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HOLDDOWN STRAPS: Xerxes FRP straps must be used when a tank is to be anchored. The location of holddown straps for each tank is marked on the WARNING:Do not use air pressure to test tanks that contain tank by the arrow()()symbol.Complete data for holddown flammable or combustible liquids or vapors.The fuel/air mixture straps are given in Figure 7-2 and Table 7-2. may explode and cause death,severe personal injury or property CAUTION:Place the straps only in the locations designated by the damage.Tanks that will be ballasted with a flammable product arrow symbol(><). should be air tested before ballasting. To evenly distribute buoyancy loads,tighten all holddown straps WARNING:If product is used as ballast,exercise special care in uniformly until they are snug over the ribs but cause no deflection handling.Safeguard against sparks,fire or product spills.Improper of the tank.Make an intermediate measurement of the tank diame- handling of product can cause a fire or explosion,and may result ter AFTER the straps have been installed and tightened. in death,severe personal injury or property damage. HARDWARE AND ANCHORING POINTS: INTERMEDIATE DEFLECTION MEASUREMENT Anchoring hardware and anchor points must be sized according After backfill is brought to the top of the tank,make an intermediate to Table 7-3.The installing contractor is responsible for providing measurement of vertical deflection according to the instructions hardware and anchor points of sufficient strength.The particular in Section 13. configuration of hardware will be determined by the owner or the TEST owner's representative.Locate the anchor points as shown in After the tank has been measured and vertical deflection is deter- Table 7-2.Refer to dimension"E".Align all anchor points with the mined to be within the limits specified by Xerxes,the tank must be marked(><)location on the tanks,within a tolerance of ± 1".For tested to ensure that no damage occurred during installation.The specific information on hardware,cable,cable clamps and their procedure in Section 2 Pre-installation Testing should be followed, use,consult the manufacturers of these items. soaping all exposed areas of the tank and all fittings. Because most of the tank exterior is no longer visible,the tank TABLE 7-3 must be tested by checking the gauge at the test manifold for any TANK 3,000& 4,000- 8,000- drop in pressure.Carefully relieve the pressure in the tank and CAPACITY Below 6,000 GREATER remove the hose/valve assembly from dry Double Wall tanks. WIRE ROPE DIA 3/8" 1/2" 1/2" (6 x 19 IPS) ; TURNBUCKLE DIA. WARNING:Do not use air pressure to test tanks that contain JAW/ 1/2" 5/8" 3/4" flammable or combustible liquids or vapors.The fuel/air mixture ' HOOKK 1/2" 3/4" 1" may explode and cause death,severe personal injury,or property ANCHOR RATING(LBS.) 9,000 21,000 25,000 damage.Tanks that will be ballasted with a flammable product should be air tested before ballasting. WARNING:If product is used as ballast,exercise special care in handling.Safeguard against sparks,fire or product spills.Improper handling of product can cause a fire or explosion,and may result in death,severe personal injury or property damage. The tank may be ballasted after the backfill is even with the top of the tank and post-installation testing has been successfully completed Only under wet-hole conditions as described in ® Section 6,should ballast be added before the backfill is even with the top of the tank.When filling the tank,make sure the tank is properly vented.The vent must be large enough to allow the displaced air to escape. oo�da0oo 0 000 �8 00°0°000 80° 0000 q800°0 o�oo� p�O 0°00° 000 oo° p 00o0000 Q• OOOo O�oo�Opp00000 000000 ,'O,• 000 � OO O -_=VIII �I�I-X111 VIII =VIII=IIID�VIII VIII-VIII NOTE:All exposed metal on the holddown straps,tumbuckles and/or threaded rod must be coated or galvanized to prevent corrosion. NOTE:When fastening wire cable,use a minimum of three clamps on each joint. Use shacid"pe or chair-type damps as appropriate.