Given a pressure difference of 1 inch water column, what is its equivalent in PSI?

To determine the equivalent pressure difference of 1 inch of water column in PSI, we utilize the relationship between inches of water and psi.

Pressure in psi can be calculated using the formula:

[

1 \text{ inch of water} = 0.0361 \text{ psi}

]

Therefore, for a pressure difference of 1 inch water column, the equivalent pressure in psi is approximately 0.0361. This calculation is derived from the fact that the weight of a column of water exerts pressure, and the conversion factor shows how much that pressure translates into pounds per square inch.

This understanding is crucial in HVAC applications, where pressure differentials are frequently influenced by the density of fluids and their application in various systems. Consequently, recognizing that 0.0361 PSI directly corresponds to 1 inch of water column makes it clear why this is the correct answer.