Specification hose binding machine
1985 Edition

IS 3744 defines vital component sizes for hose binding machines used by firefighting units, with detailed dimensions presented in Figures 1, 2, and 3 of the standard, all measured in millimeters. Key parts include the revolving sleeve with a maximum diameter of 350 mm, rods with springs and guides, the binding adopter, and the mounting bracket. These dimensions ensure compatibility with standard Indian fire hoses and couplings, supporting proper manufacturing and functionality.

The standard recommends using structural steel (IS 226-1975) for most components such as mounting brackets, threaded spindles, revolving sleeves, rods, wire spools, and guide rollers, with grey iron castings (IS 210-1978) as an alternative for mounting brackets. Springs should be manufactured from spring steel wire conforming to IS 4454 (Part 1)-1981, while wire spools may also be made from high tensile brass as per IS 304-1981. The entire machine should be coated with durable red and black paint, avoiding plating on parts susceptible to abrasion to prevent finish degradation.

According to IS 3744, each hose binding machine must bear clear and permanent markings indicating the manufacturer's name or trademark and the year it was produced. Additionally, the machine can display the ISI Certification Mark, signifying adherence to Indian Standards under ISI’s quality assurance and inspection framework. These markings ensure traceability, quality validation, and conformity to regulatory requirements.

While IS 3744 does not explicitly list performance tests, typical evaluations include verifying the binding strength to ensure the coupling remains secure under operational loads, assessing the device’s durability through repeated use cycles without failure, confirming smooth operation of the revolving sleeve, and ensuring dimensional accuracy for compatibility. These tests guarantee reliable performance in firefighting scenarios.

The revolving sleeve is engineered to rotate smoothly around the threaded spindle, allowing operators to bind hose couplings with less physical effort and reduced hand strain. Its standardized dimensions provide a comfortable grip and effective force transmission, improving operation speed and reducing fatigue during use. Constructed from durable structural steel (IS 226-1975), it withstands repeated use while enhancing overall efficiency.

Yes, mounting brackets must be fabricated from either structural steel conforming to IS 226-1975 or grey iron castings as per IS 210-1978. They are a mandatory component of the hose binding machine and must meet precise dimensional and workmanship standards detailed in Figure 2 of the standard. This ensures mechanical strength, durability, and seamless integration with other machine parts.

Manufacturers must ensure all components comply with specified IS standards for materials, including structural steel, grey iron castings, spring steel wire, and brass as applicable. Each machine should undergo thorough inspection and testing to verify adherence to the standard's requirements. The use of the ISI Certification Mark indicates conformity with these quality controls, and test results must be rounded following IS 2-1960 guidelines to maintain reporting consistency.