FIELD: valving.
SUBSTANCE: flange comprises two interconnected washers with central openings and periphery openings for coupling bolts. Each washer of the flange has a radial recess made along the tangent line to the inner central opening. The recess is turned by 180° and welded to the washer at the site of thickening oppositely to the site of the recess.
EFFECT: simplified structure and manufacturing.
2 cl, 5 dwg
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