... 24",DN50-600mm 2.Pressure: Class150-2500LB,PN6-253.Material: Cast Iron,Carbon steel,Stainless Steel4.Operation: Hand wheel, gear, square head ... Air driving,Take pneumatically manually,Hydrodynamic driving,Electric driving(Hand wheel driving omitted),Explosion electric driving.2.Connecting type: Flange,Interior whorl ... categories of the type of powder and slurry fluid Cast Steel Gate Valve With Prices