Tank installation

Tank installation

Balmoral Tanks provides a full tank erection service. Each site is inspected by a qualified supervisor prior to tank erection ensuring site and base suitability. An experienced Balmoral team will build your tank and leave it ready for commissioning.

 

Supervisors can also be provided for overseas contracts. Customers should, however, observe the following check points before calling Balmoral to site:

 

Tank supports

Externally flanged tanks at ground/floor level require dwarf walls or piers, made of steel univeral beams, brick or concrete, with footings suitable for the bearing capacity of the sub-soil. The walls should be at least 500mm high and must run in one direction only with centres at 1000mm or 1220mm depending on the plate dimensions. They should extend at least 150mm beyond the tank at each end.

Dwarf walls should be between 150 and 225mm wide and should taper to no more than 110mm at the top to give access for spanners when bolting the bottom joints.

Supports for tanks of 3660mm and over should ideally have capping flats under the bottom flanges to give a greater bearing surface. Alternatively, steel supports may be used, in which case customers are advised to consult Balmoral engineers regarding their design.

 

Access

To allow access to bolts, a clearance of 500mm should be provided all round the tank. When tanks are fitted with covers, a distance of 750mm should be left between the cover and any ceiling to allow access to the manhole. It is the customer’s responsibility to ensure adequate clearance around the tank.

 

Health and safety

Balmoral Tanks reserves the right to refuse to carry out work in unsafe conditions. Erectors will observe site safety rules under relevant national and local health and safety regulations.

 

Delays

Balmoral Tanks reserves the right to make additional charges for delays caused by preparatory work not being completed in accordance with its requirements.

 

Balmoral tank site installation

Minimum space requirements around tanks

Tank type Top of tank <2.5m above FFL
Top of tank >2.5m above FFL
Above tank
Under tank
Fixed scaffold
Mobile tower
IFB
EFB
GRP sectional OD + 500mm
737
559
812
230
50
Steel sectional OD + 500mm
910
610
985
320
70
Cylindrical OD + 1m (500mm must be foundation extension)
OD + 1m (500mm must be foundation extension)
1599
320
70
Epoxy coated steel OD + 1m (500mm must be foundation extension)
OD + 1m (500mm must be foundation extension)
1040
454
100
Concrete N/A
N/A
N/A
N/A
Accessories Tanks with caged ladders require OD + 1m
1200mm
N/A
N/A
Large connections and low level access: ensure sufficient space is allowed

 

Foundation requirements

Tank type
Requirement
Dimension
Level tolerance
GRP sectional IFB - FS
Flat continuous support
ID + 200mm
2mm in any metre and 6mm in any 6m
IFB - CCS
Steels at 500mm centres
ID + 200mm
2mm in any metre and 6mm in any 6m
EFB
Piers/steels at 1m centres
ID + 200mm
2mm in any metre and 6mm in any 6m
IBT
Any of the above
ID + 200mm
2mm in any metre and 6mm in any 6m
Steel sectional EFB metric
Piers/steels at 1m centres
ID + 300mm
Plus or minus 3mm in any metre
EFB imperial
Piers/steels at 1.22m centres
ID + 300mm
Plus or minus 3mm in any metre
Cylindrical  All
Flat continuous support
ID + 500mm
Plus or minus 5mm in any metre around perimeter of tank
Epoxy coated steel All
Flat continuous support
ID + 500mm
Plus or minus 5mm in any metre around perimeter of tank
Concrete  
N/A
N/A
N/A
Accessories All foundations should be free from any local protuberances and irregularities
Specific details should always be checked prior to building of foundations