What are the standard sizes covered by IS 8442?

The standard covers Type 1 (63 mm waterway) and Type 2 (75 mm or 100 mm waterway) monitors. (Clause 3.1)

What is the required hydrostatic test pressure?

The monitor body must be tested to a hydrostatic pressure of 2.1 N/mm² (21 kgf/cm²) for 2.5 minutes without leakage. (Clause 8.1)

What materials are specified for the body?

Materials can include carbon steel (conforming to IS 2062), stainless steel, or gunmetal (conforming to IS 318). (Clause 4)

What is the minimum required movement range?

The monitor should have 360° continuous horizontal rotation and a vertical movement from at least +85° to -45°. (Clause 5.4)

IS 8442

: 2008

Stand post type water and foam monitor for fire fighting -Specification

CurrentSpecializedSpecificationBIMFire Safety · Fire Fighting

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This standard specifies the requirements for stand post type water and foam monitors used in fixed fire protection installations. It covers materials, construction, dimensions, performance criteria, and testing methods for monitors of different sizes.

Stand post type water and foam monitor for fire fighting -Specification

Quick Reference Values

Minimum operating pressure0.7 N/mm²

Hydrostatic test pressure2.1 N/mm² for 2.5 min

Min flow rate (Type 1, 63mm)1750 l/min at 0.7 N/mm²

Min flow rate (Type 2, 75mm)2850 l/min at 0.7 N/mm²

Min flow rate (Type 2, 100mm)3500 l/min at 0.7 N/mm²

Horizontal rotation360° continuous

Vertical movement range+85° to -45°

Practical Notes

Ensure compatibility between monitor inlet flange and the stand post flange as per IS 1538 or IS 6392.

Performance (throw and flow) is highly dependent on the available pressure at the monitor inlet; verify pump capacity and hydraulic losses in the piping.

Regular maintenance, including swiveling and greasing of joints, is crucial for reliable operation during an emergency.