IS 2097:2012 is the Indian Standard (BIS) for foam making branch pipe and foam inductor- specification. This standard specifies the requirements for materials, dimensions, construction, and performance testing of foam making branch pipes and inline foam inductors used in fire fighting systems to produce mechanical foam.
Foam Making Branch Pipe and Foam Inductor- Specification
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Hydrostatic Body Test | 21 kgf/cm² (approx. 20.6 bar) for 2.5 minutes | 1.5 times the maximum rated working pressure for 5 minutes | EN 13565-1:2019 |
| Inductor Proportioning Accuracy (for 3% concentrate) | 3.0% to 3.6% (+20%, -0%) | Not less than 3.0% and not more than 3.9% (+30%) or 4.0% (+1 percentage point), whichever is less. | NFPA 11:2021 |
| Branch Pipe Body Materials | Prescriptive list: Stainless Steel (IS 3444), Aluminium Alloy (IS 617), Leaded Tin Bronze (IS 318) | Performance-based: Corrosion-resistant materials like bronze, austenitic stainless steel, or materials with equivalent protection. | UL 162 |
| Minimum 25% Drainage Time | Not less than 60 seconds | Shall meet the requirements for the specific foam concentrate type it is tested with (e.g., as per EN 1568-3). | EN 13565-1:2019 |
| Nominal Working Pressure | 7 kgf/cm² (approx. 6.9 bar) | Tested and rated for a range of pressures, typically from 5 bar to 10 bar (75 psi to 150 psi) or higher. | UL 162 |
| Minimum Expansion Ratio (Low Expansion) | Not less than 1:5 | No single minimum; the expansion ratio is determined during testing and must be within the manufacturer's stated specifications for the listing. | UL 162 |
| Inlet Connection | 63 mm Male Instantaneous (per IS 903) | As specified by the customer (e.g., 2.5 inch NST, BSP; Storz C-52) | General practice in EN/UL standards |