Pipe Displacement Compensation Experts
Corrosion-resistant and pressure-resistant, ensuring long-lasting durability; flexible expansion joints that absorb shock and reduce noise.
Kaida Corrugated Pipe
2026-04-23
Qinghai-Tibet Plateau Long-Distance Refined Oil Pipeline (Low Temperature + Large Temperature Difference + Permafrost Displacement)
Operating Conditions: Altitude 4,500 m, Pipe Diameter DN600, Medium: Refined Oil, Daily Temperature Difference 40°C, Permafrost Thaw-Freeze Lateral Displacement ±80 mm, Pressure 10 MPa.
Solution: Adoption of a hinged universal lateral expansion joint assembly (304 + Inconel 625), 12 waves, single-wave compensation range ±15 mm.
Results: Operated for 8 years without leakage; successfully absorbed thermal expansion and permafrost slippage, preventing pipe rack overload and weld cracking.
Key Points: High-altitude applications require fatigue resistance and resistance to low-temperature embrittlement; the hinged structure prevents twisting.
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Pipeline Industrial Park, South Section of Yong'an Road, Xicun Town, Gongyi City, Henan Province
