douglas hicks if the riser feeds a gridded system, you should not remove the pressure relief valve. if there is a remote inspector´s test, it is possible to suck most of the air out of the system via this valve. If this is done on a cold day, and there are no air pockets in the pipe, then on a hot day, you may experience more, and more severe leaking in your system. liquid water expands, ever so slightly with temperature. to be sure, so does the metal pipe, but not near as much as the water.
scot deal excelsior fire engineering good luck finding out if the system is gridded. usually you have trees and branches in business and commercial occupancies. It would be a safer RISK in such circumstances, to take the leaking valve off, in this case. Why? Can I just remove the pressure relief valve. My thought is the designer specified the pressure relief valve for a reason, the valve needs to be in place. _______________________________________________ Sprinklerforum mailing list http://lists.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)
