HP bypass service during startup and operating transitions, with steam conditions and downstream requirements defining the proposed valve configuration.
LP turbine bypass service with pressure reduction and steam-conditioning requirements reviewed for the receiving system.
Controlled steam bypass during plant startup and shutdown sequences, coordinated with the project operating philosophy.
Bypass duty during turbine trip and changing load conditions. Capacity, response and control integration are specified for the project.
Provide inlet and outlet pressure, steam temperature, flow range, required capacity, spray-water conditions where applicable, transient duty and control-system requirements. Pressure reduction and desuperheating arrangements are confirmed for the quoted configuration.
Applicable material, pressure, leakage and project documentation requirements are confirmed for the quoted configuration. Required steam-conditioning performance, actuator response and control interfaces should be specified in the project datasheet.
Conditions describe specific project references, not a rating applicable to every HP / LP bypass valve.
