Metal expansion joint
Metal expansion joints are critical components in pipeline systems for compensating thermal expansion and contraction, and absorbing vibrations. Made of corrosion-resistant metal materials (such as 304, 316 stainless steel), they are formed by combining corrugated tubes, flanges, or branch pipes. The corrugated tube design utilizes the elastic deformation of its folded structure to compensate for pipeline displacement in axial, transverse, or angular directions, alleviating stress in the system caused by temperature changes or equipment vibrations, thereby preventing pipeline rupture or joint leaks. The product has strong pressure-bearing capacity and a wide temperature range (-270℃ to 1200℃), suitable for various medium conditions. It is widely used in industries such as petrochemical, power, and metallurgy. Installation is convenient, and dimensions and compensation amounts can be customized according to pipeline parameters, effectively ensuring the safe and stable operation of pipeline systems and extending equipment service life.
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Product Overview:
Metal expansion joints are critical components in pipeline systems for compensating thermal expansion and contraction, and absorbing vibrations. Made of corrosion-resistant metal materials (such as 304, 316 stainless steel), they are formed by combining corrugated tubes, flanges, or branch pipes. The corrugated tube design utilizes the elastic deformation of its folded structure to compensate for pipeline displacement in axial, transverse, or angular directions, alleviating stress in the system caused by temperature changes or equipment vibrations, thereby preventing pipeline rupture or joint leaks.
The product has strong pressure-bearing capacity and a wide temperature range (-270℃ to 1200℃), suitable for various medium conditions. It is widely used in industries such as petrochemical, power, and metallurgy. Installation is convenient, and dimensions and compensation amounts can be customized according to pipeline parameters, effectively ensuring the safe and stable operation of pipeline systems and extending equipment service life.
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Packaging |
Standard export-ready packaging suitable for all types of transportation, or packaged according to your specific requirements. ① Bare (no packaging whatsoever, delivered as individual pieces, can be welded to include lifting lugs) ② Wooden crate packaging ③ Steel frame packaging ④ Strapping bands ⑤ Wooden pallet |
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Container size |
20-foot Standard Container (20GP): Internal dimensions are 5,898 mm (L) × 2,352 mm (W) × 2,390 mm (H), with a volume of approximately 28 m³. 40-foot Standard Container (40GP): Internal dimensions are 12,032 mm (length) × 2,352 mm (width) × 2,390 mm (height), with a volume of approximately 58 m³. 40-foot High Cube (40HQ): Internal dimensions 12,032 mm (L) × 2,352 mm (W) × 2,698 mm (H), with a volume of approximately 68 m³ 45-foot High Cube (45HQ): Internal dimensions are 13,556 mm (length) × 2,352 mm (width) × 2,698 mm (height), with a volume of approximately 86 m³. |
Q
In mining development, which type of wear-resistant pipe offers a better balance between functional adaptability and economy for long-distance transportation of media such as mineral concentrate and slurry?
A
SHS ceramic lined composite steel pipe exhibit high hardness and excellent wear resistance. The smooth surface of the ceramic lining, with its low roughness, reduces frictional resistance during media transport, effectively resisting wear caused by particle erosion and reducing energy consumption. In long-distance transport, it can reduce the load on pumps and save operating costs, making it a superior choice for long-distance media transport.
Q
The oil industry deals with high-pressure transportation of sand-containing crude oil, and the sand particles are abrasive. From the perspective of compression resistance and wear resistance, which material would be more suitable?
A
High-pressure crude oil transportation containing sand requires a balance between pressure resistance and wear resistance. SHS ceramic lined composite steel pipe offer good wear resistance but are brittle and prone to cracking under high pressure, with only moderate pressure resistance. Hard ceramic patch composite steel pipe have good wear resistance, but the bonding strength of the laminations may be affected under high pressure, posing a risk of detachment. Bimetallic composite steel pipe have a strong base steel pipe with high pressure resistance, and the wear-resistant alloy layer addresses sand abrasion. Their overall performance is well-suited to high-pressure conditions; although more expensive, they guarantee stability under high-pressure conditions. Therefore, Bimetallic composite steel pipe remain the more suitable choice.
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In the chemical industry, when transporting corrosive acid and alkaline solutions, which material is more suitable—considering both corrosion resistance and wear resistance reliability?
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The core advantage of SHS ceramic lined composite steel pipe lies in the chemical stability of the ceramic lining, exhibiting extremely strong corrosion resistance to acid and alkali solutions and effectively resisting the erosion of hydrogen ions and hydroxyl ions. Simultaneously, the high hardness of ceramic provides good resistance to wear from small amounts of solid particles in solutions. In scenarios with few solid particles and moderate impact, SHS ceramic lined composite steel pipe offer the best cost-performance ratio.
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Adaptability to metallurgical high-temperature dust scenarios (temperature >300°C)?
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Ceramic patch tube + external insulation layer.
Alumina ceramics can withstand temperatures up to 800℃, but the steel pipe body needs to be protected against high-temperature deformation;
SHS ceramic lined are prone to cracking at high temperatures due to differences in their coefficients of thermal expansion.
In bimetallic tubes, the hardness of high-chromium cast iron decreases by 50% at temperatures above 400℃, and its wear resistance drops sharply.
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Typical Application Scenario Recommendations
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Scene |
Recommended Tube Type |
Reason |
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Underground Grouting (Large Particles) |
Bimetallic Composite steel Pipe |
Highly resistant to impact, capable of withstanding ore collisions. |
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Tailings Transportation (High Abrasion) |
SHS Ceramic-lined Composite Steel Pipe |
Excellent wear resistance, suitable for fine-particle slurries |
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Chemical Acid Liquid Transportation |
SHS Ceramic-lined Composite Steel Pipe (Low Pressure) |
Corrosion-resistant and lower in cost |
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High-pressure sand-containing petroleum medium |
Bimetallic Composite steel Pipe |
Balancing both pressure resistance and wear resistance |
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Metallurgical High-Temperature Dust |
Hard Ceramic Patch Composite steel pipe (Requires Insulation Layer) |
Ceramics are heat-resistant and wear-resistant. |
Inquiry
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Laiwu Shuangli Composite Materials Co., Ltd
Contact number: 186-6340-1567
Phone: 0531-76580008
Fax: 0531-76580008
Email: shuangli2003@slwearsolutions.com
WhatsApp:Shuangli Wear Solutions
Address: Laicheng Industrial Zone, Shandong Province (Kouzhen)