Gate valves should not be used to throttle fluid flow because…
A. the tortuous flow path through a gate valve body makes flow control difficult.
B. gate valves must be fully opened and backseated to prevent stem leakage.
C. the turbulent flow created by a partially opened gate valve will cause erosion damage to the valve seat.
D. the large size of the gate valve disk requires an oversized actuator to accurately position the disk.
Share your understanding of this question with the correct explanation.