FIELD: compensation of temperature strain in mains. SUBSTANCE: bellows expansion joint includes flanges, bellows with corrugations and load-bearing rings in their bottoms, fairing, limiting stops and protective casing. Limiting stops are made in form of cylindrical segments with beads; they are located between fairing and bellows; group of corrugations is embraced with beads at spaced relation. Clearance is equal to permissible amount of strain of corrugations. Radial clearance between flange and protective casing is equal to permissible amount of transverse shift of flange. EFFECT: enhanced reliability. 2 cl, 1 dwg
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