Hola. the AtP system works when you have something pumping into your AtP. We can't just buy an ansul pump and make an AtP system without something *bringing *the *required *water flowrate to the new AtP unit. and, you would do your customer a service to put a suction side pressure limiting device in service, unless you are feeding from a relatively static source...such as a distant water tower (which is not this case). The reason for the suction pressure limiting device is, AtP needs a minimum boost pressure across the pump for the venturi effect to work. So you are looking at a second pump, the problem being, does your first pump have the capacity?
Check your first pump again (I didn't go to the link, sorry for being that lazy), and see if at low pressures, if you *can *get the necessary flow rate required by NFPA 30. If so, then it is OK to use the existing fire pump to simply dribble the water into your new AtP system, whereby the new pump can boosted your foam-water mix to the desired pressure *and *proportion your foam correctly. al asado, cosas no esta yiendo tan bien para Chavez [Amuay], pero ese gato tiene mucho vidas. scot deal excelsior fire engineering -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120902/6f226902/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
