Pressure to Open and Pressure to Close Valves

Question

Explain your choice of a pressure-to-open (normally closed) or pressureto- close (normally opened) valve in the following scenarios:

a) A valve on a cooling water line which is used to cool down a reactor hosting an exothermic reaction

b) A valve on a water line heading to a treatment plant before being released in a river

c) A valve on a gas stream (containing SO2) going to an absorption tower before being released to the atmosphere

Summary

This question belongs to physics and discusses about cooling water line used to cool down a reactor hosting an exothermic reaction.

Word count: 124