◆Product Overview Hydraulic controlled quickly close the valve installation and main steam turbine, blast furnace gas pressure of the steam extraction pipeline power generation unit(TRT) admission line such as security rating system,for emergency cut-off valve:there was a crisis conditions in the system,emergency in 0.3~0.8 seconds off valve,realize reliable cutoff of piping, effectively prevent the turbine rear steam and condensate flow backward or cut off the gas pipeline, protect the safety of the steam turbine unit.