A pipe coupling includes a clamp housing including at least one end having two opposing clamp members and one or more tightening elements for tightening the clamp members towards each other in a direction transverse to an axial length of the clamp housing so as to apply a radially-inward clamping force on a pipe being clamped in the clamp housing. An at least partially annular seal is mounted in the at least one end of the clamp housing. The seal has a folded-inwards configuration in which a foldable portion of the seal is folded inwards to create a first inner diameter, and a folded-outwards configuration in which the foldable portion of the seal is unfolded outwards to create a second inner diameter larger than the first inner diameter.

A temperature-controlled fluid processing system with accessory attachment mechanism includes an accessory annular ring feature a mounting surface and a tapered surface sloping toward a central axis of the ring feature and away from the mounting surface, and engaging components on the primary device, including concentric annular member and rotation plate. The annular member includes spaced apart through holes housing spring biased pins. The rotation plate surrounds the annular member, and includes one or more ramped inner surface(s). The plate is rotatable between an unattached position wherein the ramped surfaces apply no radial inward force to the spring-biased pins, and an attached position wherein each ramped surface displaces a pin inward through its corresponding through hole such that the conical tip of the spring-biased pin engages the tapered surface of the ring feature, thereby immobilizing the accessory with respect to a head unit of the fluid processing device.

A pipe joint formed between a pin section and a box section. The pin and box sections each have a tubular pipe section, engaging at respective first ends in end-to-end arrangement and have a seal element partially therebetween. The box section includes a box stress collar extending from the first end, the box stress collar being generally cylindrical, axially aligned with the tubular box pipe section and having an inner diameter of the same size as the outer diameter of the pin section, enabling the box stress collar to be placed about the pin section. The pin and the box sections are secured together by means of one or more securing means housed in the box collar and actuable by exertion of radial pressure to urge the pin and box into sealing arrangement.