BONNET DESIGN FORMS

• A bolt-type bonnet. In the valve designed in this design form, the valve body and the bonnet are connected with bolts and nuts, and the wound gasket (made of 316 clip flexible graphite) is sealed. When customers have special requirements, they also can use metal ring connection.
• A welded bonnet. For a valve designed in this form, the valve body and the bonnet are connected with threads and are fully welded and sealed. When customers have special requirements, they can also use full welding two connections.
• The pressure self-tightening cover. The valve designed in this form has the body and the cover connected with threads, and the internal pressure is sealed by a self-sealing ring. It also can be designed as Y-type valves.