Model foam performance through area and time. Check concentrate demand using presets and custom inputs. Build reliable suppression layouts with clear exportable engineering results.
Application Rate = Foam Solution Flow ÷ Protected Area
Required Solution Flow = Design Application Rate × Protected Area
Adjusted Solution Flow = Required Solution Flow × Safety Factor
Concentrate Flow = Adjusted Solution Flow × Concentrate Percentage
Total Concentrate = Total Solution Volume × Concentrate Percentage
Total Solution Volume = Adjusted Solution Flow × Duration
The calculator applies the density-area approach: determine the protected area, select a design application rate, size the required foam solution flow, then estimate concentrate and water demand from concentration and time.
Expanded foam volume is estimated from the total finished solution volume multiplied by the selected expansion ratio.
| Scenario | Units | Area | Rate | Safety Factor | Duration | Concentrate | Adjusted Flow | Total Concentrate |
|---|---|---|---|---|---|---|---|---|
| Hydrocarbon spill example | Metric | 96.00 m² | 4.10 L/min/m² | 1.10 | 20 min | 3% | 432.96 L/min | 259.78 L |
| Tank seal example | Imperial | 500.00 ft² | 0.300 gpm/ft² | 1.15 | 30 min | 3% | 172.50 gpm | 155.25 gal |
It is the amount of finished foam solution discharged onto each unit of protected area during each minute. It helps size pumps, proportioners, storage, and discharge devices.
Foam systems mix concentrate with water at a specified percentage, commonly 1%, 3%, or 6%. That percentage directly determines how much concentrate storage is required for the selected duration.
A safety factor adds margin for real-world losses, design conservatism, and uncertain field conditions. It can help with preliminary sizing before the final engineered system is verified.
Yes. Enter the available solution flow to calculate the actual application rate and compare it with the design need. The result block will flag whether the entered flow is adequate.
Expanded volume estimates the final aerated foam quantity after solution expansion. It is useful when checking containment fill, discharge behavior, and general planning for low, medium, or high expansion systems.
No. They are planning examples that help you start a calculation quickly. Final values should always be confirmed against the applicable standard, hazard type, foam listing, and manufacturer guidance.
Yes. If you enter the discharge capacity per device, the calculator estimates how many devices are needed by dividing the adjusted flow by the device capacity and rounding up.
It is best for screening, budgeting, and preliminary engineering. Use it alongside detailed hydraulic calculations, reviewed layouts, and the governing project documents before final approval.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.