|
Recommended Pnc4asfaM± Testing u4temfra6m ofSACserfd, leak Greeter and 5ewrdwy Containment Equipment at 05T Faafiec � PEIIRPI200-17_ .__— ._. _--- -- --_._ _.--
<br /> 7. Using the amonsatic shutoff device manufno- To operate properly, the bill float valve most bei Use this teat procedure in conjunction with the as designed, flow restriction occurs when The tank
<br /> ures's suggested rocedure, examine the properly installed, positioned at the coned height manufacturer's installation and maintenance is no more than 90 percent full, and the link-top
<br /> gB P drop proper Po gh Instructions., fittings are vapor-tight
<br /> tube and shutoff valve to determine it product inside the tank and compatible with UST coMgu-
<br /> flow will be completely shut off at 95 peroem of ration. Vuualiy verify that all tank-top fittings aro leak- If any of the following configurations exirl. the
<br /> tank capacity. Make my adjustments necessary free and vapor-Oght before starting the test prow- overfill prevention system fails the inspection:
<br /> to ensure that flow will be completely shut off 7.2.2 Purpose. The purpose of this inspection is dare. If my fittings are loose, the ball float valve
<br /> P Sw that float valves are installed in storage systems
<br /> who the tank is no more than 95 percent full city,
<br /> verify that the ball boat valve is to rested prop- will not restrict Row. that ere equipped with suction pumps roti air
<br /> sly, operates u designed, and is ser to restrict Row
<br /> S. After inspection of the automatic shutuffdevice, when the link is no mom Um 90 percent fail. Inspect the drop tube to ensure That it does not have eliminators;
<br /> reinstall the drop tube. an automatic shut off device. • the ball is cracked or damaged;
<br /> 7.2.8 Inspection Procedure. • the ball float cannot be removed;
<br /> �'.
<br /> L Remove the ball float valve assembly from the • the orifice is not at the top of the assembly, m is
<br /> tank. clogged with debris or corroded, which would
<br /> 2. Vhuanyrimport the ball float and cage. Remove prevent Proper air flow after activation;
<br /> my debris or foreign objects. • bill float valves are installed with waxiat Stage
<br /> S. Check the ball for links and cracks. It should I vapor =ovary;
<br /> move freely in the cage. Check for corrosion • ball float valves are wed cat tanks equipped with
<br /> dist affects the operation of the ball flat, remote-fill pipes and gauge openings without
<br /> 4. Check the vent orifice in the vent-tutridion the use of "trap dont devices; or
<br /> pipe. It must be open and located near the top of • ball float valves ere installed in storage systems
<br /> ft unit, that also ere equipped with automatic shutoff
<br /> S. Use the ball float valve manufacturer's devices and the ball Rost vane is set in restrict
<br /> installation procedure to determine if vapor flow flow before the tank is 95 percent full.
<br /> m
<br /> 4g will be restricted when the unit is no ora than If the bill float valve does notfuncdon as designed,
<br /> FIGURE 71. Check the drop tube and flapper for dam FF \. 90 percent full. flow restriction does rat occur until the tank is
<br /> age. Make sure that the flapper moves heeyand will -� =� valve come than 90 t full, or the tank-topFilings
<br /> trove into theproduct flowparh. B. After inspectioning of the matall oattumetssembty, ate not va pti'
<br /> reinstall it fallowing Use nrmufacturets installs- Poo- gh4 the ball Boat valve tails the
<br /> Hon instructions. inspection.
<br /> 7.1.7 Pass/Fell CHleria, If Use moment: shut- FIGURE 7.2. Ball float assembly showing the ball in the
<br /> off device functions as designed and complete open position. The ball will float and cover the vapor 7.2.7 Paws/Fall Criteria. The ball flog valve NOTE: When permanently removing a bill
<br /> shutoff of product flow is able to Owor whin the path ffthe product rises above the level of the cag& passes the inspection if the ball flcatvalvefunctions float, more that the entire assembly is
<br /> tank is no mora than 95 percent full, the antmmifc removed so as out m interim with other
<br /> shutoff device passes the h esp clion. methods of overfill privation.
<br /> 7.2.3 Inspection Equipment, Teat equipment •'
<br /> If the stonatic shmoff device does not function shall include: _
<br /> _ 7.3 Overfill Alarms.
