4.5 Function (see 5.5 ) [6.5]
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Assembly - IMO Resolution A.800(19) – Revised Guidelines for Approval of Sprinkler Systems Equivalent to that Referred to in SOLAS Regulation II-2/12 – (Adopted on 23 November 1995) - Appendix 1 - Component Manufacturing Standards for Water Mist Nozzles - 4 Water Mist Nozzle Requirements - 4.5 Function (see 5.5) [6.5]

4.5 Function (see 5.5 ) [6.5]

  4.5.1 When tested in accordance with 5.5, the nozzle should open and, within 5 s after the release of the heat responsive element, should operate satisfactorily by complying with the requirements of 5.10. Any lodgement of released parts should be cleared within 60 s of release for standard response heat responsive elements and within 10 s of release for fast and special response heat responsive elements or the nozzle should then comply with the requirement of 5.11.

  4.5.2 The nozzle discharge components should not sustain significant damage as a result of the functional test specified in 5.5.6 and should have the same flow constant range and water droplet size and velocity within 5% of values as previously determined per 4.4.1 and 4.4.3.

Parent topic: 4 Water Mist Nozzle Requirements
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