Water resistant adjustable jackets for insulated pipe and pipe bends

An adjustable jacket for an insulated conduit, the adjustable jacket comprising inner and outer surfaces, a first section, and a second section, each one of the first and second sections comprising:

• first and second axial ends;
• and
• first and second longitudinal ends that each extends between the first and second axial ends;
• wherein the first longitudinal ends of the first and second sections form an adjustable first longitudinal seal that is slidable in a circumferential direction, and the second longitudinal ends of the first and second sections form an adjustable second longitudinal seal that is slidable in the circumferential direction,
• the first longitudinal seal comprising
• an outer seal formed by a terminal edge of one of the first longitudinal ends of the first and second sections in contact with a portion of the outer surface of the adjustable jacket located circumferentially away from a terminal edge of another one of the first longitudinal ends of the first and second sections, and
• an inner seal formed by the terminal edge of another one of the first longitudinal ends of the first and second sections in contact with a portion of the inner surface of the adjustable jacket located circumferentially away from the terminal edge of one of the first longitudinal seals of the first and second sections,
• a channel having an adjustable volume is defined between a first circumferential extent defined at the one of the first longitudinal ends of the first and second sections, a second circumferential extent defined at the another one of the first longitudinal ends of the first and second sections, the terminal edge of one of the first longitudinal ends of the first and second sections, and the terminal edge of the another one of the first longitudinal ends of the first and second sections, and a circumferential distance between the terminal edge of one of the first longitudinal ends of the first and second sections and the terminal edge of the another one of the first longitudinal ends of the first and second sections is adjustable,
• the second longitudinal seal comprising
• an outer seal formed by a terminal edge of one of the second longitudinal ends of the first and second sections in contact with the outer surface of the adjustable jacket, and
• an inner seal formed by a terminal edge of another one of the second longitudinal ends of the first and second sections in contact with the inner surface of the adjustable jacket.

An adjustable jacket for an insulated conduit, the adjustable jacket comprising a plurality of axial jacket sections arranged adjacent to each other, each one of the plurality of axial jacket sections comprising:

• inner and outer surfaces;
• first and second axial ends;
• and
• first and second longitudinal ends that each extends between the first and second axial ends, the first and second longitudinal ends forming an adjustable longitudinal seal that is slidable in a circumferential direction;
• wherein the second axial end of a first one of the plurality of axial jacket sections and the first axial end of an adjacent one of the plurality of axial jacket sections cooperate to form an axial seal, the axial seal comprising
• an outer seal formed by a terminal edge of the second axial end of the first one of the plurality of axial jacket sections in contact with a portion of the outer surface of the adjacent one of the plurality of axial jacket sections located circumferentially away from a terminal edge of the first axial end of the adjacent one of the plurality of axial jacket sections,
• an inner seal formed by the terminal edge of the first axial end of the adjacent one of the plurality of axial jacket sections in contact with a portion of the inner surface of the first one of the plurality of axial jacket sections located circumferentially away from the terminal edge of the second axial end of the adjacent one of the plurality of axial jacket sections, and
• a channel having an adjustable volume is defined between a first circumferential extent defined at the first axial end, a second circumferential extent defined at the second axial end, the terminal edge of the first axial end of the adjacent one of the plurality of axial jacket sections, and the terminal edge of the second axial end of the first one of the plurality of axial jacket sections, and a circumferential distance between the terminal edge of the first axial end of the adjacent one of the plurality of axial jacket sections and the terminal edge of the second axial end of the first one of the plurality of axial jacket sections is adjustable.

A method of applying an adjustable jacket around an insulated conduit, the method comprising the steps of:

• providing a first adjustable jacket comprising inner and outer surfaces, first and second axial ends, and first and second longitudinal ends that each extends between the first and second axial ends and each includes a terminal edge formed as a flange arranged at an angle with respect to the inner and outer surfaces of the adjustable jacket;
• arranging the first adjustable jacket around an outer surface of an insulated conduit;
• forming an adjustable longitudinal seal that is slidable in a circumferential direction by overlapping the first and second longitudinal ends such that the terminal edge of the first longitudinal end is in contact with a portion of the outer surface of the adjustable jacket located circumferentially away from a terminal edge of the second longitudinal end to form an outer seal, and the terminal edge of the second longitudinal end is in contact with a portion of the inner surface of the adjustable jacket located circumferentially away from the terminal edge of the first longitudinal end to form an inner seal, parallel surfaces of the inner and outer seals defining a channel having an adjustable volume that is defined between a first circumferential extent defined at the first longitudinal end, a second circumferential extent defined at the second longitudinal end, the terminal edge of the first longitudinal end, and the terminal edge of the second longitudinal end, and a circumferential distance between the terminal edge of the first longitudinal end and the terminal edge of the second longitudinal end is adjustable;
• and
• securing the longitudinal seal with a fastening element.

A method of applying an adjustable jacket around an insulated conduit, the method comprising the steps of:

• providing an adjustable jacket having inner and outer surfaces, a first section, and a second section, each one of the first and second sections comprising first and second axial ends, and first and second longitudinal ends that each extends between the first and second axial ends and each includes a terminal edge formed as a flange arranged at an angle with respect to the inner and outer surfaces of the adjustable jacket;
• arranging the first section of the adjustable jacket over an outer surface of an insulated conduit;
• arranging the second section of the adjustable jacket over the outer surface of the insulated conduit such that the first and second sections of the adjustable jacket form a circumferential extent around the outer surface of the insulated conduit;
• forming a first adjustable longitudinal seal that is slidable in a circumferential direction by overlapping the first longitudinal ends of the first and second sections such that the terminal edge of one of the first longitudinal ends of the first and second sections is in contact with a portion of the outer surface of the adjustable jacket located circumferentially away from a terminal edge of another one of the first longitudinal ends of the first and second sections to form an outer seal, and the terminal edge of the another one of the first longitudinal ends of the first and second sections is in contact with a portion of the inner surface of the adjustable jacket located circumferentially away from the terminal edge of the one of the first longitudinal ends of the first and second sections to form an inner seal, parallel surfaces of the inner and outer seals define a channel having an adjustable volume that is defined between a first circumferential extent defined at the one of the first longitudinal ends of the first and second sections, a second circumferential extent defined at the another one of the first longitudinal ends of the first and second sections, the terminal edge of one of the first longitudinal ends of the first and second sections, and the terminal edge of the another one of the first longitudinal ends of the first and second sections, and a circumferential distance between the terminal edge of one of the first longitudinal ends of the first and second sections and the terminal edge of the another one of the first longitudinal ends of the first and second sections is adjustable;
• forming a second longitudinal seal by overlapping the second longitudinal ends of the first and second sections such that the terminal edge of one of the second longitudinal ends of the first and second sections is in contact with the outer surface of the adjustable jacket to form an outer seal, and the terminal edge of another one of the second longitudinal ends of the first and second sections is in contact with the inner surface of the adjustable jacket to form an inner seal;
• and
• securing each one of the first and second longitudinal seals with a fastening element.