The initial cost of the throat hoop connection is 20-30% lower than that of the flange connection. The service life of the hoop is longer than that of the flange connection, and the installation and maintenance is simple and fast. Its economic and technical advantages are obvious. Especially after the development of these years, the domestic production technology of throat hoop connector has been greatly improved. However, due to the influence of the traditional concept for many years, the clamp or the lack of understanding of the projects at home and abroad that have used the throat clamp connection and achieved good results, some engineering management personnel in most parts of China are not very receptive to this new type of connector.

Matters needing attention in selection of throat hoop connector

1. There are two kinds of throat hoop connectors, forged steel and ductile cast, which have different pressure resistance. It should be selected reasonably according to the actual needs of the project.

2. The ovality of the hoop, the fire resistance of the sealing ring and the corrosion resistance of the screw should be strictly inspected when inspecting the hoop type connector.