I can supply you from China used for Hydraulic Turbine Generator
Counter Weight Closing for load trip rejection or overspeed trip.
Motorize with manual hand wheel are seldom used now a days but we have also
what voltage do you need and frequency
On 10/24/11, shababwahid <shababwahid@yaho...> wrote:
> dear all
> for one station of 1 megawatt capacity fracncis unit we need one inlet valve
> PN 25 and DN 500 mm and the length is 350 mm with gear box for manual
> operation to shut on/off. we would like to know which is the best chinese
> valve manufacturer?
> we have also experienced that for manual operation european valves close
> faster than chinese valves for the same pressure and capacity.Is it better
> gear design ?