system availability with blockage incidents less than 0.1% of operating time, enabling continuous production.
1–3 year payback period with 35–50% IRR, providing substantial long-term value through reduced operating costs.
Start/stop capability without blockages, modular operation, and fully automated program control for enhanced operational flexibility.
Engineered for durability, our products support critical operations in energy, cement, chemical, and food sectors.
Coal handling, fly ash removal, limestone injection systems, and biomass fuel transport in power plants.
Raw material transport, cement powder handling, kiln dust collection, and finished product loading systems.
Catalyst transport, polymer powder handling, chemical intermediate transport, and hazardous material containment.
Flour transport, pharmaceutical powder handling, vitamin distribution, and nutritional supplement processing.
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