Hydrostatic Release Unit

Home / Supplies

Hydrostatic Release Unit (HRU)

At Marinetech Safety and Shipping Corporation, we provide high-quality Hydrostatic Release Units (HRUs) to ensure your life-saving equipment operates effectively in emergencies. Our HRUs are designed to automatically release lifeboats, life rafts, and EPIRBs in case of sinking, enhancing the safety of your crew.

LALIZAS Hydrostatic Release Unit for Life Rafts

LALIZAS Hydrostatic Release Unit for Life Rafts


LALIZAS HRU mechanism is the outcome of a long-term experience in liferafts’ manufacturing, designed and produced in the EU (in Greece), in accordance with SOLAS/MED/USCG regulations.

  • No maintenance required.
  • Requires replacement 2 years after installation on board or 4 years after manufacture, whichever occurs first.
  • Tested & approved by Force Certification A/S.
  • SOLAS/MED/USCG approved.

LALIZAS Hydrostatic Release Unit for EPIRB

LALIZAS Hydrostatic Release Unit for EPIRB


LALIZAS HRU mechanism is the outcome of a long-term experience in liferafts’ manufacturing, designed and produced in the EU (in Greece), in accordance with SOLAS/MED/USCG regulations.

  • LALIZAS Hydrostatic Release Unit (HRU) for EPIRB is activated in a depth of between 1.5 and 4m deep by hydrostatic pressure, releasing the EPIRB from the sinking vessel. It is made of glass reinforced nylon for extra protection against corrosion, designed & tested according to LSA requirements / MSC 81(70), as amended.
  • Having easy & simple installation, LALIZAS HRU for EPIRB requires no maintenance, while it needs replacement after 2 years from installation, or 4 years after manufacture, whichever occurs first. The bolt (rod) must be replaced together with the HRU. LALIZAS HRU for EPIRB complies with most EPIRBs & is installed according to the EPIRB Manufacturer’s instructions.