Laserfiche WebLink
12- t�q d OF sPUT T4fL W 124 <br /> HOW TO LOCATE THE POSITION OF THE <br /> 71SO AT 95%TANK CAPACITY Measuring Stick <br /> The length of the upper tube and the placement of t <br /> the 71 SO valve body determine the shut-off point. <br /> Following the standard Instructions for the OPW <br /> 71 SO will provide for initial shutoff at 95%. In all f <br /> cases,the upper tube length must be a minimum of <br /> 6-1/2"plus the length of the riser pipe. All length I <br /> measurements are in inches. Riser Pipe <br /> INSTR11CTiONSwith Face (A) <br /> Seal Adaptor To Tank <br /> Top(ID.) (9) <br /> . <br /> i.)Find tank capacity(in gallons)from lank To Tank <br /> calibration chart Rrovided by tank manufacturer. Bottom <br /> 2.)Calculaie 95%of capacity. <br /> 1449. 2— <br /> 3.)Locate the 95%volume number on the tank 6 112' <br /> calibration chart. 10' _/ f 1 <br /> Z Figure 1 <br /> 4.) Find the dipstick number(X)which corresponds <br /> to the 95%tank volume. And, find the dipstick <br /> number(Y)which corresponds to the EXAMPLE <br /> 100%volume. «(t'/'o6— z 1.)For an Owens-Coming Model G-3 Fiberglass@) <br /> 5.)Subtract the dipstick number(X)from the tank Tank Calibration Chart:Tank Capacity-10,000 gal., nominal 9,403 gal. <br /> diameter(Y)to rind the upper tube reference NOTE: Use actual capacity only <br /> number(Z). r <br /> (Y1,-(X)=(Z), l 3 X2 / 2.)95%of actual tank capacity=0.95 x <br /> 9403 gal.=8933 gal. <br /> 6.)Subtract 2"hum(L)to find the upper tube depth <br /> (C). �/ J1 3.)The closest number which is less than 8933 gal. <br /> (Z)-2'=C (j —/� Is 8910 gal.Choosing the closest number less <br /> t , than 95%of actual capacity ensures that the <br /> v <br /> 7.)is C less than 6-112"7 /`r initial shutoff will occur when the tank Is no more <br /> NO Upper tube length Is C plus the distance than 95%full. <br /> from the lop of the Face Seal Adaptor 4.)The calibration chart reading of 8910 gal. <br /> installed on the riser pipe to the inside, top corresponds to a dipstick measurement of 82". <br /> lip of the storage(A). <br /> Upper Tube Length=C+(A) 5.) Dipstick number(X)=82" <br /> Tank diameter(Y)=92" <br /> (Y)-(X)=(Z) (92"-82"= 10") <br /> YES Upper tube length is 6-1/2"plus the riser (Z)= 10" <br /> pipe measurement(A). <br /> Upper Tube Length=6.112"+(A) C=8" <br /> NOTE: You must find the actual tank capacity 7.) Is 8"less than 6-112"? <br /> number that correlates to the 6-1/2"+(A)depth <br /> for the station records. This number may also NO Measure the distance from the top of the <br /> be used for the purposes of calibrating an FSA-400 Face Seal Adaptor installed on the <br /> electronic tank level system. riser pipe to the inside, top lip of the storage <br /> tank and obtain measurement(A). <br /> O Regislered T.M.-Owens Coming Fiberglass CoToraUon Upper tube length=C+(A) <br /> 64 <br />