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C. Dimensional Requirements: C. Flanged Manways (refer to Containment Solutions literature on gallonage): 1. The standard manway is 22"ID.The 30"and 36'ID manways are 1. Nominal capacity of the tank shall be_gallons. optional. 2. Nominal outside diameter of the tank shall be_feet. 2. All manways will be furnished complete with U.L. listed gaskets, 3. Nominal overall length of the tank shall be_feet. bolts and covers. D. Monitoring Capabilities: 3. Location–see standard tank drawings(pages 15-22). 1. Tanks shall have a space between the primary and secondary 4. The steel manway cover is standard with 4" diameter NPT " ° shell walls to allow for the free flow and containment of all leaked fittings.22'manway covers with an even number of fittings will product from the primary tank. be placed on an 8"radius.Manway covers with an odd number 2. The following continuous monitoring conditions shall be of fittings will have one fitting centered and the remaining compatible with the cavity between the inner and outer tanks: fittings placed on an 8' radius. 30" manway cover fittings are • Vented to atmosphere standard 12'radius.36'manway cover fittings are standard 15° radius. a " • Vacuum–1.5 psi maximum(3"mercury) 5. Manway risers 48" in diameter and 42" high will be supplied to • Positive air pressure(3 psi maximum) provide access to the manway lid.A 24'x 24'galvanized street • External hydrostatic pressure–7' maximum groundwater head box with a cover must be provided by contractor for at-grade pressure over tank top installation. 3. Tanks 6' diameter and larger shall have an integrally mounted 6. Fiberglass manway extension tubes 24"long will be provided for reservoir' installed on the tank for optional hydrostatic the manways. monitoring. The reservoir shall be constructed of fiberglass D. Fill Tubes – Fill tubes of appropriate design will be supplied by reinforced plastic materials and warranted for 30 years against failure due to internal/external corrosion and when properly contractor. installed,against structural failure(same as tank warranty). E. Hydrostatic Monitor Accessories: 4' diameter DWT-6 Type II tanks do not include a fiberglass 1. Brine Antifreeze reservoir. A 4"diameter riser pipe screwed into the 4°diameter Brine Solution Designation: BAS-30 annular space fitting will serve as the reservoir. Chemical Composition: 30%+ calcium chloride, 1% to 3% / 4. Tank shall be designed with one 4"fitting that will access the tank potassium chloride, 1%to 2%sodium chloride, Balance water bottom between the primary and secondary walls (annular Visual Appearance: Green in color, Odorless fluid space). Specific Gravity @ 60°F: 1.272-1.317 5. The double-wall tank monitor shall be capable of detecting a Factory installed on tanks 30,000 gallon and under. Bulk brine breach in the inner and/or outertank under the following installed jobsite installed on 35,000 gallon and 40,000 gallon tanks. conditions: 2. Reservoir Sensor – The FHRB 810 reservoir sensor is a. When the inner tank is empty. specifically designed for installation in the reservoirs of CSI b. When the inner tank is partially or completely full and the double-wall tanks. The components of the sensor are groundwater table is below the tank bottom. compatible with CSI supplied brine solutions.The sensor is also c. When the inner tank is partially or completely full and the tank compatible with any other control panel that accepts normally s partially n completely submerged in groundwater. open or closed switches.The sensor provides two alarm points: 6. The leak detection performance of the hydrostatic monitoring high brine and low brine.The sensor can be wired to a control system shall be tested and verified by a qualified independent panel to provide onlya single alarm ire distinguishing report between high or low alarms) or it can be wired to report bath alarm consultant to detect leaks as small as 0.10 gallons per hour conditions. within a one month period. 4. Tank Gauge Probe–The IPFW Series tank gauge probe shall 7. All monitoring equipment, including FRP reservoirs and be capable of continuously monitoring liquid levels and electronic controls,shall be UL listed or accepted. detecting water in hydrocarbons at the bottom of tanks. The 8. If hydrostatically monitored, any solution used in the tank probe shall be compatible with the liquid it is intended to be annular space shall have UL approval for compatibility with the submerged in and sized properly to fit into the tank without tank and be a contrasting color to the tank surface to facilitate damaging the tank during installation or operation. The tank visual inspection of the tank for leaks prior to burial. gauge probe shall not be rigidly mounted in the tank. 2.02 Accessories F. Turbine Enclosures and Collars: A. Anchor Straps–Provide glass fiber reinforced plastic anchor straps for each tank shown. Number and location of straps shall be as 1. Non-sealed FRP Turbine Enclosure (Model NTE Series) o The specified by manufacturer. Each strap shall be capable of non-sealed turbine enclosure consists le a h in 1l2"i reinforced withstanding a maximum load for each tank diameter as shown. plastic(FRP) enclosure body(variable length in 12°increments, 4'0 — 4,200 lbs. 42'or 48'ID's),an FRP reducer(42"x30°or 48"x30"ID's),and a 6'0 — 18,000 lbs. loose fit FRP lid with handle. The reducer opening must be large 8'0 — 25,000 lbs. enough(minimum 28")to allow for the removal of a 22'manway 10'0 — 25,000 lbs. lid. The lid OD must be small enough to be removed through a Straps shall be standard as supplied by the tank manufacturer. 36"street box.The enclosure body must be capable of joining to B. Certification Plate – Underwriters Laboratories label shall be the 42° or es diameter secondary containment collar with a permanently affixed to each tank. leaktight adhesive joint. 33