Question

Why centrifugal pump has no relief valve?

Answer 1

$\sf\red{Answer:-}$Since the pressure inside the centrifugal pump is not as high to damage the system, (as it is due to the centrifugal force imparted by the impeller, which diminishes during impacting on pump casing), that's why it doesn't require a relief valve.

Answer 2

Answer:

$\huge\sf\pink{Answer :}$

Since the pressure inside the centrifugal pump is not as high to damage the system, (as it is due to the centrifugal force imparted by the impeller, which diminishes during impacting on pump casing), that's why it doesn't require a relief valve.