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Flow Characteristics O Rated Flow(established by approval agencies) <br /> MODEL 350AST 2 1/2",3"&4"(STANDARD&METRIC) <br /> FLOW RATES(I/s) <br /> 0.0 12.6 25.2 37.9 50.5 <br /> � 1� 104 m <br /> � a <br /> a - -- 4"(100mm) Y <br /> ��,�0 � 21/2" 65mm 3"(aomm) --- 69 � <br /> � <br /> o --- - o <br /> J "J <br /> W <br /> W � <br /> ? 5 - - - 35 � <br /> � �v� - __- --- -- <br /> w - - _ __ w <br /> � ---- - -- � <br /> a 0 0 � <br /> 0 200 400 600 800 <br /> FLOW RATES(GPM) <br /> MODEL 350AST 6",8"&10" (STANDARDS AND METRIC) <br /> FLOW RATE(I/s) <br /> 0 63.1 126.2 189.3 252.4 <br /> 20 138 <br /> � - - -- _ _ _: — - a <br /> a .15 - - -s^(�5omm) — — 104 v <br /> _ � <br /> v) — 10"(250mm)-- cq <br /> o �� - 8"(2oom�n) - 69 � <br /> � - -- - - -- -- � <br /> � 5 35 � <br /> N — � <br /> W <br /> W � <br /> a � � a <br /> 0 1000 2000 3000 4000 <br /> FLOW R.4TE(GPM) <br /> Typical Installation Capacity thru Schedule 40 Pipe(GPM) <br /> Local codes shall govern installation requirements. Unless oth- <br /> erwise specified, the assembly shall be mounted at a minimum Pipe size 5 ft/sec 7.5 ft/sec 10 ft/sec 15 fUsec <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 0 <br /> o � <br /> �u� PROTECTIVE� <br /> a ENCLOSURE <br /> 0 <br /> o � <br /> � � o <br /> � �� ° \ o <br /> 0 <br /> 12'MIN. <br /> 30'MAX. <br /> DIRECTION OF FLOW � <br /> � :'�-. ZURN WILKINS MODEL 350ASTBG ZURN WILKINS MODEL 350AST <br /> �'��• ' INDOOR VERTICAL MSTALLATION OUTDOOR HORIZONTAL INSTALLATION <br /> Specifications <br /> The Double Check Backflow Prevention Assembly shall be certified to NSF/ANSI 372,ASSEOO 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..l <br /> 1747 Commerce Way,Paso Robles,CA U.S.A.93446 Ph.855-663-9876,Fax 805-238-5766 Date:f3/15 <br /> In Canada � Zurn Industries Limited Document No.BF-350AST <br /> 3544 Nashua Drive,Mississauga,Ontario L4V 1L2 Ph.905-405-8272,Fax 905-405-1292 Produc.t No. Model 350AST <br /> wwWv.aurn.c�� Page 1 of 2 <br />