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Product Description
The stainless steel flexible interlock hose is a critical component in industrial and automotive systems where high flexibility and structural strength are required. Made with interlocked stainless steel strip, the hose allows for controlled movement and thermal expansion in pipelines while resisting external mechanical stress, high temperatures, and corrosive environments. It is designed to handle axial motion and vibration while maintaining seal integrity and supporting long-term durability under continuous use.
Flexible interlock hoses are widely used in automotive exhaust assemblies, diesel engine vibration sections, heavy-duty vehicle exhaust routing, and high-temperature duct systems. In industrial settings, these hoses are integrated into expansion joints, pumps, and turbine connections to accommodate movement and reduce stress on rigid piping. Their metal construction ensures reliable performance where rubber or fabric hoses would degrade. They are also ideal for systems requiring directional flexibility and pressure balancing in dynamic environments.
The interlocked hose construction offers both durability and mechanical flexibility. It can withstand bending, torsion, and vibration without collapsing or leaking. Unlike braided hoses, the interlock design prevents over-extension and limits deformation under vacuum or pressure. The stainless steel material provides excellent resistance to rust, acids, and heat, making it suitable for long-term exposure in harsh operating conditions. Additionally, it can be equipped with different end connections and optional internal liners for added sealing or reduced noise transmission.
There are two common internal structures for stainless steel interlock hoses: Round Interlock Hose and Polygonal Interlock Hose.
Round Interlock Hose features a smooth, spiral design with rounded interlocking segments. It offers excellent flexibility and vibration absorption, making it suitable for automotive exhaust systems or applications requiring frequent bending. However, its structural strength and sealing capability are relatively limited, and it typically requires an inner liner for airtight use.
Polygonal Interlock Hose, on the other hand, uses a multi-sided (e.g., hexagonal or octagonal) interlock design. This structure provides greater strength, improved sealing between segments, and better resistance to torsion and tension. It is ideal for industrial applications that demand durability, pressure resistance, and enhanced sealing performance, though it is slightly less flexible and more costly to manufacture.
In summary, round interlock hoses prioritize flexibility and ease of installation, while polygonal interlock hoses are better suited for high-strength and semi-sealed industrial applications. The choice depends on the performance requirements of your specific exhaust or piping system.
Flexible interlock hoses are available in inner diameters ranging from 25mm to 150mm or larger depending on application. Wall thickness and coil pitch are customizable based on required strength and bend radius. Standard materials include SS304, SS316, or SS321 for added temperature resistance. Lengths can be manufactured as continuous coils or cut-to-length with welded flanges or slip fittings. Depending on installation, protective outer sleeves, vibration damping layers, or internal smooth tubes can also be included.
Q: How is an interlock hose different from a braided hose?
An interlock hose is made from wound strip steel forming a spiral with interlocking edges, offering structural strength and vibration resistance, while braided hoses are designed more for pressure containment and require inner cores.
Q: Can this hose handle high-temperature exhaust gases?
Yes, it can withstand continuous temperatures up to 600°C depending on the material used and whether an inner liner is applied.
Q: What types of end connections are available?
We provide welded ends, flanges, slip-fit connections, or threaded fittings depending on customer requirements or standard compatibility.
Q: Is the hose gas-tight?
By default, interlock hoses are not fully gas-tight. If gas-tightness is required, an inner liner or sealing layer can be added.
Q: Can it be used in dynamic motion systems?
Yes, its interlocked structure is designed for vibration absorption and thermal movement, making it ideal for dynamic applications such as engines or turbines.
