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Process Characteristics of Flexible Metal Conduit

Jul. 08, 2024

Flexible metal conduit (FMC) is renowned for its adaptability and durability, making it a preferred choice in numerous applications. Its application technology showcases strong practicality, especially in addressing issues like significant pipeline settlement. This article delves into the distinct process characteristics of flexible metal conduit, highlighting its advantages in pipeline compensation, settlement observation, stress reduction, and versatile specifications.


Compensation Pipeline Facilities and Sinking Displacement


Large Sinking Displacement


Flexible metal conduits are particularly effective in managing significant sinking displacements in pipelines. This is achieved by connecting the introduction tube and the riser using a stainless steel metal hose. The upper and lower disturbance range (twice the one-side disturbance) corresponds to the displacement of the introduction tube, accommodating settlement by pre-disturbing the installation of the stainless steel metal hose. The nominal diameter and total length of the stainless steel metal hose are key factors in determining these disturbance ranges.


Practical Implications


The large sinking displacement capacity of FMC is crucial in areas prone to ground subsidence. By allowing substantial movement, the conduit prevents pipeline damage, ensuring continued operation even under challenging conditions. This characteristic makes FMC a reliable solution in regions with unstable soil or frequent seismic activity.


Flexible Metal Conduit

Settlement Observation and Quantification


Direct Observation and Measurement


Ground subsidence and pipeline sinking often occur at different rates and magnitudes, complicating risk assessment. Unlike traditional rigid pipelines, FMC allows for direct observation and quantification of settlement. By measuring the deflection of the stainless steel metal conduit, the sinking capacity of the pipeline facility can be accurately calculated.


Enhanced Predictability


This process characteristic provides a clear advantage in predicting and managing pipeline safety hazards. By closely monitoring the deflection of FMC, potential issues can be identified and rectified before they escalate. This proactive approach ensures the integrity of the pipeline system, reducing the risk of unforeseen failures.


Reduction of Installation Stress


Minimizing Installation Stress


The installation of steel pipes through welding introduces significant stress to gas pipelines. When external forces cause pipeline deflection, localized stress points can escalate rapidly, leading to structural weaknesses. The flexible nature of stainless steel metal hoses used in FMC mitigates this issue by minimizing installation stress.


Long-Term Benefits


The reduction of installation stress not only improves the immediate safety of the pipeline but also enhances its long-term reliability. By preventing the accumulation of stress over time, FMC helps maintain the structural integrity of the pipeline, reducing the likelihood of future failures due to stress-induced damage.


Versatility in Specifications


Customizable Disturbance Range


FMC is available in a wide range of specifications, allowing for tailored solutions based on the specific requirements of each application. The disturbance range can be indirectly selected based on the nominal diameter and total length of the stainless steel metal hose. Additionally, series combinations of conduits can be used to adjust the disturbance range, meeting various pre-settlement needs.


Adaptability to Different Conditions


This versatility makes FMC suitable for diverse environments and applications. Whether dealing with minor settlements or significant ground movements, the ability to customize the conduit’s specifications ensures optimal performance. This adaptability is particularly beneficial in complex projects with varying settlement characteristics.




The process characteristics of flexible metal conduit underscore its practicality and effectiveness in addressing significant pipeline settlement challenges. Its ability to manage large sinking displacements, facilitate direct observation and quantification of settlement, reduce installation stress, and offer versatile specifications makes it an invaluable component in pipeline applications. By leveraging these advantages, FMC ensures the safety and reliability of pipeline systems across various environments.


For more information or to explore our range of flexible metal conduits, please contact us. As a leading supplier, we are dedicated to providing high-quality products tailored to meet your specific needs.

Flexible Metal Conduit