Perhaps this is semantics. Or perhaps I admittedly know very little about UG because we sprinkler guys don't do this in this neck of the woods. You said
"So unless you are connecting to a pipe, fitting or joint type that can come apart under increased pressure, lack of compaction or some type of movement, you don't need thrust blocks." I thought thrust blocks (or restrained joints) were to deal with the force generated by the moving mass of water changing direction at a fitting. Not really a pressure thing. Footings (?) would be to deal with soil compaction or support issues? Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Thom McMahon Sent: Friday, March 26, 2010 10:54 AM To: [email protected] Subject: RE: Grooved Underground, Thrust Blocks Required? The question of would thrust blocks be required is almost self answering. Why do we use thrust blocks? To prevent pipe movement. Why do we want to prevent pipe movement? So the pipe joints don't come apart. Do Groove joints come apart by increased pressure or lack of compaction of soils? No. So unless you are connecting to a pipe, fitting or joint type that can come apart under increased pressure, lack of compaction or some type of movement, you don't need thrust blocks. 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 Vince Sabolik Sent: Friday, March 26, 2010 9:52 AM To: [email protected] Subject: Re: Grooved Underground, Thrust Blocks Required? No, this is a minor amount of pipe, connecting one part of a system to another. I'm sure that this has been done by most everyone here at one time or another. My question was "Would thrust blocks be required"? _______________________________________________ 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)
