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Product part names

Construction of flanged bellows and names of parts used for them are shown.

Product part names

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Name Description
Flange Disk/cylinder-shape part used for connection of pipes, etc., as a type of piping joint.
Welding groove Grooves are provided in flanges for butt-welding of bellows and flanges;
Such grooves that prevent interference between corrugations and fittings when
bellows are compressed are also provided.
Intermediate ring Flange used to prevent meandering and buckling and to obtain smooth motion
for long bellows.
Internal guide Guide (shaft) passing through the bellows for transfer of customer samples, etc.,
and also used to prevent buckling for long bellows.
External guide Externally passing guide (shaft) used to prevent buckling for long bellows.
Multiblock structure Structure used to avoid meandering and buckling in one block for long bellows;
split into two blocks or more in order to shorten the length of one block.
Number of blocks Number of bellows in the case of a multiblock structure.
Configuration for
preventing excessive
expansion/contraction
Configuration to equalize the operating ranges of respective blocks of a multiblock
structure;
mainly consisting of contraction prevention stoppers and expansion prevention rods.

Contraction
prevention stopper
Stopper to equalize, on the compression side, the operating ranges of respective
blocks of a multiblock structure;
softening the effects of the bellows’ own weight in a vertical posture.
Expansion
prevention rod
Rod to equalize, on the tension side, the operating ranges of respective blocks of a
multiblock structure;
softening the effects of the bellows’ own weight in a vertical posture

Glossary of bellows terms

Product Information List

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