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n <br /> Installation Guide: Commercial AdvanTex® Systems <br /> �5t�p 61'�t�f���'���►rc����`iQ��a1irE�' ��:.E!$$!� E �€` �_�:��((((��r F�E <br /> •__ .> ,.e ...-.�..,._.d ,m,.m REF..FYrszS.h � �m.r!St.r._��,k <br /> I <br /> Recirculation valves provide a flow split for accuracy in recir- Manifold <br /> culating treatment systems. Made of a PVC"buoy cage" and <br /> E rubber float buoy,these valves automatically control the filtrate <br /> return flow and liquid level within a tank.When the float buoy Stinger <br /> is not seated(when there is no flow into the system),these <br /> valves redirect the filtrate to the recirculation tank.As effluent <br /> enters the tank and raises the liquid level,the valve can be set Buoy cage <br /> to divert 20%to 100%of the filtrate to the discharge line. o a , <br /> IMPORTANT.- Be careful not to spill glue or primer onto the <br /> float buoy.Any distortion of the buoy from glue or primer may <br /> cause the valve to maffiinction. . <br /> Step 6a: The stinger must be field-cut to length. Cut the 3" ' <br /> PVC pipe to the length specified in the engineering plans and <br /> glue it to the manifold and top of the buoy cage. <br /> x �, Buoy <br /> IMPORTANT• Stinger length is calculated according to theWf <br /> system design and should be listed on the engineering plans. If Re#aining bar <br /> the length is not specified, contact your system engineer. zF. <br /> Ballast loop <br /> Step 6b: Before installing the recirculation valve,make sure <br /> the float buoy moves freely within the cage. There should be <br /> 1/8"to 114" clearance between the buoy and the inside wall of <br /> the cage. Changes in elevation or temperature may cause the ;. <br /> buoy to expand or contract,altering this clearance. if buoy <br /> clearance is beyond the range specified,unthread the plugs <br /> holding in the retaining bar on the bottom of the cage,remove t �. <br /> the buoy from the cage, and adjust the air pressure in the buoy <br /> accordingly. When reassembling the apparatus,be sure to insert <br /> the buoy into the cage with the ballast loop pointing down. <br /> Step 6c: The recirculation valve is typically installed in the <br /> riser over the recirculation tank's inlet tee. (Refer to your engi- `. <br /> neeringPlans for proper location and settings.)Lowerwer the <br /> assembly into the tank and connect it to the filtrate return line <br /> and discharge line. The valve must be installed level and <br /> placed so as not to interfere with the inlet tee. <br /> NOTE: If the recirculation valve inlet and outlet holes are not <br /> predrilled on the riser, see Appendix, Grommet Installation <br /> Instructions,on page 12. <br /> NIM-ATX-AX-2 @ 2003 Orenca Systems*Inc. <br /> Rev 1.0,2/03 <br />