The upper end of the corrugated pipe is welded to the sealing bowl and the lower end is welded to the valve stem. The corrugated pipe plays the role of the first seal in the valve cover and valve stem hole. In addition, the second seal is the packing gland. Compared with the shortcomings of ordinary packing gate valves that are prone to aging and leakage, the metal corrugated pipe seal is safer and more durable, making the service life longer, the maintenance and replacement frequency greatly reduced, and saving the Unit cost of use.

Valves are mainly connected by flanges and can be processed into butt welding, socket and other connection methods.