According to the illustration SE-0019, bellows "I" in the gland seal regulator is actuated by ________. SE-0019

Correct Answer: Option C — gland seal steam pressure

Gland seal regulators utilize internal sensing elements where controlled header pressure acts directly upon internal bellows. As pressure fluctuates, the resulting mechanical deflection positions the valve linkage to maintain stable sealing steam parameters across turbine shaft labyrinths.