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Hammar H20 6 Man+

Hammar H20 Hydrostatic Release Unit


Availability: In stock

Delivery for this item: £6
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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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Customer Reviews (19)

Thanks LukeReview by Nicole Mawrey
Received within 24 hours. Great responses from Luke on the Live Chat facility. Impressive service thank you. (Posted on 08/11/2018)
Brilliant serviceReview by Stephen Harper
Next day delivery and undated unit too many thanks! (Posted on 06/08/2018)
Thumbs up!Review by Ray Jordan
Nice and easy. Arrived the next day via RM. (Posted on 05/03/2018)
nice and easyReview by Carl French
Ordered one day arrived the next. Undated too which is always a bonus. Many thanks. (Posted on 08/02/2018)
promptReview by Carl
very efficient (Posted on 22/01/2018)
GoodReview by Howard
Good service and very quick delivery. Thanks. (Posted on 17/01/2018)
Great ServiceReview by Heidi Smyth
Really quick delivery. Great service. (Posted on 13/12/2017)
great serviceReview by Virginia Williams
great service, arrived promptly. undated too which is great. (Posted on 03/12/2017)
Another great transactionReview by Sally Davies
Thanks Norwest, arrived promptly as always! xx (Posted on 28/10/2017)
WonderfulReview by Sandra
Cheapest on the internet.
Very quick delivery too. (Posted on 26/10/2017)
Perfect!!Review by Sarah Carlson
Arrived undated which was perfect as we did not need to install the hru until the next month. Thanks for the fast service. (Posted on 25/08/2017)
As described :)Review by Ann Weaver
Always use the Hammar HRU, great product. Will order again in another 2 years thanks Norwest! (Posted on 10/08/2017)
cheapest on the netReview by Anthony Warner
Cheapest Hammar I could find from a legitimate source. Great postal service arrived in 48 hours. (Posted on 14/07/2017)
Brilliant!!Review by Andy
Ordered Monday dinner arrived Tuesday morning absolutely fantastic service!
Undated too which always helps :) (Posted on 20/06/2017)
Thanks Kay :)Review by Chelsea Wallace
Needed this item in a hurry and Kay got this out to me on a next day delivery. Thanks Kay you saved our bacon and kept the surveyor happy :) (Posted on 31/05/2017)
Amazing service and responseReview by M Brown
needed this in a hurry and it arrived quicker than expected. Thanks guys!! (Posted on 06/05/2017)
Another smooth purchaseReview by Les Croft
Thanks guys arrived quickly and just in time (Posted on 11/04/2017)
ThanksReview by Dean Brady
Arrived and the box was slightly damaged in the post. Phoned to check with Kay who offered to replace the item straight away but after checking the product there was no damage to the hru so kept hold of it. Thanks for the prompt service as always (Posted on 05/03/2017)
great serviceReview by Pat Simon
needed in a hurry and arrived just in the nick of time. brilliant!!!! (Posted on 06/10/2016)

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