Intubation hoop varieties including couplings, half coupling. The couplings with equal diameter and diameter of different diameters, couplings and concentric and eccentric points.
Intubation hoop by socket, socket, bending part, bearing slot etc., which is characterized in that the socket on the bearing socket, socket, socket ends are located in the bending part; compared with the existing technology, reasonable design, simple operation, strong practicability, improve operational quality and convenience. 　
The bearing pipe hoop can be widely used in pipes of different diameters, including single pass, three pass, four pass, etc., and can also be used for water meters and valves