Foam Making Branch Pipe and Foam Inductor- Specification

IS 2097: Scope & Key Specifications

• Scope: Covers specifications for Foam Making Branch Pipe and Foam Inductor used in firefighting systems.
• Capacities: Refer to Table 1 in the standard for detailed capacities of foam branch pipes and inductors.
• Rounding Off: Final test or calculation values must be rounded as per IS 2:1960, retaining the same number of significant digits as the specified value.
• Referenced Standards: Annex A lists related standards that form part of IS 2097 by reference; users should check for the latest editions.

Important Notes:

If you need specific formulas or detailed tables (like discharge capacities or dimensions), please specify, and I can provide those accordingly.

IS 2097 References Summary:

• Referenced IS Standards (Annex A) include specifications for materials related to fire fighting equipment, e.g.:

  • IS 318: Leaded tin bronze ingots and castings
  • IS 410: Cold rolled brass sheet, strip, and foil
  • IS 617: Aluminium and aluminium alloy ingots and castings
  • IS 3444: Corrosion resistant alloy steel and nickel base castings
  • IS 4989: Foam concentrate for producing mechanical foam for fire fighting
  • IS 7882: Aluminium sheet and strip for aircraft purposes

• Rounding Off Rules: As per IS 2:1960, results must be rounded to the same number of significant digits as specified values.

• Certification Marking: Governed by BIS Act, 1986 (Clause 7.2.1).

Key Table Extract (Annex A - Referenced IS Codes)

Practical Use:

• When designing or testing per IS 2097, refer to these IS codes for material specs.
• Use IS 2:1960 for rounding results.
• For certification, comply with BIS marking rules.

graph LR
A[IS 2097 Standard] --> B[Material Specifications (Annex A)]
B --> C[IS 318, 410, 617, 3444, 4989, 7882]
A --> D[Rounding Rules (IS 2:1960)]
A --> E[BIS Certification Marking (Clause 7.2.1)]

This ensures compliance with material quality, testing accuracy, and certification.

IS 2097: Terminology & Key Specifications

• Foam Making Branch Types (by flow capacity):

  • FB 5X: 225 liters per minute (lpm)
  • FB 10X: 450 lpm
  • FB 20X: 900 lpm
  • Inline Foam Inductor: As specified for foam induction inline

• Rounding Off Rules:
  Follow IS 2:1960 for rounding numerical results.

  • Retain the same number of significant digits as specified in IS 2097.
  • Ensures consistency in test and analysis reporting.

• Table 1 (Capacities):
  Defines flow capacities for foam branches (refer to IS 2097 Table 1 for exact values).

• Standards Referenced:
  Annex A lists related standards; always check for the latest editions.

Summary Table: Foam Branch Flow Capacities

This ensures uniform terminology and performance criteria for foam making branches in firefighting systems.

IS 2097: Foam Making Branches - Key Specifications & Design

IS 2097 specifies foam making branches in three types based on flow capacity:

Material Specifications:

• Stainless steel
• Aluminium alloy (including additional grades)
• These materials ensure corrosion resistance and durability.

Design Features:

• Foam branches are designed for efficient mixing of foam concentrate and water.
• Inline foam inductors are also standardized for proper foam generation.
• Typical shape (Fig. 1 in IS 2097) ensures proper aeration and foam quality.
• Branches include air-aspirating ports and diffuser design to generate stable foam.

Performance Criteria:

• Flow rates must match the rated capacities.
• Foam quality and expansion ratio as per fire brigade requirements.
• Pressure loss and nozzle design optimized for effective foam discharge.

flowchart LR
    Water --> FoamBranch[Foam Making Branch (FB 5X/10X/20X)]
    FoamConcentrate --> FoamBranch
    FoamBranch --> FoamDischarge[Foam Discharge]
    FoamBranch --> AirAspiration[Air Aspiration Ports]

For detailed dimensional drawings and performance tables, refer to IS 2097 figures and annexures.

IS 2097: Materials of Construction - Key Specifications & References

IS 2097 covers foam making branch pipes and foam inductors with materials specified for durability and performance in fire fighting.

