What are the temperature requirements when using high-temperature PTFE pipes?

The high temperature PTFE pipe has good adhesion resistance, and the inner wall of the pipe is not easy to adhere to the colloids and chemicals of the steel-plastic composite pipe. After the coolant flows through the steam generator, it is then sent back and forth by the main pump to the reactor, continuously bringing out the heat in the reactor and converting it to produce steam. The high-temperature and high-pressure steam coming out of the steam generator drives the turbine-generator set to generate electricity. The exhaust steam condensed into water in the condenser, and then sent to the heater by the condensate feed pump for reheating and then sent back to the steam generator. This is the two-loop loop, the ring system.