Oxfam Demountable Tanks

Water storage tank with PVC roof

Demountable water storage tanks are available with sizes ranging from 8,000 litre to 200,000 litre capacity. Tank kits are dispatched complete with assembly instructions, tools, accessories and repair kits. Packed for delivery worldwide.

The tank of choice where large capacity and a 'depth' of water is required. For example for 'in-tank' treatment where settlement and chlorination mixing is required. The depth of water gives a positive pressure head which enables gravity fed distribution.



  • The tanks need no base structure so they can be built on any flat ground.
  • Suitable for all climates.
  • Erected by 3 people within 8 hours.

The Demountable Tank in operation The Demountable Tank in operation

Tank Sizes and Capacities

Tank Diameter
Tank Overall Height
Roof Option
metres
1.53m
2.29m
3.05m
PVC
Steel
Denotes capacity in litres allowing for 0.15m freeboard
2.74
8,138
*12,619* (T10)
17,100
3.66
14,519
*22,515* (T20)
30,510
4.57
22,637
35,102
47,569
5.49
32,667
50,658
68,649
6.40
*44,395* (T45)
* 68,843 *(T70)
* 93,293 * (T95)
7.32
58,075
90,058
122,042
8.23
73,412
113,842
154,272
   
9.15
90,743
140,717
     
10.06
109,689
151,363
     
10.98
130,668
202,632
     
* = Aid industry most common sizes

Click here to download the large tank installation instructions

Click here to download the small tank installation instructions

Material Specifications

Tank Body

The main tank structure comprises 0.80m wide x 3.05m long panels of 22 swg. (0.80mm) corrugated galvanised steel which are punched and curved to suit the tank size. Galvanised round headed bolts with washers and nuts are provided to assemble the steel panels to form a ring of the required diameter and height. The top edge of the steel is protected by a circular plastic capping piece.

Tank Lining

The lining comprises a fully welded watertight bag sized to suit the tank. The lining provided for the harsh environment of emergency aid is a 1.25mm thick nylon reinforced synthetic rubber approved for the storage of drinking water.

A liner is held in position at the top of the tank by clamping between two capping pieces and locking in position using spring clips.

Demountable tank lining installation

Installing Liner

Tank Fittings

3" BSP (M) through tank inlet/outlets are provided for inlet, outlet and (optional) drain connections. The outlet is bolted to the tank body and sealed to the tank lining. 3" BSP (F) gate valves are supplied for use with the outlets and ball valves are available for the inlet.

Demountable tank BSP fitting

3" BSP (M) through tank outlet with 3" BSP (F) gate valve fitted.

Tank Roofs
The standard 'Emergency Aid' roof comprises a central pole and a PVC conical cover that is tensioned by ropes to the outside of the tank body. An access flap is provided.

Galvanised steel roofs are available for extreme environments and where tank security is paramount. A locking access panel is provided in all steel roofs.

Demountable T95 tank with PVC roof Demountable T70 tank with Steel roof

T95 tank with PVC roof
T70 tank with steel roof

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