Hammar H20 HR-0100 Hydrostatic Release Unit SOLAS Yellow



Hammar H20 HR-0100 Hydrostatic Release Unit

SOLAS Yellow

 Due to MCA regulations, all HRUs are now date marked and therefore, cannot be refunded after purchase


The Hammar HR-0100 Hydrostatic release unit is designed for liferafts from 6 up to 150 persons.

The release unit consists of a double looped white rope line, a release mechanism and a Red Weak Link™ (breaking strength 2,2 ± 0,4kN).

The white strong rope of Hammar HR-0100  is secured to the deck or liferaft cradle and attached to the liferaft lashing with a slip hook. If the ship sinks, the water pressure will, within 4 metres, activate the sharp knife which cuts the white strong rope and the liferaft will float free. As the ship sinks, the liferaft painter line will be stretched and the liferaft starts to inflate.

The Red Weak Link™ breaks and survivors can board the floating liferaft.


The Hammar H20 hydrostatic release units are approved all over the world, fulfill the requirements of the SOLAS 74/96 Convention, Reg. III/4 LSA Code, MO Res. MSC. 48/(66), IMO Res. MSC. 81(70), approved to EU Directive 96/98 EC on Marine Equipment and has a NATO stock number.

Release depth 1,5 – 4,0 metres according to IMO/SOLAS regulations. The required certificates can be downloaded under Approvals.


Our Advice 
For smaller liferafts (from 4 persons and outside SOLAS regulation) we recommend Hammar HR-0105 Small Rafts model, Green Label, with a special weak link, identified by the green lower thimble (breaking strength 1,2 ± 0,4 kN).


SOLAS Approved

The HR-0100 Yellow Label needs to be replacing every 2 years


watch the HAMMAR HRU in action



Delivery Information

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