Inevitably we all design a project where the pressures from the flow test are less then desirable. We layout our fire sprinkler heads and pipe to do a preliminary calculation and input our flow test into the calc program. It’s then we realize, we can’t get a safety factor on the system…our calc fails. So we do our normal routine of increasing pipe sizes, changing k-factor of heads, and changing the pipe schedule of pipe to be used but nothing seems to work. After every trick in our bag is exhausted, nervousness sets in…..thoughts of fire pumps and an uncomfortable meeting with the general contractor cross our mind. Continue reading “Low Flow Test Pressure? Try High Efficient Sprinkler Head Spacing”
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