Hi Ed - Actually I was taught that yes, the drum drip is to catch condensate, but was also to allow for breakage of a part that was not part of the system so that the system could be returned to service if indeed there was a break from freezing water. Keeping the top valve closed removes the latter reason from the equation and you might as well just have a valve with a plug in it. If the 2x1 or the lower valve breaks, closing the top valve stops the water flow while working on draining the system and returning it to normal dry service and installing the new parts on the drum drip - if the top valve or next fitting breaks, no such safety mechanism exists. This is of much greater consequence when dealing with a drum drip installed with a shoulder nipple into a system tee rather than at the bottom of a long drop pipe.
Garth a fitter ----- Original Message ----- From: "Ed Vining" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, May 13, 2007 12:10 PM Subject: Re: drum drip > We are being sort of nit picky here, but it is interesting. The purpose of the low point drain, of course, is to be able to drain water. Some is condensate, and some may be residual after a dump. Once all drains have been cleared, any water that accumulates will be condensate. > > The purpose of the drum is to allow draining without tripping the DPV. It is not specifically to contain water. Whether water settles in the drum, or above the drum is of no consequence. > > So with a half dozen low point drum drips in a warehouse, I get a little more protection against a leaking drum drip valve, if both are closed. > > Tome for my nap. > > Ed > > [EMAIL PROTECTED] > Ed Vining > 4819 John Muir Rd > Martinez CA 94553 > 925-228-8792 > > > > ----- Original Message ---- > From: Garth W. Warren <[EMAIL PROTECTED]> > To: [email protected] > Sent: Sunday, May 13, 2007 10:19:34 AM > Subject: Re: drum drip > > > what is the point of the drum if the top valve is closed? Top valve should > normally be open. > > Garth > a fitter (I didn't train that other guy....) > _______________________________________________ > 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) > _______________________________________________ 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)
