Question

A 1-in (internal diameter) pipe is used to supply water to a low-pressure tank with an MAWP of 20 psig. The water is supplied through a regulator from a source with a maximum pressure of 100 psig. Determine the diameter of a conventional spring-operated relief required to protect the vessel from a regulator failure. Be sure to state clearly any assumptions and your justifications for them.

Answer 1

3.4 inches

Step-by-step explanation:

Determine the diameter required to protect the vessel from a regulator failure ( relief diameter )

A =
`(\pi d^2)/(4)`

Hence d =
`\sqrt{(4A)/(\pi ) }` =
`\sqrt{(4 * 9.08)/(\pi ) }` = 3.4 inches

attached below is the remaining part of the solution