We have a 90° Siamese double clapper FDC rising vertically from the ground. The double clapper is hinged at the top. Is there a reason for the double clapper instead of the more common single swinging clapper?
Douglas Hicks General Fire Equipment Co of Eastern Oregon, Inc _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
