HVAC · Practice-Exam-1 · Problem 54PDFSolution in PDF ↓
HVAC · Practice-Exam-1 · Problem 54
Problem & Solution
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Problem: 20GPM of oil with specific gravity of 0.88 flows through a valve with a valve coefficient of 4.5.
Approach: So there's a nice handy equation in the reference handbook which you can find by searching valve flow coefficient and that equation is CV which is the...
Key step: So we're going to do 20 over 4.5 quantity squared times 0.88 and that equals 17.4 PSI.
Watch out: What's nice about this equation is even if you have something that's not water, right?
Result: So we're going to do 20 over 4.5 quantity squared times 0.88 and that equals 17.4 PSI.
✅ Answer: C
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