Checkstow follows the well established engineering principle which says “the simpler the better”. The outer re-enforcement layer of 1600 denier slit polypropylene is tubular woven and folded and sewn at the ends with polyester cloth re-enforcement. This results in an outer layer of high strength with excellent puncture resistance. Air is retained by the high density 125 micron polythene inner which is co extruded and blow moulded with welded ends. The simple valve assembly is welded in place and accepts standard air guns. Deflation is rapid – simply unscrew the valve. Optimised materials make a highly cost effective, re-usable bag.

Working Pressure
Strong materials allow a safe working pressure of 0.3 bar (3 psi). This ensures there is enough safety margin to allow for changes in ambient temperature. Increases will make the airbag pressure go up and decreases will make it go down. Checkstow’s heavy duty construction allows a margin of safety not possible with other bags which risk bursting as temperatures increase or getting too soft as they decrease.

The forces available can be very high. Consideration must be given to whether the cargo and packaging can withstand the inflation pressure chosen.

Valves
Checkstow’s re-usable valve is designed to be simple and effective. It can be used with a variety of filling guns. Our own gun is available if required. Letting air out could not be easier, just unscrew the valve core. This encourages re-use.

Airbag Size and Weights
Standard sizes are 90 cm x 180 cm, weighing 1.04 kg and 90 cm x 120 cm weighing 0.69 kg. Special sizes are available for large orders.

Principle Features

• Neoprene rubber coated fabric for durability and strength.
• High Strength Brass Valve with standard connector can be easily changed.
• Dimensions and Weight: 2.44m x 1.22m x Flat (deflated)
• Custom sizes available to order
• Weight Approx. 14kg
• Inflation Pressure:
  Maximum = 10 psig / 0.69 bar
  Working = 5 psig / 0.34 bar
• Every batch of bags made is proof tested.
• ABS certified and witnessed tests.