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4 Inch Stainless Steel Exhaust Flex Pipe for Industrial & Automotive Applications

Application Scenarios: 
This 4 inch exhaust flex pipe is widely used in automotive, heavy-duty truck, diesel engine, and marine exhaust systems, providing reliable vibration absorption, noise reduction, and thermal expansion compensation. It is compatible with both OEM and aftermarket systems.

Manufacturing Processes:
 Manufactured using high-grade stainless steel with precision corrugation and TIG welding, the pipe undergoes pressure and leak testing to ensure long-term durability under high temperature and exhaust gas flow conditions.

Features: 
The product offers superior thermal resistance, corrosion protection, and vibration dampening compared to standard flex pipes. Its robust design extends system lifespan and reduces maintenance requirements in demanding industrial environments.

Customization:
 Available in multiple stainless steel grades, lengths, end fittings, and corrugation styles. OEM volume production and specific diameter tolerances can be accommodated to meet precise engineering requirements.
 
 
Availability:
Quantity:

4 Inch Stainless Steel Exhaust Flex Pipe for Industrial & Automotive Applications

Product Overview

The 4 inch stainless steel exhaust flex pipe is engineered for automotive, truck, diesel engine, and marine exhaust systems. Its flexible corrugated design allows it to absorb vibrations, accommodate thermal expansion, and reduce stress on adjacent exhaust components.


Material & Compatibility

Constructed from high-grade stainless steel, the flex pipe ensures corrosion resistance and long-term reliability in high-temperature environments. Compatible with OEM and aftermarket exhaust systems, it can handle both diesel and gasoline applications.


Applications & Installation

Ideal for vehicles, trucks, industrial engines, and marine exhaust systems. Installation requires standard exhaust clamps or flanges. Correct orientation and secure mounting are critical to maintain flexibility and prevent leaks.


Technical Specifications

ItemSpecification
Nominal Diameter4 inch (102 mm)
MaterialStainless Steel 304 / 321
LengthCustomizable
End FittingsPlain, Beveled, or Flanged
Operating Temperature-40°C to 800°C
Pressure RatingStandard industrial exhaust conditions


FAQ

Q: Can this flex pipe handle diesel engine exhaust?

A: Yes, it is designed for diesel engines, providing vibration absorption, thermal expansion compensation, and corrosion resistance under typical operating temperatures.


Q: Is OEM customization available?

A: Yes, we offer custom lengths, corrugation types, stainless steel grades, and end fittings to meet specific engineering requirements.


Q: How should it be installed?

A: Install using compatible exhaust clamps or flanges, ensuring secure mounting without over-tightening to preserve flexibility. Avoid sharp bends or torsion during installation.


Q: Can this be used in marine applications?

A: Yes, it is suitable for marine diesel exhaust systems, provided standard installation practices for corrosion prevention are followed.


Q: What is the typical lead time for bulk orders?

A: Standard stock sizes ship within 2-3 weeks. Custom orders depend on specification and volume, with production timelines provided upon inquiry.

Reliable Manufacturer of Automotive Exhaust Components

We specialize in the manufacturing of automotive exhaust flex pipes, mufflers, exhaust pipe upgrade components, expansion joints, metal bellows, exhaust clamps, hose clamps, and exhaust tailpipe tips — offering a full range of high-performance solutions for exhaust system applications.

Global Shipping & Payment Flexibility​​​​​​​

Multiple shipping options (EXW, FOB, CIF) and secure international payment methods (T/T, PayPal, LC) tailored to your business.

Factory-Direct Reliability​​​​​​​

In-house production ensures stable monthly output, short lead times, and strict quality control without middlemen.

Wholesale Pricing for Bulk Orders​​​​​​​

Optimized for B2B orders. Enjoy competitive factory rates and custom solutions for OEM/ODM partnerships.

ABOUT YDCT

Industry-leading supplier of exhaust flex pipe, metal bellows, and clamps, with 32 years of professional manufacturing experience. Large-volume shipments at more favorable prices.

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CONTACT INFORMATION

Address:HengQianKou Industrial Zone, ZheJiang, China
Whatsapp: +86-15058976697
Company tel: +86-577-62250902
Email address: mike@winnow-intl.com

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