FIELD: machine building.
SUBSTANCE: invention relates to set of parts for assemblage during manufacturing of the impermeable wall structure. The set includes impermeable metal sheet (1) with row of the first parallel corrugations (5) and the row of second parallel corrugations (6) crossing at the crossing area (3), elongated stiffener (15) located in the said corrugations (6, 5) to increase the sheet pressure resistance, and anchor (30) with connecting element secured on the sheet external surface at the corrugations crossing area, on which the stiffener shall be held, and clamp (44) interacting with the longitudinal end of the stiffener to hold this stiffener inside the corrugation.
EFFECT: design of the appropriate impermeable wall is used in tight and heat insulated tank, installed in particular on the methane tanker.
27 cl, 14 dwg
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