Similar Terms: PFD, life jacket, automatic inflator
The Hammar life Jacket inflater works by the hydrostatic opening and letting the water meet the sensitive element. This releases the Stainless Steel coil spring, which drives a needle into the end of the gas cylinder. So once you have been submerged 10cm in water, within 3-5 seconds, your life Jacket should automatically inflate.The life Jacket can still be manually inflated like all others, by pulling the handle.
Due to it's ability to recognise pressure, the Jacket won't inflate in high humidity, or when subjected to spray and wave splash. The gas cylinder is also located inside the life Jacket to protect it from corrosion, whilst the Jacket also sports a seal indicator, so that you can easily tell whether it has been used or not.
The only down side to these new state of the art automatic inflating device, is that it must be kept up to date with servicing, to ensure that the device is always in full working order. As the device does not contain floatation properties until the inflater mechanism is activated, it is crucial to know that it is fully functioning so that it will activate when needed.
Some manufacturers, including Axis, offer self servicing guides, to ensure this process is quick, easy and completed on a regular basis.
Axis Hammar Hi Viz Flame Resistant PFD
Hammar Hydrostatic sensor