<br /> as designed or complete shutoff of product flaw . equipment to remove the vent restriction device;
<br /> is unable to occur will the tank is room than 95 �. - . 7.3.1. General. Overfill alums provide an audi.
<br /> percent full, IM automatic shumff device fails the • tape measure, : - his andfor visible warning to the fuel delivery
<br /> �� driver if the product level in the UST reaches the
<br /> inspection. 7.2.4 Description of inspection. The ball float -
<br /> Valvas. The committee ra( mnxnds valve assembly is removed from the tank inspect- 90 percent level during a atvery. They are open
<br /> 7.2 Ball Float Vafill vert- ed proper operation and measured to ensure that an integral pan of the automatic link gauge (ATO)
<br /> that ball floats be removed fromUSTk as over
<br /> pre 7 system An overfill alarm does not slop or restrict
<br /> tion devices and another method of overfill prevention be the ball float y Is the proper dimension to
<br /> Installed. restrlet flow intonto the the tank when it is no more than product Row.
<br /> 90 percent fun. •; . 7.3.2 Purpose. The purpose of this inspection
<br /> 7.2.2 General. Bail flar
<br /> oat valves e designed = is verify that the overfill alarm is operating cor.
<br /> to restrict product now when product in the tank
<br /> 7.2.8 Preparation. Reform the mmufacurer's - - m redly mdissd to pmvideawaming when thetmk
<br /> reaches a certain level by restricting vapor flow tank chart for the capacity in gallons, the diameter
<br /> from the tankullae.Whenv flow is rratricted, and the volume of product with respect to product FIGURE 73. To avoid damage when remoHngorreln- sscomdse Him 90 percent full.
<br /> g aper level. extract" tool recommend.
<br /> pressure bunds int he lank usage, slowing Over Flow smiling the ball Ron4 me an extract"
<br /> by the ball float manufacturer.
<br /> of product into the tank
<br /> I
<br /> ® p
<br /> pel.orgel.arg
<br /> — . . — Recommended Rxacesfor uelesdng andlierifratim of Spit OserRt leak Deletion and Semndary Containment Equgrrant at USTFadNu I � PEVRP1200-17
<br /> 7.3.3 Description of Test. The urea in S. Reconnect the be cable and tum on wet be pr monitor the product level in storage tanks incand can
<br /> procedures probe p° 8. ELECTRONIC 0. programmed m perform camphorate tesle that )rotund
<br /> this test are for loven ATG stators that are t integral to monitor. MONITORING 02 gph natio and dynamic ("continuons') leak tests, roti
<br /> parts atypical ATG that uses magnet UST. he 9. Set the fuel float in the middle of the probe and 0.1 gph Cprwision") tests.
<br /> proberrorfuellavetrrcasurementsfniheuST7he verify that it is showing the correct inch read- SYSTEM INSPECTION
<br /> ATG probe is removed from the ink. When the ing an the monitoring panel. AND TESTING 8,2,1 ATO Functionality Test
<br /> product float is moved to the position correspond- 8.2.L3 General. TbeATGmustbepro-
<br /> Ing to the 90 percent fill level, the alum should 10. Slowly move the fuel float up the probe until
<br /> activate. the overfill &Into is triggered. If the float 8.1 General. Electronic underground storage tank grunmed using site-specific parameters
<br /> is moved too quickly, it may not trigger the (UST) monitoring systems provide a warning or alar for lheUSTsystemtoensumpmperopera-
<br /> 7.3.4 Preparation. Use this test procedure in when a Ink in the UST system occurs. The monitoring don. 'lister should confirm the required
<br /> conjunction with the monitoring system mmuhco- system and senstrs need to be programmed to reflect setup and testing parameters with Use
<br /> timer's instanatian and maintenance )nstnxsions. iL Measure the distance from the bottom of the the conditions for each individual site to ensure proper owvedoperatm.
<br /> probe to the bottom of the fuel float (confirm operation. For the remainder of this section, the ter
<br /> Refer to the tank manufacturer's tank chert for the different mmufacturefs point of rrreasmemenl On dull float system+, the second float
<br /> capacity in gallons, the diameter and the volume of on the float) when the float first triggers the "ATG" shallte usedtor the hin all electronic UST indicates the level of water in the ink.