Key Materials Referenced (Annex A):

Important Notes:

• Materials must comply with the above IS specifications to ensure corrosion resistance, mechanical strength, and durability.
• Foam concentrates and mechanical foam specifications are governed by IS 4989:2006 and IS 7882:1975 respectively.
• BIS certification marking (Clause 7.2.1) ensures quality compliance.

Summary Table of Material Properties (Typical):

flowchart LR
    A[Materials of Construction] --> B[Bronze (IS 318)]
    A --> C[Brass (IS 410)]
    A --> D[Aluminium Alloy (IS 617)]
    A --> E[Alloy Steel (IS 3444)]
    B --> F[Corrosion Resistant Components]
    C --> G[Formed Parts]
    D --> H[Lightweight Components]
    E --> I[High Strength Parts]

**Use these IS codes and material guidelines for selecting construction materials for foam making branch pipes and

IS 2097: Performance Requirements Summary

• Foam Quality Testing (Clause 6.2):

  • Foam must be tested for 25% drainage time per IS 4989.
  • Mechanical foam qualities must comply with limits shown in Fig. 2 (typically foam stability vs. drainage time).

• Rounding Off (General Clause):

  • Final test or analysis values must be rounded as per IS 2:1960.
  • Retain the same number of significant digits as the specified value.

• Capacities (Table 1):

  • Refer to Table 1 for capacity limits (not provided in the context, check IS 2097 Table 1 for specific values).

Important Notes:

Example: Rounding Rule (IS 2:1960)

• If specified value = 1.23, test result = 1.2345 → round to 1.23
• If specified value = 12.3, test result = 12.345 → round to 12.3

flowchart LR
    A[Foam Production] --> B[25% Drainage Time Test (IS 4989)]
    B --> C{Meets Limits in Fig. 2?}
    C -->|Yes| D[Pass Performance Requirements]
    C -->|No| E[Fail - Adjust Foam Parameters]

For exact values and detailed limits, please refer to IS 2097 Table 1 and Fig. 2.

IS 2097: Marking and Identification of Foam Making Branches

Clause 7.1: Mandatory Marking
Foam making branches shall be permanently marked with:

• Manufacturer's name or trade-mark
• Type of the branch
• Flow capacity at rated pressure
• Year of manufacture

Clause 7.2: BIS Certification Marking

• Foam making branches may bear the BIS Standard Mark if licensed under BIS Act, 1986.
• Use of the Standard Mark is subject to BIS licensing conditions.

Key Points:

Additional Notes:

• Rounding of numerical values for marking must comply with IS 2:1960 rules (retain significant figures as per standard).
• For detailed licensing conditions, contact BIS.

flowchart TD
    A[Foam Making Branch] --> B[Marking]
    B --> C[Manufacturer Name/Trade Mark]
    B --> D[Type of Branch]
    B --> E[Flow Capacity at Rated Pressure]
    B --> F[Year of Manufacture]
    B --> G{BIS Certification Mark?}
    G -->|Yes| H[Standard Mark with License]
    G -->|No| I[No Standard Mark]

This ensures traceability, quality assurance, and compliance with IS 2097.

IS 2097 - Testing Methods Summary

• Rounding Off (IS 2:1960):
  Final test results must be rounded to the same number of significant figures as the specified values in IS 2097.

• Foam Testing (Clause 6.2):

  • Foam is tested for 25% drainage time as per IS 4989.
  • Mechanical foam qualities must conform to limits shown in Fig. 2 (typically foam stability and drainage characteristics).

• Capacities:
  Refer to Table 1 in IS 2097 for standard capacities (e.g., load, pressure ratings).

• Referenced Standards:
  Annex A lists related standards (e.g., IS 4989 for foam testing) which are integral to compliance.

Key Formula for 25% Drainage Time (from IS 4989):

[ \text{Drainage Time} = \text{Time taken for 25% liquid to drain from foam} ]

Measured by collecting drained liquid volume over time until 25% volume is reached.

