What is the required hydraulic pressure test for a hose clamp?

The clamp must withstand a hydraulic pressure of 2.1 MN/m² (approx. 21 kgf/cm²) for at least 2.5 minutes without showing any signs of leakage. (Clause 6.1)

What are the standard sizes available for these hose clamps?

This standard covers two sizes, designed for use on 63 mm and 70 mm nominal bore delivery hoses. (Clause 1.1)

What markings should be present on a compliant hose clamp?

It must be legibly and indelibly marked with the manufacturer's name or trademark, the size (e.g., '63'), and the year of manufacture. (Clause 8.1)

What materials are specified for the clamp body?

The body should be made from Malleable cast iron conforming to IS 2108 or Carbon steel forgings conforming to Class 2 of IS 2004. (Clause 3.1)

IS 5612

: 2000

Specification for hose clamps and hose bandages for fire brigade use, Part 2: Hose bandages

CurrentSpecializedSpecificationFire Safety · Fire Fighting

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This standard specifies the requirements for materials, dimensions, construction, workmanship, and performance of hose bandages. These are used by fire brigades for the temporary repair of leaking or burst fire hoses during an emergency.

Specification for hose clamps and hose bandages for fire brigade use, Part 2: Hose bandages

Quick Reference Values

Hydraulic pressure test (no leakage)2.1 MN/m² (21 kgf/cm²) for 2.5 min

Applicable hose nominal bore sizes63 mm and 70 mm

Material for Clamp BodyMalleable cast iron (IS 2108) or Carbon steel forging (IS 2004)

Material for ScrewSteel with minimum tensile strength of 400 MPa

Protective CoatingHot-dip galvanized or zinc plated as per IS 1573

Practical Notes

Ensure the clamp is marked with the BIS Standard Mark (ISI mark) for quality assurance.

Always use the correct size clamp for the hose diameter to ensure an effective seal without damaging the hose.

Regularly inspect clamps for corrosion or physical damage, especially the screw mechanism, to ensure they are functional in an emergency.