The Hammar H20 hydrostatic release unit is designed for liferafts from 6 up to 150 persons.
The Hammar H20 release unit consists of a double looped white rope line, a release mechanism and a Red Weak Link™ (breaking strength 2,2 ± 0,4kN). For smaller liferafts (from 4 persons and outside SOLAS regulation) we recommend Hammar H20 Small Rafts model with a special weak link, identified by the green lower thimble (breaking strength 1,2 ± 0,4 kN). For liferafts smaller than 4 persons, please contact the liferaft manufacturer.
The white strong rope of Hammar H20 is secured to the deck or liferaft cradle and attached to the liferaft lashing with a sliphook. 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 needs no annual service, maintenance or spare parts, but MUST BE REPLACED AFTER TWO YEARS.
The Hammar H20 hydrostatic release units are approved all over the world, fulfil 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.
The new generation H20 model has a Red Weak Link connector with a 3-step coupling device. By eliminating the risk of incorrect installation, we have now made it even safer. The Hammar H20 is a hydrostatic release unit designed to fit liferafts of all shapes and sizes. It is made of glass fibre reinforced nylon, which prevents it from corroding. The Hammar H20 needs no annual service, maintenance or spare parts. You simply install a new one every two years and dispose of the old one. With the environment in mind, the old unit is 97% recyclable.
Thanks to simple handling procedures, storage costs are also kept to a minimum. The H20 enables easier, quicker, trouble-free installation, thereby considerably reducing your customers’ downtime ashore.
Compared with conventional release units, the Hammar H20 offers savings of up to 50% over a 10-year period. The Hammar H20 is the best-selling hydrostatic release unit in the world. Its safe, reliable and simple design has earned it more worldwide approvals than any other unit. In fact, it’s a small wonder!
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