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Flow Characteristics O Rated Flow(established by approval agencies) <br /> MODEL 350AST 2 1/2",3"8 4"(STANDARD&METRIC) <br /> F�ow Ra,�s(us) <br /> 0.0 12.6 25.2 37.9 50.5 <br /> c� 15 _ 104 ,� <br /> v) a <br /> a - � <br /> . ._ ..-- --- - 4"(100mm) (n <br /> ui 10 _ z iiz° ssmm 3���aomm�— - 69 � <br /> o - - o <br /> J - ._. ___ _ .... -. ..._ � <br /> _ ._ .__—.. __— LLl <br /> W �—_ _ _- ____ -_.___ <br /> � 5 35 � <br /> cn - - - - cn <br /> cn -- W <br /> w - - - -- — � <br /> a 0 - - -- - - - -- 0 a <br /> 0 200 400 600 800 <br /> FLOW RATES(GPM) <br /> MODEL 350AST 6",8"8�10" (STANDARDS AND METRIC) <br /> FLOW RATE(I/s) <br /> 0 63.1 126.2 189.3 252.4 <br /> 20 138 <br /> � - --- - - - - m <br /> a 15 - 6^��somm) -- - 104 � <br /> � <br /> fq 10"(250mm) � <br /> 0 10 8„�2oomm� - - 69 � <br /> w <br /> W --- -- - - - � <br /> - _ _ _ __ _ _ <br /> � - - - - — � <br /> N 5 35 � <br /> v� w <br /> w — � <br /> a 0 0 � <br /> 0 1000 2000 3000 4000 <br /> FLOW RATE(GPM) <br /> Typical Installation Capacity thru Schedule 40 Pipe(GPM) <br /> Local codes shall govern installation requirements. Unless oth- Pipe size 5 ft/sec 7.5 ft/sec 10 ft/sec 15 ft/sec <br /> erwise specified, the assembly shall be mounted at a minimum <br /> of 12" (305mm) and a maximum of 30" (762mm)above adequate 2 1/2" 75 112 149 224 <br /> drains with sufficient side clearance for testing and maintenance. 3" 115 173 230 346 <br /> The installation shall be made so that no part of the unit can be 4" 198 298 397 595 <br /> submerged. 6" 450 675 900 1351 <br /> 8" 780 1169 1559 2339 <br /> 10" 1229 1843 2458 3687 <br /> 12" 1763 2644 3525 5288 <br /> 0 <br /> �0 � <br /> � <br /> �u� PROTECTIVE� <br /> a ENCLOSURE <br /> 0 <br /> o � <br /> U � <br /> o �� � O <br /> 12'MIN. <br /> 30"MAX. <br /> � DIRECTION OF FLOW � <br /> : �°r ':1-. ZURN WILKINS MODEL 350ASTBG ZURN WILKINS MODEL 350AST <br /> INDOOR VERTICAL INSTALLATION OUTOOOR HORIZONTAL INSTALLATION <br /> Specifications <br /> The Double Check Backflow Prevention Assembly shall be certified to NSF/ANSI 372, ASSEO Listed 1015,and supplied with <br /> full port gate valves.The main body and access cover shall be 304L Stainless Steel,the seat ring and check valve shall be <br /> NORYLT"',the stem shall be stainless steel (ASTM A 276)and the seat disc elastomers shall be EPDM.The checks shall be <br /> accessible for maintenance without removing the device from the line.The Double Check Backflow Prevention Assembly shall <br /> be a ZURN WILKINS Model 350AST. <br /> Zurn Industries,LLC � Wilkins Rev.J <br /> 1747 Commerce Way,Paso Robles,CA U.S.A.93446 Ph.855-663-9876,Fax 805-238-5706 Date:8/15 <br /> In Canada � Zurn Industries Limited Document No.BF-350AST <br /> 3544 Nashua Drive,Mississauga,Ontario L4V 1 L2 Ph.905-405-8272,Fax 905-405-1292 Product No. Model 350AST <br /> www.zurn.com Page 1 of 2 <br />