The 1985 specification outlines the essential criteria for first-aid hose reels utilized in firefighting applications, detailing material selection, structural design, functional performance, and testing protocols. It covers both fixed wall-mounted and engine-mounted hose reel types, emphasizing durability, reliable pressure handling, and user-friendly operation. This guideline is indispensable for manufacturers, installers, and fire safety professionals to ensure compliance and operational safety.
Overview
The 1985 specification outlines the essential criteria for first-aid hose reels utilized in firefighting applications, detailing material selection, structural design, functional performance, and testing protocols. It covers both fixed wall-mounted and engine-mounted hose reel types, emphasizing durability, reliable pressure handling, and user-friendly operation. This guideline is indispensable for manufacturers, installers, and fire safety professionals to ensure compliance and operational safety.
Audience
Contents
Structure
Frequently Asked
Per Clause 3.1 and Table 1 of the standard, the materials designated for hose reel parts are:
This selection ensures the components are durable, corrosion-resistant, and suitable for fire-fighting applications.
Testing involves applying a water supply pressure of 10 bar with the hose fully wound and the nozzle closed for 5 minutes to check for leaks. Subsequently, the hose is completely unwound, maintaining the same pressure for another 5 minutes to ensure no leakage or failure occurs. Additionally, a hydrostatic pressure test at approximately 21 kgf/cm² (around 2.06 MPa) for 5 minutes is conducted on the entire assembly to verify pressure endurance. These tests confirm the hose reel’s reliability under operating conditions.
The standard mandates a minimum water flow rate of 24 liters per minute and a jet range extending at least 6 meters. These tests are conducted at an inlet pressure of 7 ± 0.1 bar with the nozzle positioned 1 meter above the floor and adjusted to achieve maximum effective reach, defined where 50% of the water discharge falls. Furthermore, the hose reel must withstand a maximum working pressure of 10 bar without leakage to ensure operational efficiency.
IS 884 distinguishes two hose reel types: Type A, which is a swinging wall-mounted reel capable of 180° rotation facilitated by swivel joints, suited for building installations; and Type B, a horizontal fixed reel typically mounted on fire engines without swinging capability. The standard details the components, including wall brackets for Type A and specifies thread standards for the inlet stop valve, ensuring correct installation and functionality.
The hose reel undergoes several rigorous tests: a pressure test at 10 bar with the nozzle closed and hose wound, followed by unwinding under pressure to check for leaks; a load test suspending an 80 kg weight for 72 hours on the reel’s spindle or midpoint; an impact test involving dropping a 25 kg hammer from 300 mm on a steel bridge across the side plates; and flow and range tests at 7 bar pressure. These collectively ensure the hose reel’s robustness, capacity to withstand shocks, and reliable performance.
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