COMMERCIAL TANK SPECIFICATIONS

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Tank Wall and Roof Sheets

Sr. No.

Parameter

Description

1

Type

Steel Bolted Liner Tanks

2

Shape

Cylindrical

3

Wind Bearing Empty Design

Acording to AS/NZ1170

4

Type of Steel

Zincalume® or Colorbond® or Colorbond Ultra® Bluescope Steel

5

Wall Steel Grade

G300 8-80 V LOCK Corrugation Bluescope Steel

6

Wall Thickness

Minimum 0.8mm 8-80 V LOCK Corrugation

7

Roof Steel Grade 

G550 Custom Orb Bluescope Steel

8

Roof Type and Truss

Dome Roof - Self supporting structure style. Square hollow section HDG to suit AS/NZS1170 Standards with swivel truss foot.

9

Roof Sheets Thickness

0.42 to 0.48 BMT

10

Truss Coating

Hot dip galvanised as per AS4680

11

Document Requirements

Full technical package including design and load calculations including drawings

12

Applicable Design Standards

Australian and New Zealand Standards



• AS2304 – Water storage tanks for fire protection systems.



• AS/NZS1170 series for Structural design actions



• AS4100 – Steel structures



• AS/NZS4600 – Cold formed steel structures



• AS1657 – Fixed platforms, walkways, stairways and ladders – Design, construction and installation



• AS4680 – Hot-dip galvanised (zinc) coatings on fabricated ferrous articles.


Tank Liner

Sr. No

Parameter

Description

20

Liner Make

As recommended by manufacturer

21

Thickness

As recommended by manufacturer

22

Tensile Strength Standard

(AS 2001.2.3.1-2001)

23

Wing Rip Standard

(AS 2001.2.10-1986)

24

Water Portability Standard

AS/NZS 4020:2005

25 

Flex Cracking Resistance

As recommended by manufacturer

26 

Temperature

As recommended by manufacturer


Tank Accessories

Sr. No

Parameter

Description

27

Ladders

Fixed ladders inside/outside - hot dip galvanised. Outside ladder with cage.

28

Access Hatch

Standard hinged access hatch or commercial type heavy duty with handrails and SS hinges

29

Nozzles

HDPE or galvanised

30

Level Indicator

Mechanical heavy duty bolted to concrete ring beam

31

Air Vent

205.2km/h (57m/s) – Performance level 1 (As per AS 4740:2000 Natural ventilators-Classification and performance)

32

Cathodic Protection

Magnesium Anodes

33

Geotextile

Non-vowen, needle punched as per 175 marv grams per sq mt as per test standardas 3706.1 mass (property)

34

Condensation Strips

As per manufacturers specifications

35

Dust Proofing

As per manufacturers specifications

36

Circular Hoops and Brackets

Load calculated hold down brackets. Hot dip galvanised top and bottom hoops

37

Corrosion Protection

Epoxy coating - Optional as per manufacturers recommendations

38

Nozzle Internal Fittings

Deflector on inlet, anti-vortex on outlet, bellmouth on overflow