Benefits PRDS used in turbine bypass applications help to protect the turbine during start-up, power trip and also for part load generation. Turbine by pass valve prevent venting of steam into atmosphere and allow the steam to be dumped into condenser, so that energy can be saved to generate high temperature Boiler Feed Water. Applications: Thermal Power Plants and Cogeneration Plants All process plants like Fertilizers, Petrochemical, Refineries, Pharmaceuticals, Sugar Pulp & Paper, Steel, etc.