Exhaust Flex Pipes
Supplying stainless steel exhaust flex pipe solutions for global aftermarket, repair, commercial vehicle, and exhaust assembly customers.
Stainless Steel Exhaust Flex Pipe Manufacturer & Supplier
Yueding manufactures stainless steel exhaust flex pipes and flexible exhaust connection parts for bulk replacement, aftermarket replenishment, repair supply, commercial vehicles, turbocharged systems, and machinery exhaust applications. Our product range includes double braid flex pipes, interlock liner flex pipes, mesh braid flex connectors, flex pipes with nipples or flanges, exhaust bellows, and related connection parts. With regular size coverage, in-house forming, braiding, welding, inspection, and packing support, we help you source common structures and mixed specifications with fewer supply steps.
Exhaust flexible joints help absorb engine vibration, reduce stress on welded joints, and compensate for thermal expansion in automotive and industrial exhaust systems. Before ordering, you can use our exhaust flex pipe size chart and selection guide to compare common diameters, lengths, structures, and application choices. You can also send your drawing, sample, OE reference, size list, and packaging requirements for review before production, helping reduce size mismatch, batch inconsistency, and repeated confirmation during bulk orders.
Double Braid Flex Pipe
Built with inner and outer stainless steel braid to provide stronger protection for the bellows and better resistance to vibration. This type is suitable for truck exhaust systems, performance exhaust applications, and bulk replacement orders where a stronger flexible section is required.
Interlock Liner Flex Pipe
Designed with an internal interlock liner to help protect the bellows from direct exhaust gas impact and improve flow stability. Recommended for turbocharged engines, commercial vehicles, and applications that require better durability, lower turbulence, or reduced exhaust noise.
Mesh Braid Flex Pipe
A cost-effective flexible connector with an outer stainless steel mesh braid. Suitable for standard aftermarket replacement, repair supply programs, and regular bulk orders where flexibility, basic vibration absorption, and competitive pricing are important.
Flex Pipe with Nipples / Flanges
Supplied with pre-welded extension pipes, nipples, or flanges to reduce on-site cutting and welding work. This type is useful for repair kits, exhaust assemblies, and customized projects that require repeatable installation dimensions.
Exhaust Coupler Kits
Matched connection kits for exhaust flex pipes, couplers, and clamp assemblies. Options can include U-bolt clamps, V-band clamps, band clamps, reducers, or other related parts according to your pipe diameter and installation method.
Stainless Steel Braided Hose
Flexible stainless steel braided hose for diesel engines, generator sets, machinery, and industrial exhaust connections. We support custom diameter, length, flange type, braid structure, and end connection based on your drawing or sample.
Exhaust Bellows
Stainless steel exhaust bellows designed to absorb thermal movement and reduce stress on rigid exhaust pipes or welded joints. Available in standard sizes or customized by diameter, length, layer structure, material, and end connection.
Exhaust Flex Spring Joint
Flexible exhaust joint with a spring-loaded connection structure for applications with vibration, movement, or limited installation space. Suitable for commercial vehicles, machinery exhaust systems, and customized assemblies that need a more flexible connection method.
Factory Capacity for Bulk & Custom Exhaust Flexible Pipes
Zhejiang Yueding Corrugated Tube Co., Ltd. is located in Zhejiang, China, with a factory area of more than 20,000 square meters. Our workshop integrates corrugation forming, hydraulic forming, wire braiding, welding, CNC stamping, assembly, packaging, and warehousing processes to support stable production for stainless steel exhaust flexible pipes and related flexible connection parts.
With in-house production control, the monthly output of related stainless steel exhaust flexible pipes can reach up to 350,000 pieces, supporting both standard bulk supply and drawing-based production review. For bulk orders and long-term supply projects, we can confirm key production details in advance according to your size list, drawings, samples, OE references, packaging method, and target quantity, helping reduce repeated communication and later modifications.
Stable Production Control for Standard Flex Pipe Supply
Material Selection and Inspection Support
Yueding provides different stainless steel material options for exhaust flex pipe production, including AISI 304, 316, 321, and 409, depending on application requirements, cost targets, and working conditions. These materials can be reviewed for standard exhaust replacement, high-temperature exhaust sections, corrosion-prone environments, or cost-sensitive aftermarket applications.
Before production, raw materials can be checked for chemical composition and basic quality requirements. During and after production, finished stainless steel flex pipes can be inspected for dimensions, welding appearance, braid condition, vibration and torsion resistance, corrosion resistance, and assembly matching according to order requirements.
For projects with specific durability requirements, NSS testing, thermal cycling, vibration testing, or related inspection records can be discussed before production. This helps you choose a more suitable material and structure for road salt, humidity, exhaust heat, vibration, and long-term replacement use.