Typical Foam Quality Limits (Fig. 2):

flowchart TD
    A[Foam Production] --> B[Test for 25% Drainage Time (IS 4989)]
    B --> C{Drainage Time within limits?}
    C -- Yes --> D[Accept Foam Quality]
    C -- No --> E[Reject/Adjust Foam]

Note: Always consult the latest edition of IS 2097 and referenced standards for precise values.

IS 2097: Certification and Standard Marking Key Points

Clause 7.2 - BIS Certification Marking:

• Foam making branches may be marked with the BIS Standard Mark.
• Use of the Standard Mark is governed by the Bureau of Indian Standards Act, 1986.
• License conditions for the Standard Mark are available from BIS.

Important Notes on Certification Marking:

• The Standard Mark signifies compliance with IS 2097.
• Final test results must be rounded as per IS 2:1960 rounding rules.
• The number of significant digits in test results should match those specified in the standard.

Related IS References (Annex A):

Summary Diagram: Certification Process Flow

flowchart TD
    A[Manufacturer Applies for License] --> B[BIS Evaluation]
    B --> C{Compliance with IS 2097?}
    C -- Yes --> D[License Granted]
    C -- No --> E[Rectify & Reapply]
    D --> F[Use of BIS Standard Mark]

For detailed licensing conditions, contact Bureau of Indian Standards (BIS), Manak Bhavan, New Delhi.

IS 2097: Operation and Handling - Key Points

• Rounding Off Values:
  Follow IS 2:1960 for rounding numerical results in tests or analysis.

  • Retain the same number of significant digits as the specified value in IS 2097.

• Design Flexibility:
  Various designs (see Fig. 1B) are indicative only.

  • Designs must meet performance parameters regardless of shape/type.
  • For FB 20X branch, holding arrangement should allow two operators to operate simultaneously.

• Capacities:
  Refer to Table 1 for capacities of different types (not provided here).

  • Ensure operation within these specified capacities.

Summary Table (Typical for IS 2097 - Jet/Spray Heads)

Key Formula (General Handling)

• Force required for operation:
  [ F = P \times A ] Where:
  • (F) = Force applied
  • (P) = Operating pressure
  • (A) = Effective area of the actuator

flowchart LR
    A[Start Operation] --> B{Design Type}
    B -->|FB 10X| C[Single Operator Handling]
    B -->|FB 20X| D[Two Operator Handling]
    C --> E[Check Capacity from Table 1]
    D --> E
    E --> F[Apply Force F = P × A]
    F --> G[Operation Successful]

Note: For exact values and detailed capacities, always refer to Table 1 and Fig. 1B in IS 2097.

IS 2097 - List of Referenced Indian Standards (Key Extracts)

IS 2097 references essential Indian Standards related to materials and fire-fighting foam concentrates:

Additional Notes:

• Rounding off of test results must follow IS 2:1960 rules.
• The Bureau of Indian Standards Act, 1986 governs the use of the Standard Mark.
• Refer to Clause 7.2.1 for certification marking details.

This table aids in cross-referencing materials and foam concentrate standards critical for fire-fighting equipment design and testing per IS 2097.

IS 2097: Committee Composition - Key Details

Reference:

• Committee composition is detailed in Annex B of IS 2097.
• The Committee is the Fire Fighting Sectional Committee, CED 22.

Committee Composition Highlights (Annex B)

...and many other government, industry, and research representatives.

Summary:

• The Committee consists of representatives from government bodies, fire services, research institutes, industry, and safety organizations.
• It ensures multi-disciplinary expertise for standard formulation.
• The detailed list includes Chairman, alternate members, and representatives from over 40 organizations.

Diagram: Committee Structure Overview

graph TD
    A[Fire Fighting Sectional Committee, CED 22]
    A --> B[Government Ministries]
    A --> C[Research Institutes]
    A --> D[Industry Representatives]
    A --> E[Fire Services]
    A --> F[Safety & Standards Bodies]

    B --> B1[Ministry of Home Affairs]
    C --> C1[CBRI Roorkee]
    D --> D1[Agni Controls]
    E --> E1[Bombay Fire Brigade]
    F --> F1[Fire Protection Association of India]

For full details, refer to Annex B of IS 2097.