Durable Flex Bellows,
Engineered for Performance Since 2008
Our flex bellows are highly regarded and recommended by
a wide range of customers across Europe and America.
featured products
Flex Bellows
Flex Pipe
Top Quality Flex Bellows With Wholesale Pricing
By the usage of SIEMENS PLC control system bellows forming machine, our flex bellows have good quality consistency. This has been valued and recognized by buyers from many large companies.
Check Out Our Flex Bellows
You need more than just a bellows, you also need a senior supplier with 13 years of experience in this field to build your brand and increase your profits. Let EASTFLEX BELLOWS help you achieve business success.
browse EASTFLEX’S full solutions
Flex bellows
Exhaust flex pipe
Vacuum bellows
Edge Welded Bellows
V band clamp
Valve stem bellows
Valve sealing bellows
Braided flexible hose
Pump connector
EASTFLEX's Services Always Go Extra Mile
We have been rigorously screening suppliers. Our stainless steel raw materials come from authorized wholesalers, and we have established a cooperative relationship with them for many years. High-quality raw materials are the guarantee for the quality of our flex bellows to stand out.
Start With Low MOQ
If you’re looking to purchase flex bellows in bulk, we offer a minimum initial order of 50 pieces each size.
Lighting Fast Delivery
We’ve got plenty of common materials in stock for quick delivery, making it a time-saving option for you.
One Year Warranty
Our flex bellows come with a one-year free replacement guarantee, and we’ve had no quality complaints for five years.
Why choose EASTFLEX?
Automatic Forming
How automated forming guarantees consistent quality for our flex bellows.
EJMA Calculation
Ensure reliable bellows designs with EJMA Calculation software verification.
Multi-ply Design
The multi-ply design of our flex bellows provides exceptional longevity and flexibility.
Top-notch Quality
Our expert skills and rigorous quality control deliver consistently top-quality products.
General Applications
Flex bellows is an extremely important and indispensable part of various exhaust systems.
Turbo Manifold
Exhaust Pipe
Turbo Downpipe
Turbo Charger
technical description
general information
The flex bellows is a flexible connector made of thin-walled metal with multiple consistent convolutions. Our flex bellows are hydroformed, ensuring uniform stress distribution across the convolutions during the expansion forming process, resulting in superior flexibility.
Raw Material
The standard material of flex bellows is stainless steel 304, we also provide stainless steel 321 for some high temperature applications. Stainless steel has good high temperature resistance and corrosion resistance, and is an ideal raw material for exhaust systems. To meet the need for light weighting, titanium bellows are also an option here.
Application
Flex Bellows are designed to absorb the vibration of engine operation and the thermal expansion of piping caused by exhaust flow.
exhaust bellows vs flex pipe
Flex pipes are common flexible joints in automotive exhaust systems, while flex bellows are suitable for some more demanding applications. Flex pipes have been used as automotive parts for decades and are available at all exhaust shops. They feature a wide variety of sizes and types and are affordably priced.
Flex bellows are newly developed to meet new industry challenges. Currently, few bellows manufacturers are capable of providing maturely designed, high-quality flex bellows. The flex bellows has dual solid liners inside, which is the biggest difference in structure of the flexible pipe.
The solid inner liner provides stability for the flex bellows while ensuring smooth exhaust flow. The advanced and robust design ensures our flex bellows can withstand various high-temperature and high-pressure applications. Please note that the inner diameter of the overlapping section of the two liners will be approximately 5mm smaller, which will have a slight impact on flow efficiency.
FAQs About Flex Bellows
EASTFLEX BELLOWS has been wholesaling flex bellows for 13 years and we have encountered all kinds of problems, here are the most important concerns of our customers before closing the deal.
How Long Do Exhaust flex Bellows Last?
The lifetime of the exhaust bellows is closely related to the number of working cycles, time, and frequency. You can consult your supplier for more helpful information.
Exhaust Flex Pipe Sizes
According to different vehicles and the size of exhaust pipes, there are mainly 7 sizes of exhaust bellows. They are 1.75 inch, 2 inch, 2.25 inch, 2.5 inch, 3 inch, 3.5 inch, and 4 inch. These sizes are also the most common and most easily available sizes on the market. The total length of the exhaust flex pipe will vary greatly depending on the product structure, but you don’t need to worry about it, we can customize different lengths according to customer requirements.
Flex Bellows Material
Its commonly used materials are stainless steel 304, 321, and titanium. According to different working environment and customer needs to choose the most suitable material.
FLex Bellows Applications
It has been widely used in many equipments or systems such as fluid, sealing, sensing, vacuum technology, solar energy, and automobiles.
How Bellows Are Manufactured?
Generally speaking, the production of bellows is to fix the metal pipe and install a set of corrugated mold inside or outside the metal pipe. When the stress of the metal pipe exceeds the yield strength of the material, it will be formed according to the designed mold shape.
What does the flex bellows do?
Because the engine mounts and transmission systems are quite rigid, they cannot move too much. The exhaust bellows works as an elastic vessel, and can well absorb the rock generated by the engine operation and the thermal expansion caused by the heat of the exhaust system.
