Which of the following illustrated thermal expansion valves would be appropriate to use on an evaporator coil with a 2 psi pressure drop, where externally adjustable superheat and a replaceable power element are both desired? GS-RA-06

Correct Answer: Option B — B

Thermostatic expansion valves designated as type 'B' incorporate external superheat adjustment and a replaceable power element assembly, making them ideal for modern marine evaporator coils requiring precise control and maintenance flexibility under specific pressure drop parameters.