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ISD Flow Meter Installation Guide Installation Steps.Vacuum Assist System Below Shear Valve <br /> �n ���wwi io„ eett <br /> t <br /> - - - - - - - - - - - - - - -Dispenser hydraulics cabinet i Inches <br /> __j <br /> I Vapor return line I <br /> from dispenser I <br /> I I <br /> I I <br /> Vapor return line I <br /> /shear valve <br /> ---- -- --------------- <br /> --------------- I ViewA-A <br /> Top of pedestal island I ------ --_-- - --- -----------------I <br /> o Q -4 b 1---------- ---- --- ^- ---------------I d b p���° <br /> Q� Q� -� ----------------I- ° 00 <br /> �' 4 <br /> g0 io 0 t �4 ISD Vapor e 'o 0 1 O <br /> o�/�'0 lQ4��Q I } /Flow Meter A I p�°�ad�0 �� <br /> 4 I I I o <br /> 0 <br /> -M <br /> ��0 r��0 r�°0 PI Approx- I g p��j��r 0 <br /> 4 Uv 0 Q�I B inches A I r��i 0 ,�A <br /> 4 0pg0<30� 1 ° p- <br /> '�o'�d�a <br /> �—Approx. I <br /> ITbackpressure <br /> 6 inches <br /> Approx. <br /> I 22 inches I <br /> I I <br /> I x <br /> equired'Y'fitting for <br /> Itroducing liquid during I <br /> IP-201.4 dynamic I <br /> test. <br /> I � I <br /> Main vapor <br /> I return line Dispenser sump I <br /> — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — <br /> VERTICAL ACCESS HORIZONTAL ACCESS WMPkm,b.ePc <br /> FITTING INSTALL FITTING INSTALL <br /> Figure 3. Example flow meter installations with approximate clearances <br /> 7 <br />