A bathtub drain connection system includes a first drain pipe configured to couple to a drain opening of a bathtub and a second drain pipe configured to mount to a floor structure. A drain connector is extends between the first drain pipe and the second drain pipe so that the first drain pipe and the second drain pipe are coupled in fluid communication. The drain connector is configured to allow the first drain pipe to be disposed offset relative to the second drain pipe and in a direction that is substantially parallel to a plane defined by the floor structure.

A connecting device for connecting a first and second tube has a sealing sleeve, support elements and first and second clamping bands. First and second end portions of the sealing sleeve receive tube end portions of the first and second tube, respectively. Deformable support elements are arranged on the outer face of the sealing sleeve without being connected to each other, such that first and second support element contact pressing portions of the support elements form first and second openings for receiving first and second end portions, respectively, of the sealing sleeve. A deformable connecting portion connects the first and second support element contact pressing portions. The first and second clamping bands shorten or extend to vary the spacing between the first and second support element contact pressing portions, respectively, to compress or relax the first and second end portions, respectively, of the sealing sleeve.

A connecting device for connecting a first and second tube has a sealing sleeve, support elements and first and second clamping bands. First and second end portions of the sealing sleeve receive tube end portions of the first and second tube, respectively. Deformable support elements are arranged on the outer face of the sealing sleeve without being connected to each other, such that first and second support element contact pressing portions of the support elements form first and second openings for receiving first and second end portions, respectively, of the sealing sleeve. A deformable connecting portion connects the first and second support element contact pressing portions. The first and second clamping bands shorten or extend to vary the spacing between the first and second support element contact pressing portions, respectively, to compress or relax the first and second end portions, respectively, of the sealing sleeve.

A low-pressure tubular system includes a multitude of interconnected tube sections having a longitudinal axis. Each of the tube sections includes a central part and two outer end parts. The tubular system is configured to maintain a low-pressure environment within the connected tube sections. The system further includes a multitude of expansion joints connecting the tube sections. Each of the expansion joints includes a sleeve made of a flexible sheet material and includes a ring shaped endless central part and two ring shaped endless outer end parts. Each of the outer end parts of the expansion joints are arranged to extend coaxial with an adjacent tube section and surround and sealingly engage the outer end part of said adjacent tube section.

A low-pressure tubular system includes a multitude of interconnected tube sections having a longitudinal axis. Each of the tube sections includes a central part and two outer end parts. The tubular system is configured to maintain a low-pressure environment within the connected tube sections. The system further includes a multitude of expansion joints connecting the tube sections. Each of the expansion joints includes a sleeve made of a flexible sheet material and includes a ring shaped endless central part and two ring shaped endless outer end parts. Each of the outer end parts of the expansion joints are arranged to extend coaxial with an adjacent tube section and surround and sealingly engage the outer end part of said adjacent tube section.

A pipe includes at least one first section connected to a second section by a hinged element allowing a predetermined angular movement of the first section relative to the second section under a predetermined minimum force. The hinged element includes two end pieces connected respectively to the first section and to the second section and hinged with each other to allow the angular movement, and a tube having ends connected to the end pieces so as to be elastically deformable under the predetermined force according to the predetermined angular movement. The sections and the end pieces themselves are rigid under the predetermined minimum force. A treatment facility include such pipes.

A gimbal for connecting pipes having a core portion and at least one joint shield portion that surrounds the core portion. The core portion, which has a core portion internal surface and a core portion external surface, has at least two pipe engaging portions that are separated by at least one flexible portion, which has a flexible portion internal surface and a flexible portion external surface, and a plurality of joint cover portions. Each joint cover portion extends from the core portion external surface of the core portion to provide a protective cover for the flexible portion external surface of at least one flexible portion of the core portion and is pivotably connected to a least one joint shield portion. The shield portion is configured to provide a protective shield for at least one flexible portion of the core portion.

A gimbal for connecting pipes having a core portion and at least one joint shield portion that surrounds the core portion. The core portion, which has a core portion internal surface and a core portion external surface, has at least two pipe engaging portions that are separated by at least one flexible portion, which has a flexible portion internal surface and a flexible portion external surface, and a plurality of joint cover portions. Each joint cover portion extends from the core portion external surface of the core portion to provide a protective cover for the flexible portion external surface of at least one flexible portion of the core portion and is pivotably connected to a least one joint shield portion. The shield portion is configured to provide a protective shield for at least one flexible portion of the core portion.