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Overview
Pipe elbows are indispensable components in any piping network, enabling changes in flow direction, optimizing space utilization, and maintaining system efficiency. Hebei Longrun Pipeline Group Company offers an extensive selection of pipe elbows designed to satisfy the technical demands of industries such as petrochemical, shipbuilding, mining, and municipal infrastructure.
Material Selection
We manufacture pipe elbows from a variety of materials to suit different media and environmental conditions:
Carbon Steel: Offers robustness and cost-effectiveness for general industrial use.
Stainless Steel (304, 316L, 321): Ideal for corrosive or hygienic applications.
Alloy Steels (Chromium-Molybdenum): Suitable for high-temperature, high-pressure services.
Duplex and Super Duplex Stainless Steels: Provide superior resistance in chloride-rich environments.
Dimensional and Pressure Ratings
Pipe elbows are available in nominal pipe sizes (NPS) ranging from ½″ to 48″, and pressure classes from 150# to 2500# per ASME B16.5. Both butt-weld and socket-weld connections are offered, with matched wall thickness schedules to ensure consistent strength and flow characteristics.
Manufacturing Techniques
Our production lines utilize advanced CNC bending machines for seamless, bend-induced fittings and mandrel bending for minimal ovality. Welded elbows are precision-fabricated by segmenting straight pipe sections and employing full-penetration welding, followed by grinding and heat treatment. Regardless of method, each elbow undergoes stringent dimensional verification and non-destructive testing.
Customized Solutions
Recognizing that every project presents unique challenges, Hebei Longrun provides tailor-made elbow solutions:
Special Angles and Bend Radii: Custom angles beyond standard 45° and 90°, and radii to fit tight spaces.
Long-Span Elbows: Designed to minimize flow resistance in high-capacity pipelines.
High-Strength Variants: Heat-treated and quenched-steel elbows for elevated pressure conditions.
Pre-Insulated Elbows: For thermal management in cryogenic or steam distribution systems.
Industry Applications
Shipbuilding: Efficient routing of fuel lines, ballast systems, and firefighting networks.
Mining Operations: Durable elbows for slurry transport and dewatering circuits.
HVAC Systems: Streamlined elbows reduce noise and pressure drop in heating, ventilation, and air conditioning.
Chemical Plants: Resistant to aggressive media and high temperatures in reaction vessels and transfer lines.
Desalination Facilities: Robust design to handle reverse osmosis concentrate and raw seawater streams.
Inspection and Testing
Our in-house metallurgical laboratory performs mechanical testing to verify tensile strength, yield strength, impact toughness, and hardness. Hydrostatic and pneumatic tests confirm pressure integrity. Complete documentation packages, including material certificates and test reports, accompany all shipments.
After-Sales Support
Hebei Longrun maintains a global logistics network and provides technical support to assist with installation guidelines, torque specifications, and maintenance schedules. Customers benefit from our aftermarket parts supply and rapid-response service teams.
Conclusion
With a comprehensive product lineup, flexible customization, and robust quality assurance, Hebei Longrun Pipeline Group Company is your trusted partner for pipe elbows that deliver reliable performance across diverse industrial environments.
