If the Green Rust has a powdery feel I equate that with Dezincification between the seal and the frame.
Mike Cabral ---- Thom McMahon <[email protected]> wrote: > Since heads are tested to 500PSI, I would think more likely Mis-handling of > heads, It wasn't 25 years ago when MFG's finally came out and said you had > to handle heads in " this manner only" or they may leak. > The Green "Rust" still makes me think Atmospheric conditions like heads in > pool mech. rooms or pools. We've seen this in shower rooms too. Or at the > sea shore, as far as several miles inland. > > Thom McMahon, SET > Firetech, Inc. > 2560 Copper Ridge Dr > P.O. Box 882136 > Steamboat Springs, CO 80488 > Tel: 970-879-7952 > Fax: 970-879-7926 > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Ed Kramer > Sent: Tuesday, December 01, 2009 10:46 AM > To: [email protected]; [email protected] > Subject: RE: O-rings/leaking seat > > Any indications the system pressure may have exceeded 175? We've seen older > antifreeze systems with pressures over 300 (the gauges were pegged) - no > expansion tanks, no pressure relief valves. The sprinks weeped at the seats > just as you've described. They were lucky they didn't have a full blow-out. > > Ed Kramer > Littleton, CO > > > > > Exactly. Bulb is intact. No chance of freezing. No chance of being hit. > > With the rust it's been going on a while. Fitter didn't look at other > > heads. We've not seen this much. Thought it was related to Central > > and o-rings only. Has anyone else had experience with non-o-ring and > > non- Central heads weeping and rusting? These are 25 yo Viking. > > > > _______________________________________________ > 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) > > _______________________________________________ > 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) _______________________________________________ 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)
