Plumbing Fire Department Connection Flow Calculator
Actual independently qualified simultaneously delivering FDC inlet flows sum, not derive available fire flow from connector count or sprinklerK. Actual independently matched units, regime, material/equipment and governing references; not a hydraulic code, safe pressure, water pot ability or operational approval.
Description
FDC flow totals combine simultaneously delivering inlet flows.
FDC flow totals combine simultaneously delivering inlet flows.1
Connector count alone does not establish available flow. The calculation and input requirements are explained below.
When to use Plumbing Fire Department Connection Flow Calculator
Enter nonempty nonnegative independently qualified simultaneous FDC inlet flows in gpm.
How to use Plumbing Fire Department Connection Flow Calculator and how it works
- Prepare the measurements or independently established model inputs described below, with matching units and observation scope.
- Enter the required fields and run Plumbing Fire Department Connection Flow Calculator.
- Read the result fields using the formula, output units, signs and ordering explained below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualIndependentlyQualifiedSimultaneousFdcInletFlowsGpm | Actual Independently Qualified Simultaneous Fdc Inlet Flows Gpm. Use the units and matching context stated in the calculation below. | array of number | Required; other constraints below |
Enter nonempty nonnegative independently qualified simultaneous FDC inlet flows in gpm. Sum to return total gpm. Connector capacity and available supply are not generated.
totalFdcFlowGpm=sum(simultaneousInletFlows) Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Numeric result under the formula and output units explained above. | number |
{
"input": {
"actualIndependentlyQualifiedSimultaneousFdcInletFlowsGpm": [
10,
20
]
},
"output": {
"result": {
"value": 30
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Plumbing Fire Sprinkler Pressure From Flow Calculator for a complementary operation: A sprinkler K factor relates residual pressure to discharge.
Use Plumbing Fire Sprinkler K Factor Flow Calculator for a complementary operation: A sprinkler's listed K factor relates residual pressure to discharge flow.
References
Similar or alternative tools
- Plumbing Fire Sprinkler Pressure From Flow Calculator
A sprinkler K factor relates residual pressure to discharge.
- Plumbing Fire Sprinkler K Factor Flow Calculator
A sprinkler's listed K factor relates residual pressure to discharge flow.