Requirements range from positive shutoff, high rangeability, corrosion resistance, and control of cavitation, noise, and flashing. Trimteck engineers and manufactures a suite of power plant control valves to tackle the most challenging applications in the power generation industry.
1. Condensate Pump Recirculation Valve: Used to allow additional flow required through the pump; outlet pressure from the pump ranges from 300 to 600 psi at temperatures from 100⁰ to 150⁰ F; experiences cavitation and must have positive shutoff i.e. a soft seat
2. Deareator Level Control Valve: Maintains a level in the deareator, an open style of feedwater heater. Requirements: High Rangeability; Cavitation Protection at Low Flows; Low Resistance at Increasing Flows.
1. Boiler Feedpump Recirculating Valve: This application is one of the most difficult ones in a power plant as it requires the valve to operate in both on-off and modulating service. Cavitation is present; requires an OpGL with multi-stage ST-2 or ST-4 + CVD-5B trim
2. Startup Feedwater Regulator Valve: This valve is typically located after the HP Heater to control steam extracted from various stages of the turbine to raise the temperature of the boiler feedwater
