The curved edge at the bottom of your tank is known as a knuckle.
Water tank design standards.
The radius of this knuckle should not be less than.
Injection molded polyvinyl chloride pvc pressure fittings 4 in.
Through 65 in 100 mm through 1 650 mm for waterworks.
Awwa has design standards for public water systems for different types of tanks.
This standard applies to design of welded steel reservoirs and standpipes.
Recommended rules for design and construction of large welded low pressure storage tanks.
American water works association standard for welded steel tanks for water storage.
Corrugated steel tanks such as steelcore corrugated steel tanks are designed to all local building codes and asce7 10.
Applicable standards awwa d100 11 welded carbon steel tanks for water storage.
Radius should not be less than the maximum thickness of the cylindrical walls of your tank.
The flexible membrane liners inside our steelcore tanks are awwa compliant and nsf61 certified for domestic water use.
Conventional hydropneumatic tanks are typically cylindrical vessels installed horizontally either completely buried or more commonly partially.
The minimum thickness of the knuckle.
100 mm through 300 mm for water wastewater and reclaimed water services.
25mm for tanks with a diameter less than 1 8m and 38mm for larger tanks.