What is the difference between Type 1 and Type 2 hose?

Type 2 has higher pressure ratings (3.0 MPa proof, 5.0 MPa burst) compared to Type 1 (2.1 MPa proof, 3.5 MPa burst) and is designed for more demanding applications. (Table 2)

What are the standard internal diameters available?

The standard specifies nominal bore diameters of 38, 50, 63, and 70 mm. (Table 1)

What markings should be present on the hose?

The hose must be marked with the manufacturer's name/trademark, nominal bore size, type (1 or 2), the words 'IS 14933', and the year of manufacture. (Clause 9.1)

Is this hose suitable for suction?

No, this is a delivery hose designed for positive pressure only. Suction hoses are covered by different standards like IS 3549.

IS 14933

: 2001

High-Pressure Fire Fighting Hose -Specification

CurrentSpecializedSpecificationFire Safety · Fire Fighting

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This standard specifies the requirements for high-pressure fire fighting delivery hoses, commonly used with fire tenders and in high-rise building systems. It covers the material, construction, dimensions, and performance characteristics like proof and bursting pressure for two distinct types of hoses.

High-Pressure Fire Fighting Hose -Specification

Quick Reference Values

Proof Pressure (Type 1)2.1 MPa

Burst Pressure (Type 1)3.5 MPa

Proof Pressure (Type 2)3.0 MPa

Burst Pressure (Type 2)5.0 MPa

Common Nominal Bore Diameter63 mm

Standard Lengths15 m, 22.5 m, 30 m

Kink Pressure (Minimum)1.05 MPa for Type 1, 1.5 MPa for Type 2

Practical Notes

Ensure compatibility with fire hose couplings as per IS 903.

Type 2 hose is intended for higher pressure applications and is more robust than Type 1.

Proper storage away from direct sunlight, heat, and sharp objects is crucial for maintaining the hose's integrity and lifespan.