4.2 Water pressure and flow rates
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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 2 - Fire Test Procedures for Water Mist Systems in Accommodation, Public Spaces and Service Areas on Passenger Ships - 4 General Requirements - 4.2 Water pressure and flow rates

4.2 Water pressure and flow rates

 The testing organization should be responsible for assuring that all fire tests are conducted at the operating pressure and flow rates specified by the manufacturer.

For all tests, the system should either be:

  • .1 pressurized to the minimum operating pressure specified by the manufacturer. Upon activation of the first nozzle, the flowing water pressure should be maintained at the minimum system operating pressure; or

  • .2 pressurized to the minimum stand-by pressure specified by the manufacturer. Upon activation of the first nozzle, the flowing water pressure should be gradually increased to the minimum system operating pressure, specified by the manufacturer. The delay time until the minimum system operating pressure is reached should be at least 15 s. The delay time recorded during the tests should be documented and included in the approval of the system.

Parent topic: 4 General Requirements
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