Description
H20R Hydrostatic Release Unit for liferafts
What does an HRU do ?
If the vessel sinks, the increasing water pressure activates the Hammar H20. It automatically releases the liferafts, EPIRBs (Emergency Position Indicating Radio Beacons), or other life-saving appliances it is connected to.
The Hammar H20 is designed to be safe and reliable in all extreme conditions that you and your ship might meet on the oceans. The Manual Release Units (MRU) and Electronic Release Units (ERU) allow for a smooth, controlled release in an early stage of abandoning the ship without compromising the hydrostatic function.
Inside the Hammar H20, a pin under tension sits in a notch of a spring-loaded knife. The pin is attached to the center of a flexible membrane. At the intended depth, water acts on the membrane pushing it inwards and out of the notch. When the pin is fully out of the notch, the blade can instantly spring forward, cutting through the strong rope and releasing the lashing.
Mounting instructions included.