Necessity of Performance Prediction Diagnostic Tester(TVAT)
before malfunctioning

• Turbine Valve Hydraulic Actuators are core devices of nuclear power plants and thermal power plants., Although high durability and reliabilit y r eisquired due to thecharacteristic of power generation facilities, the present inspection method can only carry out maintenance limited to specific hydraulic actuators that are checked to have trouble and it can not be diagnosed without separating the hydraulic actuator from the system.
• It is a portable on-site performance prediction diagnostic tester that doesn’t have to go through the inconvenience of separating the hydraulic actuator for unnecessary maintenance and reinstalling. It does not incur huge maintenance cost and allows the full inspection within a fixed maintenance period.

• Actual preventive maintenance is possible through preliminary full inspection and performance evaluation without separating the Turbine Valve Hydraulic Actuators from the steam valve system.
• Maintenance cost dramatically saved thorough saving in whole inspection and repair.
• Ensures reliability of power generation maintenance through power plant self-certification test before installing system.