Features

Main features of the externally reinforced Bridgestone GRP tanks:

Water Quality

  • The tanks are approved for potable water in Australia (ASNZS4020) and in the USA (NSF61)
  • Stored water makes contact with GRP surfaces only and does not make contact with steel components. There is no internal reinforcement, there are no internal tie-rods, no risk of internal corrosion
  • The tanks are completely sealed from dust, bugs, vermin and light—therefore contamination is rare, algae and micro-bacterial colonies will not form and evaporation is zero
  • Smooth mirror surface of panels prevents bacterial growth
  • The need for chlorine dosage is significantly reduced
  • The hot pressing method for producing panels eliminates styrene and makes the tanks ideal for drinking water
  • Unique floor design ensures free flow drainage when cleaning.

Strength and Durability

  • Tanks are engineered with an 8 times safety factor of panel strength over maximum anticipated load
  • No service failures reported in 30 years
  • Tested for heavy impact, all weather conditions, loads, earthquakes
  • The tanks meet the Standards for fire sprinkler, hydrant and pump suction tanks (AS3500, AS2118.1)
  • Design life is for zero maintenance for at least 40 years
  • All inspections can be carried out outside, not inside the tank. Washing is rarely needed but the tank floor is designed to drain and dry completely
  • The modular tanks are light (GRP panels are one third the weight of equivalent steel panels)
  • Quick and efficient to assemble - special equipment is not required for assembly, even where access is difficult
  • Modular construction reduces time on site, enhances safety, eliminates waste, reduces clutter and leaves a clean site.
  • Lower thermal conductivity (0.004% of steel) means tanks are suitable for extreme Australian sun
  • Long life UV protection
  • Not susceptible to corrosion
  • Access available from bottom and all sides—all repair and maintenance is done on the outside

Adaptability

  • The tanks are modular and can be assembled in new buildings, on elevated towers, and as replacement tanks in established sites
  • Sizes range from 10 kilo-litres up to 12 mega-litres
  • Tanks can be expanded or reduced in size, or dismantled and removed to another site

Bridgestone Corporation