BurgFlex® Expansion Joints are non-metallic flue duct expansion joints designed to provide reliable stress relief in piping and ducting systems. Our innovative expansion joints effectively absorb thermal growth and shock, isolate mechanical vibration, and accommodate misalignment, ensuring the smooth operation of your industrial processes.
• Absorb Movements: Capable of absorbing axial, transverse, and torsion movements, ensuring flexibility and adaptability in dynamic environments.
• Corrosion and Chemical Resistance: Built to withstand harsh conditions with excellent resistance to corrosion and chemicals, enhancing longevity and reliability.
• Negligible Spring Rates and Loads: Designed with minimal spring rates, reducing the stress on connected piping systems and ensuring smooth operation.
• Ease of Repair and Installation: Our expansion joints are easily repairable and installable, minimizing downtime and maintenance costs.
• High Cycle Life: Engineered for durability, offering a long cycle life to reduce the need for frequent replacements.
• Unique Application Solutions: Custom-designed to meet the specific needs of various industrial applications.
• Vibration Dampening and Sound Attenuation: Effectively dampen vibrations and attenuate sound, contributing to a quieter work environment.
• Compact Design: Provide more movement in shorter face-to-face lengths, optimizing space without compromising functionality.
• Lower Flexing Force: Require less force to flex compared to traditional metal expansion joints, enhancing efficiency and reducing wear.
• Wide Temperature Capability Range: Suitable for temperatures ranging from approximately -45°C to over 1,093°C, making them versatile for various applications.
• Cost-Effective Shipping and Installation: Lower shipping and installation costs due to their lightweight materials and design.
• Variety of Flexible Belt Materials: Available in single-layer and composite belts, with elastomers offering excellent abrasion resistance.
BurgFlex® expansion joints are ideal for a range of industries, including:
• Power Generation: Designed for flue gas applications, helping to manage thermal expansion in exhaust systems.
• Chemical Processing: Perfect for handling aggressive media while providing vibration isolation and flexibility.
• Cement and Steel Manufacturing: Ensuring optimal performance in high-temperature environments where thermal growth is a concern.
• Material Options: Baffles can be fabricated from carbon steel, stainless steel, or other specialized materials based on the specific application and environmental conditions.
• Protection:
◦ Baffles help protect the inner surfaces of fabric composite joints, significantly reducing wear and tear from abrasive particles in the gas stream.
◦ By minimizing erosion, they enhance the overall service life of the expansion joint, ensuring reliable performance in challenging conditions.
• Standard Construction:
◦ Designed with slotted holes, retaining rings facilitate straightforward installation and adjustment, allowing for efficient assembly in various configurations.
• Material Options:
◦ Available in carbon steel, corten, or stainless steel, these rings are engineered to withstand varying pressure and temperature conditions, ensuring a secure fit and reliable performance.
Understanding the various movements that BurgFlex® expansion joints can accommodate is essential for optimal system design:
◦ This refers to the displacement occurring in the two perpendicular planes relative to the duct's longitudinal axis. It allows for misalignment adjustments without compromising the integrity of the duct system.
◦ This movement describes the shortening (compression) or lengthening (extension) of the expansion joint's face-to-face dimension. It is crucial for accommodating thermal expansion and contraction, particularly in fluctuating temperature environments.
◦ Torsional deflection allows for rotational movement in degrees around the duct's longitudinal axis. This capability is vital in applications where the duct may be subjected to twisting forces, ensuring that the joint remains functional without experiencing undue stress.
◦ This involves the rotation of the duct system in degrees, causing the expansion joint flanges to flex out of parallel alignment. Angular deflection is essential for maintaining the flexibility of the system while accommodating misalignments due to thermal or mechanical changes.
◦ Application: Ideal for low-pressure environments where minimal movement is expected.
◦ Design Features:
▪ Lightweight and flexible, these joints offer effective compensation for thermal expansion and contraction in simple ducting systems.
◦ Application: Specifically engineered for high-pressure applications with significant movement capabilities.
◦ Design Features:
▪ Composed of multiple layers of flexible materials, these joints provide superior flexibility, durability, and resistance to mechanical stress and thermal extremes.
To guarantee the reliability and effectiveness of BurgFlex® expansion joints, materials are evaluated across several critical parameters:
• Flexibility: Ensuring that the joint can accommodate movement and thermal expansion without compromising its structural integrity.
• Temperature Resistance: Testing materials across a broad temperature spectrum, ensuring they can withstand both extreme heat and cold.
• Chemical Resistance: Evaluating the material's durability against a variety of chemicals, including acids, bases, and solvents, to ensure longevity in corrosive environments.
• Mechanical Strength: Assessing the material’s ability to endure mechanical stress, such as tension, compression, and shear forces.
• Heat Convection: Measuring how effectively the material can manage heat transfer, which is critical for maintaining operational efficiency.
• Recovery Rate after Compression: Testing how well materials return to their original dimensions after being compressed, ensuring reliable performance over time.
• Tensile Strength: Evaluating resistance to breaking under tension, which is crucial for maintaining joint integrity.
• Abrasive and Tear Strength: Assessing resistance to wear and mechanical damage, particularly in applications where solid particulates are present.
Materials and Application Technology
Employs advanced materials in conjunction with state-of-the-art application technology, providing unparalleled engineering and technical support. This enables us to:
• Document Design: Provide comprehensive documentation that includes detailed construction drawings, measurements, and instructional materials, along with specifications for integration with other components.
• Optimal Material Selection: Match the best materials to specific operating conditions, ensuring maximum reliability and performance. This includes considerations for chemical compatibility, temperature variations, and mechanical loads.
• Design for Survivability: Engineer products designed to endure extreme conditions and stresses, maximizing service life and minimizing maintenance needs.
• Protect Systems: Develop solutions that safeguard plant ductwork and operational systems from damaging vibrations, thermal stresses, and other potential issues.
• Leading Manufacturer:Since 1990, BurgFlex® has been recognized as the country’s leading expansion joint manufacturer, known for our commitment to quality and innovation.
• Full-Service Engineering: We offer comprehensive engineering and manufacturing services, providing flexible solutions tailored to your specific requirements.
• Expertise Across Materials: Our capabilities include the manufacturing of metal, fabric, and PTFE expansion joints, ensuring we can meet diverse industrial needs.
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