A clamp device and a method of connecting such a clamp device onto a cylindrical element

A clamp device having a longitudinal axis and comprising an inner member for assembly onto a cylindrical element, wherein the inner member comprises an inner surface for releasable contact with a portion of an outer surface of the cylindrical element;

• wherein:
• the inner member comprises an outer surface with an outward-facing conical shape;
• and
• the clamp device further comprises an outer member having an inner surface defining an inward-facing conical shape;
• wherein the inward-facing conical shape is complementary with the outward-facing conical shape, whereby in an assembled configuration of the clamp device, when the outer member is assembled onto the inner member, the outer member is movable in a longitudinal direction to generate a wedge effect;
• wherein the inner member or the outer member comprises a sealing that define an area on the respective member, whereby the area defines a sealed cavity between the outer surface of the inner member and the inner surface of the outer member in the assembled configuration of the clamp device, when the outer member is assembled onto the inner member;
• and
• at least one of the outer member or the inner member comprises a fluid port, whereby a fluid may be injected into the sealed cavity.