Bladder Tank/Layflat Tank/Pillow Tank - Water


Bladder tanks in operation

These water bladder tanks, often referred to as layflat or pillow tanks, have been developed especially for the harsh emergency aid environment.  There are two specifications, one for economic water storage and the second for heavy duty multi-site storage applications and water transportation.

The tanks can be unrolled and used on any area of flat ground which has been cleared of debris.




  • Suitable for all climates.
  • Bladder tanks are ideal for fast deployed storage of drinking water.
  • Installed by 2 people within 5 minutes.

5,000 litre heavy duty bladder tankLight duty outlet and valve

5,000 litre heavy duty bladder on PVC groundsheet
Light duty outlet and valve

Tank sizes and Capacities

Capacity
Tank Layflat Size
Groundsheet size
Tank Approx. Size Filled
* 1,000 litres
1.50 x 2.60
2.50 x 4.00
1.00 x 2.10 x 0.50
* 2,000 litres
2.30 x 2.60
3.50 x 4.00
1.70 x 2.00 x 0.60
* 3,000 litres
3.10 x 2.60
4.00 x 4.00
2.50 x 2.00 x 0.60
* 5,000 litres
4.50 x 2.60
5.50 x 4.00
3.80 x 1.90 x 0.70
10,000 litres
3.40 x 5.20
4.50 x 6.00
2.40 x 4.20 x 1.00
15,000 litres
4.50 x 5.20
5.50 x 6.00
3.40 x 4.10 x 1.10
20,000 litres
5.40 x 5.20
6.00 x 6.00
4.20 x 4.00 x 1.20
30,000 litres
7.20 x 5.20
8.50 x 6.00
5.90 x 3.90 x 1.30
50,000 litres
8.30 x 6.50
9.30 x 7.50
6.80 x 5.00 x 1.50

Special sizes and outlet configurations made to order.
* Transport sizes stay within truck body when empty.

Material Specifications

Bladder Material
Properties Specification
Base cloth PES / PES
Total weight (approx.) 1100 g/m²
Base cloth construction Panama 2/2 275 g/m²
Construction 12/13 threads/cm
Coating calender Dull
Breaking strength 4000 N / 5cm
Tear strength 60 daN
Adhesion 10 daN / 5cm
Temperature resistance -30 to +70 C
Colour Beige 46002
Special properties Special quality for contact with potable water and food

Groundsheet Material
Properties Specification
Base fabric High tenacity polyester
Coating Flexible plasticised PVC
Total weight 610g/m² +/- 25g/m²
Tensile strength 2300 N / 5cm (ave.)
Tear strength 400 N (ave.)
Coating adhesion 100 N / 5cm (ave.)

Bladder Construction Detail

All bladders are fitted with reinforced corner mouldings with integral tie down holes.

Standard corner moulding

Standard corner moulding

All bladders are fitted with automatic pressure relief valves set at 1 PSI (0.007 N m/m²) to prevent bursting through over-filling.

Lightweight outlet with integral pressure relief valve
Heavy duty 4" top outlet with integral pressure relief valve
Lightweight top outlet with integral
pressure relief valve
Heavy duty 4" top outlet with integral pressure relief valve

Static use water tank outlets:-

1 x 2" BSP(M) reinforced PP moulded outlet with screw cap installed to one side of the tank.
1 x 4" BSP(M) PP moulded outlet with PVC screwed cap and integral pressure relief valve installed at the top of the tank.

Heavy duty static and transport use water tank outlets:-

2 x 2" BSP(F) anodised aluminium screwed outlets installed to one side of the tank.
1 x 4" BSP(F) anodised aluminium screwed outlet with PP screwed plug with integral pressure relief valve installed at the top of the tank.

General
All bladders are supplied with instruction manuals and repair kits.

Groundsheets
Produced approximately 1m larger than the bladder tank dimensions when empty. All groundsheets are fitted with moulded in edge eyelets for pegging them down if required.

Accessories
Tanks can be supplied with outlet valves pipework or as kits with supply pumps and/or tapstands.

Bladder tank on groundsheet with tapstand and pipework

Bladder tank on groundsheet with tapstand and pipework

PDF Click here to download the Bladder Tank instruction and repair manual

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