To AWWA D100 · hygienic lining for drinking water

Design and fabrication of
water tanks ground and elevated, to standard!

Water storage tanks for municipal, industrial and building use

Building a water tank starts with one question: what is the water for? A drinking-water tank needs a hygienic internal lining, a fire-water tank must always hold a set reserve, and an irrigation tank above all has to be cheap and durable. Next comes the installation site: on the ground on a concrete foundation, or elevated on a steel tower.

Steel water tank built by Behineh Ab
Tank type
Ground, elevated or buried
Shell material
Carbon steel, galvanized or stainless steel
Capacity
From 1 to over 5,000 m³
Shape
Cylindrical or rectangular

Key features

Custom design for the project's capacity, pressure and site conditions
Structural wind and seismic calculations for elevated tanks
Anti-corrosion and hygienic coatings suited to drinking water
Ground, elevated or buried tanks
Non-destructive weld testing (NDT) before delivery
Transport, installation and commissioning nationwide
Steel ground water tank on a concrete foundation

Technical details

Plate thickness is calculated from the height of the water column and the tank diameter. On an elevated tank, wind and seismic loads on the tower are added. Every water tank is fill-tested before delivery, so any weld leak is found in our yard, not after installation.

Behineh Ab has been building steel water tanks since 2003: painted carbon steel, galvanized and stainless. From tanks of a few thousand litres to large tanks built on the project site. Water tank prices are calculated from the fabricated weight.

Technical specifications

Tank type
Ground, elevated or buried
Shell material
Carbon steel, galvanized or stainless steel
Capacity
From 1 to over 5,000 m³
Shape
Cylindrical or rectangular
Internal lining
Hot-dip galvanized or hygienic epoxy
Design standard
AWWA D100 / BS EN ISO 12285

Ground or elevated tank: what is the difference?

A ground tank sits on a concrete foundation and is more economical for large volumes, but it needs continuous pumping to distribute water through the network. An elevated tank uses the height of its structure to supply gravity pressure for distribution without constant pumping, but it adds the cost of the supporting structure and wind and seismic calculations to the project.

The choice between the two usually depends on site topography, the long-term cost of pumping energy, and the need for steady pressure in the network.

Shell material: steel, polyethylene or fibreglass?

Steel and galvanized tanks are the first choice for most municipal and industrial projects thanks to their strength and good weather resistance. Polyethylene tanks are lighter and cheaper to maintain but less strong than steel. Fibreglass is also a good option for water and some non-corrosive chemicals.

The calculations behind a quality water tank

Shell plate thickness is calculated from the hydrostatic pressure of the water column; on elevated tanks, wind and seismic loads on the supporting structure must be checked separately. A hygienic internal lining for drinking water, and the weld and connection details, also directly affect the tank's service life, which can exceed 25 years when these calculations are followed.

Applications and industries

Residential and commercial complexes
Residential and commercial complexes
Factories and production plants
Factories and production plants
Municipal and rural water networks
Municipal and rural water networks
Agriculture and irrigation projects
Agriculture and irrigation projects
Emergency and fire-water storage
Emergency and fire-water storage
High-rise buildings and towers
High-rise buildings and towers

Frequently asked questions

Request a quote
Water tank design & fabrication

Enter the pressure, temperature and fluid; our engineers send a technical proposal and price within 24 working hours.

  • Written technical reply with a proposed concept drawing
  • Site visit in Tehran and surroundings
  • 24-month warranty on fabrication and welding
Call our engineering office
+98 21 4686 6276

Your details are confidential and used only to prepare a technical proposal.

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