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WELD- MISER ' TEE-LET® Welded Outlet /�►n� Fittings vILStar• 9 Fire Products ono" d Amr intentstmei Submittal Sheet MERIT® UNIFIED DESIGN SERIES Merit's Unified Design Series carries all important • Threads are cut in accordance with the requirements design considerations into its entire line of welding of ANSI B1.20.1, national standard for tapered pipe branch outlet fittings. threads, or ISO -7 -1 threads are available. Merit® Weld- Miserml Tee -Lets® are designed - - - - • Tee -Let threaded and grooved welding outlet fittings and Manufactured to reduce the amount of weld are UL /ULC Listed and FM Approved for use in the required to install the Tee -Lets on thin wall or fire sprinkler systems installed in accordance with the proprietary flow pipe. Typically only one weld -pass requirements of NFPA Bulletin 13. They are rated for completes the installation. Merit Tee -Lets install with less 300 PSI operation in fire sprinkler systems, and higher weld volume than any other brand of welding outlet pressures in other non -critical piping systems. fittings for fire sprinkler applications. To accomplish this: • Tee -Lets are offered in a wide variety of header sizes. • The contoured end of the fittings employs a reduced The consolidated header sizes shown in the following outside diameter. Two major advantages are charts allow the fittings to be installed on more than immediately apparent: one header size, permitting the first size listed to fit • The thinner wall on the contoured end permits welding the header perfectly, while a small gap along the temperatures to be matched to the thickness of longitudinal center line of the header will appear for the branch line or main thereby insuring complete the second size listed. penetration without cold welds, weld roll -off, burn- • Merit® Weld- MiserTM Tee -Lets® are identified by a lot through or excessive distortion. number that provides full traceability per ISO 9000 • On smaller sizes a heavier section is maintained specifications. on the threaded end of the fitting. This protects the threads from damage during shipping and handling prior to installation as well as from weld distortion. FOR YOUR PIPING SYSTEMS SPECIFY WELD- MISERTM' TEE - LET® • Each outlet size 1 and larger, whether male or Branch Outlet Fittings shall be Merit Weld -Miser Tee -Let, female threaded, cut grooved or beveled requires the Lightweight forged steel, employing low weld volume same hole size in the header pipe. This simplifies the profile to provide for full penetration welds with minimum installation process. burn through and pipe distortion on Schedule 5 thru 10, proprietary thin wall, and standard wall pipe. Threads are to be ANSI 81.20.1, or ISO -7 -1, and the bore of GENERAL SPECIFICATIONS the fittings calculated to improve flow. Welding outlets to • Tee -Let welding outlet fittings are manufactured from be UL Listed, FM Approved for use conforming to NFPA, highly weldable steel which conforms to the chemical Bulletin 13 and pressure rated for 300 PSI maximum. and physical requirements of ASTM A -53, Grades A or B, Type E. Ease of installation is assured when automatic welding equipment is used to install Merit Tee -Lets. PAGE 2 Of 5 Merit® Tee -Lets & Drop Nipples For the latest UUULC Listed and FM Approved pressure ratings, versus i e schedule, REV. 03.03.06002 go to www.anvllstar.com or contact your local AnvilStar representative p p =)AISDe1L