Flexible tubesProduct catalog

Flexible tubes

Flexible tubes are relatively small-diameter bellows used for piping of equipment that can be bent flexibly.

We are a manufacturer of stainless steel flexible tubes.


- Flexible bending facilitates connection of piping.

- Tube lengths can be easily set.

- Connection of vacuum piping is a standard specification of our flexible tubes.

Technical information

What is a pair of bellows?

Tube characteristics table --- About bending radius allowable for use

About bellows materials --- Explanation of representative materials used for bellows

Glossary of bellows terms

Standard flexible tubes

Since March 2014, we have reviewed the procurement of flexible tubes from the viewpoint of BCP measures. We offer stainless steel flexible tubes that are convenient for piping connection of vacuum equipment and have flexible corrosion resistance,as added new products (10A - 100A) to the four types of conventional standard products.Detailed information.

Standard flexible tube selection procedures

Standard product estimate request form

<Standard specifications>

Pressure conditions (Internal) vacuum (External) atmospheric pressure
Temperature conditions Ordinary temperature (baking temp. max. 250°C)
Leak rate 1×10-7 Pa・m3/s or less(CF flange only:1×10-9 Pa・m3/s or less)

Customized products

Even when standard flexible tubes do not meet your specifications, we will make considerations on an individual basis. Please let us know your detailed specifications, when you have specific needs such as:

We will make recommendations adopting optimum designs for various applications. Please feel free to consult us.

User specification product estimate request form

Products guidance

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