<br /> product that corresponds m the product level, alar, monitoring or no welt' an they have al ranforsautomatic tank
<br /> gauge probe or no soklymdeeaonic alarm for sensors 8.2.1,2 Purpose. The purpose of the
<br /> When possible, print out the system semp to verify 12. On Use tank chm, find the volume thin cone- installed "ATG" is a general industry ler that is used to testis to:
<br /> the configuration f the ATG. sponds to the height of the float and densrine identify an electronic tank monitoring equipment,props guraHon a the percent of tank capacity. correct
<br /> whether the ATC) thous the
<br /> 7.3,8 Test Equipment 'lest equipment shall Hefure orating my testing, print out me system condign. caned product level on the console;
<br /> includes Use this fonmla to determine the percent of ration on the ATO console (if equipped with a printer)
<br /> mode capacity at which the alarm was triggered: and verity that site setup p parameters arotted. Make correct
<br /> whether the ATG shows the
<br /> • Iwls for the removal of the ATG probe; Percent Tante Capacity = (product volume sum that the sensors am correctly labeled m indicate thea carredwater level verify that the water the console;
<br /> r
<br /> • tape reunne a gauge stick. when 90 percent alarm tnggcrc&total tank - Iecatioa alar is operating
<br /> volume) x 100correctly and provides a warning a the
<br /> 7.3.8 Test Procedure, Keep completed compliance tuts on file to confit that programmed set point
<br /> 13. Clear the alum audition. during the tum:
<br /> L Measure the product level in the tank riser '
<br /> where the ATG probe has been removed and 14. Compare the measurements in Steps 11 and 12 • the system was continuously powered and monitored WARNING: Water Ingress Into tanks eco-
<br /> compere to the console reading in oanf m ATO in the values programmed into rix root for the data collation period; training othanoWanded gasoline may not
<br /> accuracy. If the reading dues not agree, ronlad 15. Reinstall theATGp •robe. tuck probes and leak senxrswerefunctioningproperly. be detected using water floats designed
<br /> the appropriate person for nonethano"rided gasoline.
<br /> 2. Verify that the overfill alaon the ATG is set to 7.3.7 Paws/Fell CHtada.
<br /> r
<br /> provide a warning when the tank is no more than if the overfill alarm(s) activates when the tanks 8.2L3 Description of Tart. The pro-
<br /> 90 percent full. Consult the link chart for the no rime than 90 percent ran, the overfill alum ,.rwrT W j sedates in this tut ax forspmbt properly
<br /> imb-level setting for 90 percent tank volume. passesthetest _ ' o „ installed per manutacmxw's instructions,3. Verify on theATGnsole that tixovufill dam IF the not fuel level on the console does agree — - equipped with floats having a range inside
<br /> ro
<br /> circuit is operational• with the gauge stick reading, the system fails the the tank roam a[wdr from the bottom to
<br /> 4. Activate Use overfill alar worming to verity
<br /> test, the lop of the link.
<br /> its operation. If found defective, contact the if the overfill signals) does not activate in the ',, The ATG probe is removed from the tank.
<br /> appropriate person. lest mode, it fails the lest The product float and water float positions
<br /> are compared with the console readmit.
<br /> S. Remove the ATG probe cap and disconnect the If the overfill alarm(s) does not activate or or FIGURE &L The lndketorlights and the Cdisplay
<br /> cable from the ATO. activates at my product level above 90 percent on the monitoring console show the status of the 1ST 8.2.L4 Preparation. Use this test pro-
<br /> s. Remove the ATG probe from the teak. Use tank capacity, it fails the test. mem, cedure in conjunction with the mooitor-
<br /> care to mature that the Product float on the stem ing system manufacturer's instanadom and
<br /> does not catch on the bottom of the riser during maintename instructions.
<br /> removal8.2 ATG Probes. ATG probes continuously measure
<br /> the product level in a UST using an in-tank probe an.
<br /> Refer to the rank manufacturer's link
<br /> 7. Inspect the probe. The floats most move freely netted to a console. To properly evaluate its condition, chart for the capacity in gallons, the diern-
<br /> a The stem without binding. the probe needs to be removed from the tank and visually eter and the volume of product that caro-
<br /> inspected sponds to the product level.
<br /> ® pe).org
<br /> pei.org
<br />
|