EXHAUST FLEX PIPE
Constructed from premium AISI 300-series stainless steel, available in bulk with 1–4" standard inner diameters, and fully customizable in materials, sizes, and branded packaging, with reliable global delivery.
Professional Stainless Steel Flex Pipe Exhaust Supplier
Are you looking for a factory with stable global supply of exhaust flexible connection parts? For more than thirty years, Yueding has focused on providing high quality Exhaust Flexible Pipe and Metal Bellows Related Components for the global markets such as exhaust repair, turbo modification, and heavy machinery. Our Exhaust Flexible Joints are high-temperature and corrosion resistant, effectively absorb engine vibration, and compensate for thermal expansion stress, thereby effectively protecting your expensive exhaust system.To learn about applications and installation of automotive and industrial exhaust flex tube, place check our FAQ and Blog pages.
Double Braid Flex Pipe
Features inner and outer stainless steel wire braiding for maximum structural integrity. This high-strength design is widely used in heavy-duty trucks and high-pressure conditions to prevent bellows elongation.
Interlock Liner Flex Pipe
Premium flexible coupling with a reinforced internal interlock liner. Specially engineered for turbocharged systems to smooth gas flow, reduce noise, and withstand extreme exhaust temperatures without deformation.
Exhaust Mesh Flex Pipe
A cost-effective, high-flexibility solution featuring an outer mesh knit. Optimized for excellent heat dissipation and vibration dampening in automotive aftermarket applications and light-duty industrial systems.
Flex Pipe with Nipples / Flanges
Ready-to-install assemblies with pre-welded pipe extensions or flanges. Designed to improve on-site repair efficiency and production speed, ensuring consistent weld quality for professional exhaust system integration.
Exhaust Coupler Kits
Complete connection solutions featuring heavy-duty U-type and V-band clamps. Designed for precise matching with flexible pipes to ensure leak-proof locking and vibration compensation in high-pressure exhaust systems.
Stainless Steel Braided Hose
Industrial-grade double-layer braided structure for high-power diesel engines and generator sets. Supports custom flange configurations, providing superior flexibility and durability for high-pressure industrial pipelines.
Exhaust Bellows
Precision-welded multi-layer stainless steel bellows designed for high thermal displacement. Available in 1.5–4 inch ID, ideal for power generation and marine exhaust systems requiring maximum stress relief.
Exhaust Flex Spring Joint
Heavy-duty flexible connectors with spring-loaded joint designs. Effectively absorbs engine vibration and thermal expansion, engineered for long-term reliability in commercial vehicle and industrial exhaust layouts.
Manufacturing Capability for Automotive Exhaust Flexi
Zhejiang Yueding Corrugated Tube factory is located in Zhejiang, China, covering more than 20,000 square meters. Our production workshop integrates automated corrugation forming machines and hydraulic forming equipment, together with laser welding and CNC stamping. The monthly output of related stainless steel flexible pipes can reach 350,000 pieces. From raw material to finished product shipment, all steps are completed inside the factory.
For steel strip raw materials and finished stainless flexible tubes, we arrange special staff to carry out inspection, including metal composition, vibration and torsion resistance, corrosion resistance and other tests. You can request related reports from us at any time. We support customization based on drawings and product details. Delivery is timely, price is competitive, and after-sales service is reliable. If you are interested in discussing cooperation with us, please feel free to contact us.
High Temperature Resistance and Corrosion Performance
Yueding offers AISI 304/316 stainless steel for standard and high-corrosion environments, with AISI 321 for high-temperature use and AISI 409 for cost-sensitive applications. You can rely on stable mechanical strength under exhaust temperatures of 600–800°C, with all raw materials re-inspected for chemical composition before production.
Our stainless flex tubes pass over 240 hours of NSS testing, protecting your system against road salts, humidity, and acidic exhaust gases to extend service life and reduce maintenance costs. With precise wall thickness control and multi-layer forming, the bellows withstand 10,000+ cycles of thermal expansion and vibration, maintaining 100% gas tightness even under high-frequency vibration and sudden heat shock.
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.
Choose from our wide selection of standard sizes or request a custom dimension. All products listed are manufactured under IATF 16949 certified quality systems and are available for bulk ordering.
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"
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.
HAVE A QUESTION?
WE ARE HERE TO HELP.
If you have any questions or need assistance, please don't hesitate to contact our customer service team. We are committed to providing you with the highest quality service and support.
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?
Yes, all flex pipes undergo pressure and leak testing to ensure performance and safety.
Can you manufacture flex pipes according to my drawing or sample?
Yes, we specialize in OEM/ODM. Simply send us your technical drawing or a physical sample, and our engineering team can produce a counter-sample for your approval.
More than Parts. A True Partnership.
We are a leading manufacturer in China of stainless steel connection components for automotive exhaust systems. We have extensive R&D and production experience in exhaust flex pipes, metal bellows, clamps, and related product series, and our exports cover more than one hundred countries and regions. Our goal is to simplify your supply chain and make sourcing easier. Your success is our priority.
