TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

EXPANSION BELLOWS [1 record]

Record 1 2005-09-07

English

Subject field(s)
  • Pipes and Fittings
  • Thermal Insulation
DEF

Any of various enclosures of variable volume with walls like those of an accordion (as in sealed expansion joints and thermostats).

CONT

Usually constructed of metal, this mechanical device [bellows] finds wide application in mechanical, thermal, instrumentation, and control systems. A metal bellows may be defined as a flexible, expansible, and collapsible metal vessel consisting of a series of annular plates having their inner and outer circumferences joined together. ... Bellows are used in thermal systems where, because of expansion and contraction resulting from temperature changes, flexibility of a leakproof nature must be imparted to piping and other connections.

OBS

The term "bellows" can be used to refer to a part of the compensator, or it can refer to the expansion compensator itself.

French

Domaine(s)
  • Tuyauterie et raccords
  • Isolation thermique
OBS

compensateur de dilatation : appareil ou dispositif absorbant la variation de longueur d'une tuyauterie dans laquelle circule un fluide à température variable ou différente de la température ambiante.

OBS

Le soufflet représente une partie du dispositif appelé «compensateur de dilatation» mais le terme est quelquefois employé pour désigner le tout. Dans ce cas il devient synonyme de «compensateur de dilatation».

Spanish

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