Number one, if you have a backflow device you now have two springloaded checks in the system. Two, if you use a listed 13D riser assembly from any of the major manufacturers they come with spring loaded checks. Three, where are spring loaded checks prohibited?
On 7/31/07, Travis Mack <[EMAIL PROTECTED]> wrote: > Is there any reason why you couldn't use a spring loaded check valve in a > 13D system as the system check valve? We have an AHJ that is requiring a > spring loaded check to be removed and a swing check be installed. I thought > the waterflow valves weren't required to be listed in a 13D application. > > Travis > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