Common Sizes and Production Review
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| Part Number | Inlet Diameter (Inch) | Length (Inch) | Part Number | Inlet Diameter (Inch) | Length (Inch) |
| YD17504 | 1 3/4" | 4" | YD22512 | 2 1/4" | 12" |
| YD17506 | 1 3/4" | 6" | YD25004 | 2 1/2" | 4" |
| YD17508 | 1 3/4" | 8" | YD25006 | 2 1/2" | 6" |
| YD17509 | 1 3/4" | 9" | YD25008 | 2 1/2" | 8" |
| YD17510 | 1 3/4" | 10" | YD25009 | 2 1/2" | 9" |
| YD17511 | 1 3/4" | 11" | YD25010 | 2 1/2" | 10" |
| YD17512 | 1 3/4" | 12" | YD25011 | 2 1/2" | 11" |
| YD20004 | 2" | 4" | YD30004 | 3" | 4" |
| YD20006 | 2" | 6" | YD30006 | 3" | 6" |
| YD20008 | 2" | 8" | YD30008 | 3" | 8" |
| YD20009 | 2" | 9" | YD30010 | 3" | 10" |
| YD20010 | 2" | 10" | YD30012 | 3" | 12" |
| YD20011 | 2" | 11" | YD35006 | 3.5" | 6" |
| YD20012 | 2" | 12" | YD35008 | 3.5" | 8" |
| YD22504 | 2 1/4" | 4" | YD35010 | 3.5" | 10" |
| YD22506 | 2 1/4" | 6" | YD35012 | 3.5" | 12" |
| YD22508 | 2 1/4" | 8" | YD40008 | 4" | 8" |
| YD22509 | 2 1/4" | 9" | YD40010 | 4" | 10" |
| YD22510 | 2 1/4" | 10" | YD40012 | 4" | 12" |
| YD22511 | 2 1/4" | 11" |
Standard Single Braid
Structure: High-grade Bellows + Outer Braid + K2 Cap
Feature: This is the foundational design for vibration isolation. It features a robust K2 cap that secures the outer braid to the bellows.
Best For: Economic replacement solutions where basic vibration damping is required without the need for internal flow liners.
With Inner Braid
Structure: Base Structure + Inner Braid
Feature: Engineered with a stainless steel inner wire braid. This additional layer significantly improves noise elimination functionality by smoothing exhaust gas flow and reducing turbulence.
Best For: Passenger vehicles requiring a quieter ride and protection for the bellows against exhaust pulses.
With Interlock
Structure: Base Structure + Interlock Liner + K1 Cap
Feature: This premium design utilizes a K1 cap and a flexible metal interlock hose. The interlock structure enhances resistance to higher temperatures and significantly increases the pipe's overall tensile strength.
Best For: High-performance engines, turbocharged applications, and commercial trucks where extending component lifespan is critical.
With Nipple
Structure: Available for all types + Extension Nipples.
Feature: Includes pre-welded nipples (extension tubes) on both ends. This configuration retains all the performance features of the base, inner braid, or interlock models but adds better welding capability.
Best For: Repair shops and assembly lines looking for a "ready-to-install" solution that simplifies the connection to existing exhaust piping.
Why Choose Our Heavy Duty Exhaust Flex Pipe Products
Because we are not a trading company—we are a source factory controlling every step of production.
In-House Manufacturing
Our facility is equipped with advanced machinery, including hydraulic metallic hose making machines (DN32-DN350) and high-speed wire braiding machines (24-156 spindle). This ensures consistent wall thickness and braid tension.
Rigorous Quality Control
We adhere to IATF 16949 standards. Every batch undergoes: 100% Air Tightness Testing.Salt Spray Testing for corrosion resistance.Fatigue Lifecycle Analysis.
Global Reach
We successfully export to Russia, Australia, Brazil, the USA, and Europe, understanding the specific quality demands of each region.
OEM/ODM Capabilities
Need a custom logo or specific box design? We offer laser marking and custom packaging. Plus, our tooling team can develop custom molds in as little as 15 days.
Applications of Flexible Exhaust Pipe Connector
Automotive Aftermarket
Trusted by repair chains and distributors, our OEM-spec exhaust components include direct-fit flex pipes with enhanced vibration isolation. Engineered for easy installation, these parts restore structural integrity and reduce system noise for a wide range of light and heavy-duty vehicles.
Petroleum Industry
We provide specialized exhaust bellows designed for large-scale power units in oilfield environments. Engineered with high-temp AISI 321 stainless steel, our components effectively neutralize thermal expansion and withstand continuous mechanical stress, ensuring reliable engine discharge in harsh climates.
Chemical Industry
For chemical processing facilities, our marine-grade exhaust solutions are built to resist aggressive sulfurous gases and high-temperature oxidation. Utilizing precision-welded AISI 316L or 321 alloys, YDCT bellows prevent structural fatigue caused by corrosive discharge, ensuring safe and efficient long-term operation.
Power Generation
Designed for high-performance generator sets (Gensets) and industrial turbines, our heavy-duty exhaust bellows provide critical vibration isolation and thermal expansion compensation. Built with high-grade AISI 321 stainless steel, preventing structural fatigue and ensuring continuous, reliable operation.
Common Questions & Answers
Can we request specific diameters and end types?
Yes. We offer full customization for diameter, length, braid type, and connection method to meet your installation requirements.
Are these pipes tested before shipping?
Can you manufacture flex pipes according to my drawing or sample?
Where should an exhaust flex pipe be installed?
Can I Replace an Exhaust Flex Pipe With a Straight Pipe?
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More than Parts, A True Partnership.
Professional manufacturing of stainless steel exhaust flexible connection components, certified under ISO and IATF systems, with stable exports to more than 100 countries, batch production combined with standard size stock, supporting detail and packaging customization, aiming to provide you with a more efficient and more predictable integrated supply solution.
