Hammar hydrostatic release unit HRU H20R for Life Raft – IMPA 330119

Hammar hydrostatic release unit HRU for EPIRB – IMPA 330126

Hydrostatic release unit type THANNER DK2010 for 30 months – IMPA 330128

A Hydrostatic Release Unit or HRU is a devise which works on pressure activation use to automatically deploy a Life Saving Appliance onboard a vessel in case of emergency or evacuation. Life rafts and EPIRBs are common equipment which are fitting with HRU. In case the vessel sinks and a depth of 1.5 – 4.0 m is reached the water pressure against the HRU diaphragm causes a sharp knife encased to cut through the rope and hence releasing the life raft or EPIRB.

Two Type of Hydrostatic Release Units HRU

1. Disposable Type – To be replaced every 2 – 4 years
2. Unlimited Life Type – Annual Service and Testing sufficient.

Models of Hydrostatic Release Units HRU

1. Hammar H20R for Life rafts
2. Hammar HRU for EPIRB – H20E
3. ACR HydroFix HRU 100 for EPIRB
4. McMurdo BreaktHRU for EPIRB
5. Hydrostatic release unit type THANNER DK2010 for 30 months