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PEIlRP1200-12 alarm devices must automatically restrict flour or alert 7.1.5 inspection Nocedure. the transfer operator When Obc tank is 110 more than 1.Remove the drop tube from the tank. 90 pei+ccnt full.Th is approach retlects the more conserva- tive application of like rtkles. 2.Visually inspect the autnmatic shutoff valve and float mhanisrrt for any damage and remove 7.1 Automa#la Shutoff Devices, any debris or foreign objeets_ 7.1_1 General. Automatic shutoff devices, 3,iulanually move the float mechanism to ensure it sometimes called flappers or Flapper 'valves, are moves freely, an integral part oX the drop tube assembly lwaalled 4.With the-float mechanism ixl the shutoff(closed) within the tank fill riser. They are designed to positiou, visually inspect the drop tube and initially restrict and subsequently completely shut vciify that the shutoff valve is released and will off` flow when product has =chLd predetermined move into the product flaw path, levels duriTig a deliver+. Automatic shutoff valves geed to I properly positioned And 6perete freely to S.If possible, verify that the bypass valve in the coaml flow and proven tank overfills. drop tube is open and Free of blockage, 7.1.2 Purpose. *Me purpose of this inspecti€kn 6.Tr problems with the shutoff valve are found and is to verify the autamadi shutoff valve is installed defective components need repair or replace- properly, operates its dcxigncd and is set to cone- mot. notify the appr.'Ofriate person. pletely shut oft`flow when the tank is no more than 7.Using the autornalic shutoff device rnanufac.- 95 percent full. tur"-s skiggested procedure, extimirke the drop 7.:L,3 Description of Inspection. After a pro- tuhe and shulnff valve to determine if product Lbribiary inspection of the automatic shutoff instal- flaw will he completely shut off at 95 percent of Iadanp the drop tube is removed from the tank.The tank capacity. Makc any+ adjustments oecessary autoiatic shutoff is checked for proper opMtion, to ensure that Flow will he compietely shut oft' and its placement is ineasured to verify that it ,s when the tank is no more than 95 perc=t fitll, properly heated to completely shut off#low when the.tank is no krone than 95 pumit full. Y 7.1.4 preparation. Refer to the tank manufac- j turer`s c:alibratlon chart fnr the capacity in gal- lops, (lie diaurketer and the volume of product with mspect to product level, It Use automatic shutoff device has s float that extends from the drop tube in the shutoff(clmcd) position, verily the proper orientation of the float mechanism.The float mechanism should be orient- ed away from any obstructions(ball float,subtnw- ible. turbine pump (STP), tank wall, tank gauge probe, etc.) if[he movement of the float n=ha- nism is restricted,it will not function as designed. Use this prnctdore ixr eonjunction with the manu- FIGAJRE 7-:1. Check the drop tube and flapper for dam- tscn=rN installation and main[enanoe instructions. age, like sure that ft flapper moves freely and sht►ts off Bow when extended. 7.1-5 Inspectlon Equipment. Test equipment -- shall include: S.After insp tion of lhc;autuniatic shutnrFdevice, tools for��cri7oval of the droll ttkhe; n;install the drop tubwc, tape ttkeasure; 7.1.7 Pass/Fall Criteria. If the automatic shut- tools for inspection of the automatic shutoff. off deviou furkctions as designed and c,oinl3lcte .shtlWIT of product flow is able to occur when the pei.org