Introduction to z11y pressure self tightening forged steel gate valve:

Forged steel gate valves have three bonnet designs. The first is the bolted bonnet. For the valve designed according to this design form, the valve body and bonnet are connected with bolts and nuts, and the spiral wound gasket (made of 316 clip flexible graphite) is sealed. Metal ring connection can also be used when customers have special requirements. The second design form is the Welded Bonnet. For the valve in this design form, the valve body and bonnet are connected by threads and sealed by full welding. When the customer has special requirements, it can also adopt full welding connection. The third is the pressure self tightening bonnet. For the valve designed according to this design form, the valve body and bonnet are connected by threads, and the internal pressure self sealing ring is sealed.