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 CITY OF LEAWOOD FIRE DEPARTMENT OFFICE OF THE FIRE MARSHAL 14801 MISSION ROAD LEAWOOD, KS. 66224-9560 OFFICE: 913.681.6788 x 26 FAX: 913.681.2399 -----Original Message----- From: Greg McGahan [mailto:[email protected]] Sent: Thursday, March 25, 2010 4:00 PM To: [email protected] Subject: RE: Grooved Underground, Thrust Blocks Required? In the past when I have checked, I was told in no uncertain times that Grooved fittings are NOT listed for UG use. Greg McGahan Living Water Fire Protection (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Vince Sabolik Sent: Thursday, March 25, 2010 1:36 PM To: [email protected] Subject: Grooved Underground, Thrust Blocks Required? A quick question about galvanized steel underground... Galvanized 3", about 80 ft, grooved fittings... Would this require thrust blocks? Vince Sabolik Christi Fire Protection, Inc. 11351 Pearl Road Strongsville, Ohio 44136 T 440 572-7730 F 440 572-7719 Email: <mailto:[email protected]>[email protected] _______________________________________________ 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)
