... -600mm 2.Pressure:150-2500LB,PN6-25 Cast Steel Gate Valve With Prices 1.Size: NPS2"-24",DN50-600mm 2.Pressure: ... PN6-253.Material: Cast Iron,Carbon steel,Stainless Steel4.Operation: Hand wheel, gear, square head.5.Standard: GB,DIN,JIS, ... transmission,Air driving,Take pneumatically manually,Hydrodynamic driving,Electric driving(Hand wheel driving omitted),Explosion electric driving.2.Connecting type: ...