Angular compensators are the third group of expansion elements used to absorb expansion. The major advantages of this type of compensators are that they are suitable for absorbing movements in two or three dimensions, which also require a change of direction. Angular compensators provide a definite solution especially in cases where lateral movements are very large. During this type of use, angular compensators should be used in double or triple groups. Depending on whether the resulting expansion is in one or multiple planes, there are different designs. These designs are both single and double joint compensators
