Hyspan Precision Products, Inc.
Hyspan is the world's only manufacturer of all 4 types of metal expansion joints, including flexible Ball Joints. Hyspan Ball Joints save weight and space, protect from sway and hurricanes, replacing large area pipe loops and costly laminated flex pipe, sizes 1/2" to 48", to Class 2500. Metal bellows for vacuum and pressure service, 1" to 20 feet.