Link points to Internet Archive / others. Not hosted by InfraLens. Details
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
EN 13565-1:2019European Committee for Standardization (CEN), Europe
HighCurrent
Fixed firefighting systems - Foam systems - Part 1: Requirements and test methods for components
Specifies requirements for components like foam branchpipes and proportioners (inductors) for foam systems.
UL 162 (8th Edition, 2017)Underwriters Laboratories, USA
HighCurrent
Standard for Safety for Foam Equipment and Liquid Concentrates
Covers testing and certification of foam-making equipment, including portable nozzles and eductors (inductors).
NFPA 11:2021National Fire Protection Association, USA
MediumCurrent
Standard for Low-, Medium-, and High-Expansion Foam
A system design and installation standard that references component standards like UL 162 for equipment specifications.
BS EN 13565-1:2019British Standards Institution, UK
HighCurrent
Fixed firefighting systems. Foam systems. Requirements and test methods for components
The British national adoption of the European standard EN 13565-1, making it functionally identical.
Key Differences
≠IS 2097 specifies a precise inlet connection (63 mm Male Instantaneous coupling per IS 903), whereas international standards allow for various regional connections (e.g., Storz, NST, BSP) as specified by the purchaser.
≠International standards like UL 162 and EN 13565-1 are intrinsically linked to a mandatory third-party certification (listing/marking) scheme (e.g., UL Listed, CE Mark) which involves rigorous initial type testing and ongoing factory production control audits. The BIS certification for IS 2097 has a different regulatory framework.
≠IS 2097 specifies a fixed hydrostatic test pressure of 21 kgf/cm², while EN and UL standards typically require a pressure relative to the component's maximum rated working pressure (e.g., 1.5 times).
≠The tolerance for inductor accuracy in IS 2097 is a simple +20% / -0% of the rated value. NFPA 11 and EN standards have a more complex tolerance, often stated as 'not less than rated and not more than +30% of rated or 1 percentage point, whichever is less', providing more flexibility for higher concentration foams.
Key Similarities
≈All standards mandate the use of corrosion-resistant materials for construction, such as stainless steel, bronze/gunmetal, and specific aluminium alloys, to ensure longevity and compatibility with foam concentrates.
≈Core performance tests are common across all standards, including determining the foam expansion ratio and the 25% (quarter) drainage time to ensure the foam quality meets firefighting requirements.
≈All standards require permanent and legible marking on the equipment, including manufacturer's name, model number, flow rate, and nominal operating pressure.
≈The fundamental operating principle and purpose of the equipment (using the Venturi effect for inductors and aeration for branch pipes) are identical across all standards.
Parameter Comparison
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
What is the standard operating pressure for foam branch pipes and inductors?+
The equipment is designed to operate optimally at a pressure of 0.7 MPa (7 bar).
What are the standard capacities covered by this code?+
The code typically covers FB-5X (225 liters/minute) and FB-10X (450 liters/minute) capacities.
What is the hydrostatic test requirement?+
The components must withstand a hydrostatic pressure of 2.1 MPa for a duration of 2.5 minutes without showing any signs of leakage or permanent deformation.