What is the capacity of this extinguisher?

The nominal capacity is 50 litres (Clause 3.1).

What is the minimum required throw distance?

The extinguisher must achieve a minimum effective throw of 6 metres (Clause 8.3).

What is the test pressure for the extinguisher body?

The body must be hydrostatically tested at 3.5 MPa for 2.5 minutes without leakage (Clause 9.3.1).

What types of fire is this extinguisher for?

It is designed for Class A (ordinary combustibles) and Class B (flammable liquids) fires.

IS 13386

: 1992

Specification for fire extinguisher 50-litre capacity, mechanical foam type

CurrentSpecializedSpecificationFire Safety · Fire Fighting

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This standard specifies the requirements for material, construction, performance, and testing of 50-litre capacity mechanical foam type fire extinguishers. These are typically trolley-mounted units used for fighting Class A and Class B fires, common in industrial and high-risk environments.

Specification for fire extinguisher 50-litre capacity, mechanical foam type

Quick Reference Values

Nominal Capacity50 litres

Minimum Liquid Fill Volume50 litres

Minimum Percentage of Discharge95 percent

Minimum Discharge Time60 seconds

Minimum Effective Throw6 metres

Hydrostatic Test Pressure (Body)3.5 MPa

Burst Pressure Test (Body)5.5 MPa

Practical Notes

This type of extinguisher is particularly effective on fires involving flammable liquids like oil and petrol (Class B).

Regular maintenance, including checking pressure, hose condition, and foam concentrate quality, is critical and should follow IS 2190.

These are large, heavy units; ensure personnel are trained in their safe and effective operation.