IRIE KOKEN CO., LTD.Designers and manufacturers of Vacuum Bellows,
Vacuum Valves, and Vacuum Equipment

What are
bellows?

“Bellows” can be translated as fuigo or jabara in Japanese. “Fuigo” is a tool that was used to blow air into kilns by blacksmiths long long ago. “Jabara” has various meanings, including the body of an accordion. In vacuum-related fields, cylindrical objects made of metal are pleated to demonstrate expansion/contraction properties, airtightness and spring properties. These are called “bellows.” In other words, “bellows” = “metal expansive pipes.”

Types of
bellows

Metal bellows are divided mainly into welded bellows (alternately welding the inner diameter and outer diameter of a thin metal washer to form a pleated tube) and formed bellows (pressure is applied to a thin metal pipe to form a pleated bellows tube), and both have distinctive characteristics.

Features of
bellows

What’s new»Press release

Topics

• Recipient of letter of appreciation for contribution to X-ray free electron laser “SACLA.”
• IRIE KOKEN promotes business improvements, including TOC management techniques.
• Provides bellows and valves for LED and organic EL manufacturing equipment as well as reactors.
• Provides large-size gate valves and large-diameter bellows for FPD and PV industrial fields.

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