Patent ID: 8141590

Claim:
An arrangement for sealing an end section of a tube or of a tubular vessel comprising a sealing plate positioned pointing to the tube and a front plate positioned facing away from the tube, and a tensioning element, which tube or tubular vessel comprises an inner wall, and which sealing plate and front plate each comprise an outer edge area and inner sides, whereby a circumferential seal is positioned in the outer edge area of the plates, which at least partially is between the inner sides of the plates facing toward each other, wherein on at least one of the inner sides of the plates facing each another there is positioned in the area to form a seal a projection, which, when pressure from liquid is exerted upon the sealing plate causes a deformation of the seal in the direction of the inner wall of the tube or tubular vessel so as to maintain or increase a sealing effect of the circumferential seal, and wherein the tensioning element, due to the exertion of pressure from liquid, maintains the deformation of the seal when the sealing plate is in the state in which it is not acted upon by pressure or is only acted upon by pressure to a slight extent.