So where does it say that these are not AWWA pipe size groove fittings? (See Vic style 31 or 307 couplings and 100-c, 10-c,11-c,12-c,13-c, or 20-c, 33-c,35-c,----------) All of these are AWWA listed to meet underground water supplies as ref. in the front of 24.
Just because we think of grooved in Iron Pipe Sizes doesn't mean that 24 thinks of them in IPS and not AWWA Ductile Iron Pipe sizes. A groove fitting is a Groove fitting until it's not quite all grooved fittings. 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 Frank Herrick Sent: Thursday, March 25, 2010 3:28 PM To: [email protected] Subject: Victaulic OK'ed for underground service Per NFPA 24 NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances, 2010 Edition Chapter 10: 10.3.1 Threaded Pipe and Fittings. All threaded steel pipe and fittings shall have threads cut in accordance with ASME B1.20.1. 10.3.2 Groove Joining Methods. Pipes joined with grooved fittings shall be joined by a listed combination of fittings, gaskets, and grooves. 10.8.1 General. 10.8.1.1* All tees, plugs, caps, bends, reducers, valves, and hydrant branches shall be restrained against movement by using thrust blocks in accordance with 10.8.2 or restrained joint systems in accordance with 10.8.3. 10.8.1.2 Piping with fused, threaded, grooved, or welded joints shall not require additional restraining, provided that such joints can pass the hydrostatic test of 10.10.2.2 without shifting of piping or leakage in excess of permitted amounts. 10.8.1.3 Steep Grades. On steep grades, mains shall be additionally restrained to prevent slipping. 10.8.1.3.1 Pipe shall be restrained at the bottom of a hill and at any turns (lateral or vertical). 10.8.1.3.2 The restraint specified in 10.8.1.3.1 shall be to natural rock or to suitable piers built on the downhill side of the bell. 10.8.1.3.3 Bell ends shall be installed facing uphill. 10.8.1.3.4 Straight runs on hills shall be restrained as determined by the design engineer. FRANK J. HERRICK _______________________________________________ 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)
