5.0 Water Mist Nozzle Marking
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.668 – Alternative Arrangements For Halon Fire-extinguishing Systems In Machinery Spaces And Pump-rooms – (Adopted on 22 December 1994)Amended by MSC/Circular.728 - Annex - Guidelines for the Approval of Equivalent Water-Based Fire-extinguishing Systems as Referred to in SOLAS 74 for Machinery Spaces and Cargo Pump-rooms - Appendix A - Component Manufacturing Standards of Equivalent Water-based Fire-extinguishing Systems - 5.0 Water Mist Nozzle Marking

5.0 Water Mist Nozzle Marking

Parent topic: Appendix A - Component Manufacturing Standards of Equivalent Water-based Fire-extinguishing Systems

5.1 General

 Each nozzle complying with the requirements of this Standard should be permanently marked as follows:

  • (a) trademark or manfacturer's name

  • (b) model identification

  • (c) manufacturer's factory identification. This is only required if the manufacturer has more than one nozzle manufacturing facility

  • (d) nominal year of manufacturefootnote(automatic nozzles only)

  • (e) nominal release temperaturefootnote(automatic nozzles only)

  • (f) K-factor. This is only required if a given model nozzle is available with more than 1 orifice size.

 In countries where colour-coding of yoke arms of glass bulb nozzles is required, the colour code for fusible element nozzles should be used.

5.2 Nozzle Housings

 Recessed housings, if provided, should be marked for use with the corresponding nozzles unless the housing is a non-removable part of the nozzle.

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