SLEEVE STYLE HAND WRAPPED JOINTS HomeFlexible ConnectionsMercer Rubber Expansion JointsSleeve Style Hand Wrapped Joints Sleeve Style Hand Wrapped Joints Since sleeve type expansion joints cannot be readily protected with control rods, it is IMPERATIVE that piping be axially aligned, properly guided and PROPERLY ANCHORED.Periodic tightening of clamps may be necessary. Series 300 Read more Series 310 Read more Data Sheet