Main Steam

Main Steam

Description

The Main Steam System transports high pressure, superheated steam from the NSSS to the Steam Turbine. The piping and valves are sized and routed in such a manner that there is minimal pressure loss but flexibility to compensate for expansion due to the heat added from the steam’s operating temperatures. This includes a bypass system that routes the steam directly to the condenser during startup and to permit the reactor to maintain load for an indefinite amount of time in the event of a turbine trip.

Specifications

Data

Design Pressure: 475 psig
Design Temperature: 600 deg F
Design Flow Rate: 1,450,000 lb/hr
Material: A335 GrP11
Size: 24 inch NPS