Patent ID: 8893909

Claim:
A pressure vessel for a high pressure press, the pressure vessel comprising: a first sub-cylinder, a second sub-cylinder, a pre-stressing arrangement, a securing member, wherein the first and second sub-cylinders are axially connected to form a cylinder body having an outer envelope surface for enclosing a high pressure medium, the first sub-cylinder includes an outer wall provided with a first groove for receiving a first part of the securing member, the second sub-cylinder includes an outer wall provided with a second groove for receiving a second part of the securing member, the securing member is fitted in the first and second grooves, the securing member, and the first and second grooves are arranged such that the securing member, and the first and second grooves cooperate to prevent separating axial movement between the first and the second sub-cylinders, and wherein the pre-stressing arrangement is provided around the envelope surface of the cylinder body such that the cylinder body is radially pre-stressed and such that the securing member is locked in the first and second grooves, and a sealing arrangement on an inner wall of the first and the second sub-cylinders for sealing a joint between the first and second sub-cylinders, the sealing arrangement including, a ring shaped sealing band, a first circumferential protruding flange, which is arranged on the inner wall of the first sub-cylinder and which axially extends from the joint and away from the second sub-cylinder, and a second circumferential protruding flange, which is arranged on the inner wall of the second sub-cylinder and which axially extends from the joint and away from the first sub-cylinder.