Friction Loss Formula for Fire Hydaulics - Cheat Sheet ...
Service test i. 20 minutes – 100% @ 150psi ii. 10 minutes – 70% @ 200psi iii. 10 minutes – 50% @ 250psi 6 iv. 10 minutes – 100% @ 165psi (optional) (overload or spurt test) A minimum of 10psi should be maintained on the compound gauge when taking water from a hydrant. 100% capacity @ 150psi net pump pressure 70% capacity @ 200psi net ...
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