All welded ball valve is widely used in various fields, its superior quality and high performance stability is the common cast steel ball valve which can not be achieved, all welded ball valve service life is far greater than the steel ball valve, full welded ball valve is widely used in city gas, city heating, petrochemical, shipbuilding, steel, power plants and other types of pipeline, pressure regulating station equipment.

Gate valve is a widely used valve. Its closure principle is the gate sealing surface and the valve seat sealing surface is smooth,consistent with each other, it not only prevent the flow of media, but also rely on the top mold, spring or gate shape, to enhance the sealing effect. It plays a main role in the pipeline.

The safe operation of the inspection. We should check the safe operation such as the sealing cover is tightened, the barrier operation, such as power supply and related accessories to ensure safe operation.