Fiberglass Water Storage Tank 40000 Litres

• Long Run Light weight New Technology

MANUFACTURING DETAIL OF FRP TANKS 1. CAPACITY: 1. 40000-100000 Ltrs 2. THICKNESS: 1. 24 mm 3. FINISH Internal Surface will be coated by gel coat material. External surface will be top coated by wax added rough finish. 4. COLOUR: Off White pigmented 5. MANHOLE & COVER: Built-in GRP manhole frame with GRP manhole cover. 6. TOP HAT RIBS Tanks have built-in FRP ribs. These ribs provide additional strength to tank and avoid shrinkage. 7. FITTINGS: Tanks have special strengthened areas for fittings as built-in shape as part of the tank. Tanks are provided with overflow and delivery fittings. The fittings are of FRP material. The size of the fittings is as per the capacity of the tank. The tanks shall have air vents for air ventilation. 8. FILLERS: Tanks are manufactured using no fillers. There shall be no Gap in the lamination. 9. U.V RESISTANCE: Tank's external surface is top coated with wax added u.v. top coat polyester resin. Tanks body (laminate) thickness is manufactured using u.v resistance polyester laminating resin. 10. ALGAE RESISTANCE: Tanks have special layer inside the tank wall, which provides protection against algae. Its specifications are as follows: "After building up the tank wall with layers of fiberglass chopped strand mat impregnated with polyester resin, a special layer of mat saturated with black pigmented polyester resin is applied." Further laminations are built up on this special layer to complete the tank wall thickness. 11. TROPICALIZED: Tanks are manufactured using modified tropicalized polyester resin suitable for 100% humidity and 60 degree C. 12. STANDARDS; A. PS 15-69: National Bureau of Standards Voluntary Product Standard “Custom contact molded Reinforced Polyester Chemical Resistant Process Equipment”. B. ASTM D-883: “Definition of Terms Relating to Plastics”. C. ASTM D-2583: “Test for Indentation Hardness of Rigid Plastics by Means of Barcol Impressor”. D. ASTM D-2563: “Recommended Practice for Classifying Visual Defects in Glass Reinforced Plastic Laminate Parts”. E. ASTM D-4097-82 & D-3299: “Standard Specifications for Contact Molded and Filament Wound Glass Fiber Reinforced Thermoset Resin Chemical Resistant Tanks”. F.AS-1692,ULStandard for Safety G.1316-NFPA Fire Safety Standard 13. QUALITY CONTROL: Strict quality control procedures are followed from testing of raw materials to production, assembly and testing on our shop floor. 14.01 DESIGN CRITERIA: Fiberglass reinforced plastic design shall follow the procedures and methods, utilize the equations and formulas, and incorporate the factors of safety and allowable design stresses and strains as set forth in ASTM D-4097, ASTM D-3299 and the provided structural engineer calculations for the tank design. Where design conflicts arise between the various standards, the most stringent design shall be used. a. Seismic Zone____________________ b. Wind Load______________________ c. Chemical_______________________ d. Specific Gravity__________________ e. Temperature____________________ 15. TESTING: (Hydrostatic Method) Tanks are tested by filling with water and keeping it for at least twenty four hours. 16.01 MATERIAL OF CONSTRUCTION: The tanks shall be manufactured with a Nexus veil liner followed by a chopped strand material completed with filament wound fiberglass structural fiberglass over wrap. The resin used shall be a premium grade AOC F010 vinyl ester resin material through out the laminate. Construction of the filament wound fiberglass tanks shall be in accordance with ASTM D-3299. Construction of the contact molded tank dome ends shall be in accordance with ASTM D-4097 and the NBS PS 15-69 specifications. A. Resin: The tanks shall be fabricated using a corrosion resistant vinyl ester resin. Unless otherwise specified, the same resin shall be used throughout all laminates. 1. For Non-fire Retardant Applications: Premium grade vinyl ester resin as manufactured by AOC F010 and recommended by the resin manufacturer for the specific operating environment. 2. For Fire Retardant Applications: Premium grade vinyl ester resin as manufactured by AOC K022 and recommended by the resin manufacturer for the specific operating environment. Add antimony trioxide or pentoxide for Class 1 fire rating to the structural laminate only. B. Catalysts and promoters shall be of the type and amount recommended by the resin manufacturer for use with their resin in the required service. Positive measurement control of catalysts, promoters, and resins shall be maintained at all times. C. No fillers, additives, or pigments shall be employed in the resin. A thixotropic agent for viscosity control may be used in the proportion and type recommended by the resin manufacturer. No thixotropic agent is to be used in the corrosion liner or on surfaces to be in contact with the corrosive environment. D. Resin putty shall be made using the same resin as was used in the original fabrication of the parts to be joined. Resin putty shall contain a minimum 15 percent (15%) by weight of milled glass fibers. A fumed-silica additive such as Aerosil 200 or Cab-O-Sil TS 720 shall be added to increase the viscosity of the putty. The use of silica flour, grinding dust, or other fillers is not allowed. 16.02 REINFORCEMENT: A. Glass fiber reinforcement used shall be a commercial grade corrosion-resistant borosilicate glass, as manufactured by Owens-Corning, PPG, Certainteed, or equal, unless otherwise noted. B. All glass fiber reinforcing shall have an epoxy compatible silane type surface finish and binder that is specifically recommended by the glass manufacturer for the particular resin system to be used. This surface finish should allow the maximum possible chemical bonding between the resin and glass. C. Synthetic surface veil shall be 10 mil thick polyester surfacing veil, such as Nexus. D. Mat shall be Type E (electrical grade) glass with nominal fiber length of 1.25" + 0.75". E. Continuous glass roving used in chopper guns shall be Type E chopper roving. F. Woven roving shall be 24 oz./yd.2 Type E glass with a 5 x 4 plain weave. G. Continuous roving used in filament wound construction shall be Type E glass winder roving with a yield of 200 yards or more per pound. H. Unidirectional reinforcement shall be weft unidirectional fabric, Type E glass, 15.7 oz./yd.2 as manufactured by Excel, Kytex, Brunswick or equal. 16.03 METAL HARDAWRE: A. Exterior metal hardware such as anchor lugs, lifting lugs, bolts and attachment clips shall be fabricated from type MS steel. B. Exterior fasteners shall be made from type MS steel. 17. RAW MATERIALS USED : All raw materials used are purchased from leading companies of the world and they conform to relevant specification 18. WARRANTY: Tanks are warranted for 15 years from the date of supply against Manufacturing defects and leaks.

Domestic and Upside Export