A PSB Power Plant Valve, or Pressure Seal Bonnet Power Plant Valve, is a type of valve specifically designed for high-pressure applications, typically exceeding 1,000 psi, commonly found in power plants. This valve features a pressure seal bonnet, a design that uses the system's pressure to enhance the seal, reducing the risk of leaks compared to traditional bolted bonnet designs. PSB Power Plant Valves are critical for maintaining safety by preventing over-pressuring, thereby protecting people, equipment, and the environment.