This is a fire fighting tutorial video regarding non interlock preaction sprinkler systems or preaction systems or non-interlock preaction sprinkler systems in the Urdu language. It is the basic learning of detailed information. It is also important for Firefighting/MEP technical staff and designers. Here sharing my experience and knowledge that will be helpful to learn & grow for Junior Engineers as well as Senior Engineers and Technical staff. If you found anything which is inappropriate then convey it in the comments for my information and rectification in the future.

00:00 Introduction
00:24 Non-interlock preaction sprinkler system according to NFPA 13
00:48 operation of non-interlock preaction sprinkler system
03:34 Working of non-interlock preaction sprinkler system

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