PRODUCT DETAILS
Home » Catalog » Flexible Connector » Exhaust Flexible Pipe » 4 Inch Stainless Steel Exhaust Flex Pipe for Industrial & Automotive Applications

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

Availability:
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.
 
 

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.

YUEDING EXHAUST

YDCT specializes in exhaust connection and fastening components, offering stainless steel flex joints, expansion joints, and clamps for automotive and industrial applications. Most products are made in-house with strict quality control and customization options including material, OEM marking, color, and drawing-based production.

Reliable Delivery

Scheduled production and worldwide shipping ensure timely bulk deliveries.

Factory Direct

In-house manufacturing with partner quality control guarantees consistent performance.​​​​​​​

Bulk OEM

OEM and drawing-based production support stable supply and project compliance.​​​​​​​

ABOUT YDCT

Industry-leading supplier of exhaust flex pipe, metal bellows, and clamps, with 33 years of professional manufacturing experience. 

FOLLOW US

CONTACT INFORMATION

Hengqiankou Industrial Zone, 
Yueqing, Wenzhou, Zhejiang 325600, China
+86-13757770601
mike@yuedingexhaust.com
Copryright © 2026 Zhejiang Yueding Corrugated Tube Co., Ltd.  All rights reserved.   ▏  Sitemap