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FM Approval or UL Listed Deluge Valve?

Question asked by talaypt on Nov 19, 2018
Latest reply on Nov 19, 2018 by chriscarlson

Dear Sir, 


I do have a queries on the certify body for the deluge valve.


As there are some brands which are certified by UL Listed only or FM Approval only. Hence I would like to understand about these certificates in more details i.e. What are the difference? Which one is better? 


Please someone share about this topic.


Thank you