Couplings

A piping assembly, comprising:

• a primary joint joining a first primary pipe and a second primary pipe;
• a coupling assembly for forming a secondary joint between a first secondary pipe section and a second secondary pipe section, the coupling assembly, first secondary pipe section and second secondary pipe section forming a secondary containment around the primary joint, the first primary pipe and the second primary pipe,
• the coupling assembly comprising one of an elbow coupling and an elbow coupling convertible to an in-line coupling the coupling assembly comprising:
• a first coupling component having a first end and a second end, said first coupling component having a longitudinal axis between the first end and the second end, the first end of the first coupling component including a first tubular portion having a first internal diameter sized and shaped to form a sliding fit with the first secondary pipe section, and a first seal positioned such that the first end can be sealed in use to the first secondary pipe section;
• the second end of the first coupling component having a second internal diameter which is larger than the first internal diameter and wherein the second end incorporates an end face, wherein the end face is in a plane that is at least one of substantially non-perpendicular to, and offset from, the longitudinal axis of the first coupling component and wherein the second end further includes a mating region;
• and
• a second coupling component having a first end and a second end, said second coupling component having a longitudinal axis between the first end and the second end of the second coupling component, the first end of the second coupling component including a first tubular portion having a first internal diameter sized and shaped to form a sliding fit with the second secondary pipe section, and a second seal positioned such that the first end of the second coupling component can be sealed in use to the second secondary pipe section;
• the second end of the second coupling component having a second internal diameter which is larger than the first internal diameter of the second coupling component and wherein the second end of the second coupling component incorporates an end face, wherein the end face of the second coupling component is in a plane that is at least one of substantially non-perpendicular to and offset from, the longitudinal axis of the second coupling component and wherein the second end of the second coupling component further includes a mating region sized and shaped adapted to be sealed in use to the mating region of the first coupling component.