HFC 227ea calculation program 7.4

HFC 227ea calculation program is a specialized tool for designing clean agent fire suppression systems that use HFC‑227ea (heptafluoropropane, often known as FM‑200). It helps engineers and system designers determine agent quantities, size cylinders, and model distribution piping to meet target design concentrations and discharge criteria for a wide range of hazards.

Key capabilities:

• Agent quantity sizing based on enclosure volume, temperature, altitude, and hazard class (A/B/C), with adjustable safety factors and design concentrations.
• Enclosure performance checks, including estimated hold time and options to account for door fan test data and leakage.
• Hydraulic network calculations for balanced flow: nozzle orifice sizing, pipe diameters, pressure drops, and discharge times.
• Overpressure and venting estimates to support pressure relief sizing.
• Standards-aligned workflows reflecting common practices in NFPA 2001 and ISO 14520, with user-adjustable factors to match manufacturer data.
• Cylinder selection assistance and bill of materials output, including fill weights and compatible valves, hoses, and nozzles.
• Clear, auditable reports with inputs, assumptions, and results, exportable for submittals.

This program is intended for fire protection consultants, system integrators, and AHJs who need consistent, transparent calculations. Always verify results against current codes, local regulations, and manufacturer-specific guidance, as requirements and environmental policies for HFC‑227ea may vary by jurisdiction.

HFC 227ea calculation program is developed by VdS Schadenverhütung GmbH. The most popular versions of this product among our users are: 7.2, 7.3 and 7.4.