v = Q / A, with A = π·(d/2)². Excessive velocity causes water-hammer and noise.
Result
- Velocity
- 3.18 m/s
- Velocity
- 10.44 ft/s
- Within 6.1 m/s limit?
- Yes ✓
Formula: v = Q / (π · (d/2)²)
Reference: NFPA 13 / EN 12845
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