Water Supply & Drainage Division

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• SEKISUI TANKS
• TYPES OF TANK
  • F-Panel Tanks
  • Insulated Tanks
  • Econo Tanks
  • Earthquake-Resistant
    Tanks
• TYPES OF PANEL
• MMD vs. SMC
• MORE THAN PANELS
• CERTIFICATION
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• Dehydrators
  • CS type
  • BPS type
  • L type
  • SX type
  • NS type
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• Wastewater Treatment
  Devices
  • Rotating Biological Contactor
    • Installed examples
  • ESROTAE
    • Installed examples
  • AQUACUBE
    • Installed examples
  • SKBiO
    • Installed examples

One size and style does not fit all. At Sekisui we have consistently listened and responded to the demands of our customers who desire special products for special situations.

Earthquake-Resistant Tanks

Superior Design Proven Safe
For Superior Earthquake Resistance

The most important point of a tank's design for earthquake resistance is the ability of its rigid construction to survive the specific oscillation frequency of the seismic waves (the oscillation frequency of the strongest wave of an earthquake). Through an abundance of practical test data, Sekisui also offers an earthquake-resistant panel tank which utilises our proprietary "box frame" construction (externally reinforced) for excellent stability and high rigidity.

Using this wealth of data and accompanying computer analysis, Sekisui is able to offer the utmost precision in design of the most highly reliable panel tank on the market today. And it is through this care in design that we are able to offer an earthquake resistance which can handle a horizontal seismic intensity of 0.3 - 2.0G, easily responding to a variety of customer needs.

Proven Data From Earthquake Simulation Testing

Tests have proven that Sekisui tanks can withstand an earthquake's specific oscillation frequency and protect against resonance when the height of the tank installation is above 10 meters.

You will need to install "Adobe Shockwave Player" in order to view this video of the earthquake-resistant tests.

How Sekisui Tanks Withstood Disaster

During the Great Hanshin Earthquake of 1995, water and electrical lines were destroyed and people were no longer able to carry on with their normal everyday lives. Throughout the chaos and disorder, Sekisui panel tanks withstood the 7.2 magnitude earthquake and protected and preserved the water they were holding. These reserves were able to supply water to those in need, helping ensure their survival.

After the earthquake, Sekisui performed earthquake testing on its F-panel tanks. Subsequently, Japan - often referred to as the "Country of Earthquakes" - adopted the data determined during these tests as the new standard for earthquake-resistant water supply equipment.