Functional Requirements of 1800-1/Min Trailer Pump For Fire Brigade Use

IS 944 - Scope: Key Specifications & Equipment Summary

Scope:
IS 944 specifies the standard equipment and tools for fire-fighting appliances, including detailed quantities and references to related IS codes for each item.

Key Equipment List & Quantities (Selected from Clause 7.5 & Appendix B)

Important Notes:

• Equipment dimensions, materials, and performance follow referenced IS codes (e.g., IS 903 for couplings, IS 2171 for extinguishers).
• Quantities are minimum requirements for standard fire-fighting appliances.
• Appendix B details additional equipment for trailer pumps, e.g., suction wrenches, strainers, and suction adapters.

Summary Diagram of Fire Appliance Equipment Categories

graph TD
  A[Fire Appliance Equipment]
  A --> B[Ladders & Ropes]
  A --> C[Hoses & Couplings]
  A --> D[Hand Tools]
  A --> E[Extinguishers & Foam]
  A --> F[Protective Gear]

  B --> B1[Aluminium Ladder]
  B --> B2[Manila Rope]

  C --> C1[Delivery Hose]
  C --> C2[Double Female Cou

IS 944: General Requirements - Key Specifications & Equipment

• Engine: Minimum 4 cylinders, brake HP sufficient for pump at 0.7 MN/m² (7 kgf/cm²) pressure, petrol engines with dual coil ignition, 12V battery (92 Ah).
• Essential Equipment (Clause 7.5):

• Rounding off values: Follow IS: 2-1960 for test results.

This list ensures operational readiness and compliance with IS 944 standards for firefighting appliances.

flowchart TD
    A[Engine & Power] --> B[Pump at 0.7 MN/m²]
    B --> C[Essential Equipment]
    C

IS 944: Key Materials Specifications (Clause 3.1.1 & 4.10)

Corrosion Resistance

• All water-contact parts must be corrosion-resistant or treated.
• Metal parts exposed to atmosphere require corrosion protection.

Additional Notes on Materials:

• Aluminium alloy 4600 A offers good corrosion resistance and light weight.
• Leaded tin bronze provides excellent wear resistance for moving parts like impellers.
• Mild steel sections must comply with structural strength and durability requirements.

Summary Diagram of Material Selection:

graph TD
    Water_Contact -->|Corrosion Resistant| Aluminium_4600A
    Water_Contact -->|Corrosion Resistant| Leaded_Tin_Bronze
    Atmosphere_Exposed -->|Corrosion Resistant or Treated| Mild_Steel
    Trailer_Chassis --> Mild_Steel_Sections
    Axle --> Carbon_or_Mild_Steel
    Pump_Casing --> Aluminium_4600A
    Pump_Casing --> Leaded_Tin_Bronze
    Impeller_Ring --> Leaded_Tin_Bronze
    Engine_Cover --> Mild_Steel_Sheets

For detailed mechanical properties, refer to IS 617-1975, IS 318-1962, and IS 513-1973.

IS 944: Design and Construction - Key Specifications & Tables

1. Material Specifications (Clause 3.1.1)

2. Equipment & Construction Requirements (Clause 7.5)

IS 944: Workmanship and Finish (Clause 5)

• Clause 5.1: All parts of the appliance shall exhibit good workmanship — smooth, clean, and free from defects such as cracks, sharp edges, or burrs.
• Mass Limitation (Clause 4.10): The complete unit's mass shall not exceed 1150 kg including water, fuel, and oil (excluding equipment in Appendices A & B).
• Finish: Surfaces should be properly finished to prevent corrosion and ensure durability, typically by painting or galvanizing as per relevant IS codes.
• Tools & Accessories: Specifications for associated tools (e.g., sledge hammer 6.5 kg, crow-bars, saws, wrenches) are referenced for quality and compatibility.

Rounding Off (Clause 0.3): Test results must be rounded following IS 2:1960, retaining the same significant figures as the specified values.

Summary Table: Key Points

flowchart TD
    A[Appliance Parts] --> B[Good Workmanship]
    B --> C[Smooth Surface]
    B --> D[No Defects]
    B --> E[Proper Finish (Paint/Galvanize)]
    A --> F[Mass ≤ 1150 kg]
    A --> G[Tools & Accessories per Specs]

This ensures durability, safety, and compliance with IS 944 standards.

IS 944: Instruction Book, Accessories & Equipment Key Points

1. Instruction Book (Clause 6.1)

• Must include operating and maintenance procedures.
• Provide an itemized illustrated spare parts list with reference numbers.

2. Painting (Clause 5.2)

• Appliance painted fire red, Shade No. 536 (IS:5-1978).
• Paint to conform to IS:2932-1974.

3. Accessories & Equipment (Clause 7.5 & Appendix A)

• Equipment list includes items with quantities and relevant IS standards:

IS 944: List of Recommended Equipment for Fire Fighting Trailers

Key Equipment & Quantities (Clause 7.5 & Appendix B)

Trailer Pump Equipment (Appendix B)

IS 944 - Equipment to be Provided in Trailer Pump

Key Specifications (Clause 2.1)

• Pump capacity: ≥ 1800 l/min
• Pressure: 0.7 MN/m² (7.0 kgf/cm²)
• Drive: Internal combustion engine
• Mounting: Permanently on a trailer, pump at rear, towable by standard vehicle

Equipment List (Appendix B, Clause 4.10)

Additional Accessories (Clause 6.2)

• Electric taillight with number plate plug at front
• Essential maintenance tool kit
• Headlight (≤ 150 mm diameter)

flowchart LR
    TrailerPump -->|Mounted on| Trailer
    TrailerPump -->|Powered by| InternalCombustionEngine
    TrailerPump -->|Pump Capacity| 1800l/min@7kgf/cm2
    TrailerPump -->|Equipped with| EquipmentList
    EquipmentList --> SuctionWrenches
    EquipmentList --> SuctionStrainer
    EquipmentList --> DeliveryHoses
    EquipmentList --> ManilaRope
    EquipmentList --> SuctionAdapters
    EquipmentList --> BranchPipes

This summary ensures compliance with IS 944 requirements for trailer pump equipment and accessories.