HAMMAR H20 HRU Standard SOLAS Model (Yellow) - USCG/UKCA/EC Approved Hydrostatic Release Unit - HR-0102
The Hammar H20 Hydrostatic Release Unit - HR-0102 is a vital component for liferaft deployment in marine emergencies. Designed for SOLAS-approved applications, it activates automatically when submerged, using water pressure to trigger a spring-loaded knife that cuts the securing rope. This action releases the liferaft as the vessel sinks, with the Red Weak Link™ breaking under tension from the painter line to allow the raft to surface and inflate. With USCG, UKCA, and EC approvals, this yellow-labelled H20 model is suitable for liferafts carrying 6 to 150 persons, providing reliable, maintenance-free safety performance at sea.
Hammar H20 Marine Hydrostatic Release Unit (Yellow Label) – SOLAS Liferaft Auto-Release System – USCG/UKCA/EC Certified for for Liferafts (6 to 150 People) – HR-0102
The Hammar H20 Hydrostatic Release Unit ensures automatic liferaft and EPIRB deployment at depths of 1.5 - 4.0 metres (SOLAS). It cuts the securing rope to release liferafts (6-150 people) in extreme conditions, operating between -30°C to +65°C. Made from corrosion-resistant materials, it requires no annual maintenance—just replace every 2 years. 97% recyclable and certified to SOLAS and IMO standards, it has a 5-year shelf life when stored properly.
Key Features & Equipment Benefits:
- Safe & Reliable in Extreme Conditions: Designed to perform reliably in harsh marine environments; activates automatically under increasing water pressure to release liferafts and EPIRBs if the vessel sinks.
- Global Best-Seller: The Hammar H20 is the world’s most widely used hydrostatic release unit, known for its safety, reliability, and simple design, with over 25 years of proven performance.
- Maintenance-Free: Constructed from glass fiber-reinforced nylon to prevent corrosion, requiring no annual service or spare parts. Replace every 2 years, and the old unit is 97% recyclable.
- User-Friendly: Easy to handle and install, reducing storage costs and minimising downtime. Can be combined with Hammar’s Remote Release Systems for enhanced safety and efficiency.
- Hydrostatic Activation Depth: Yellow Top Label: 1.5 - 4.0 metres (SOLAS); Green Top Label: approximately 4 meters; Blue Top Label: approximately 6 meters.
- Weak Link System: Breaking strength of 2.2 ± 0.4 kN
- Dual Assembly Option: Available for configurations requiring multiple H20 units, which can be combined with MRU or ERU units.
- Approvals: USCG/UKCA/EC approved
Technical Information:
- Operating Temperature: -30°C to +65°C.
- Service Life: 2 years; replace after 24 months.
- Approved Standards: SOLAS 74, IMO Res. MSC 97(73), MSC.48(66), MSC.81(70), MSC/Circ.811, EU Directive 96/98 EC.
- Label and Marking: UV-resistant, peel-proof; includes serial number, manufacturing date, and approvals.
- HS Code: 84798997
- Country of Origin: Sweden.
- Nato Stock Number (NSN): 4220226334285 or 4220640016234
SPECIFICATION
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Activation Depth: Yellow top label model activates reliably between 1.5 – 4.0 metres in line with SOLAS standards.
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Auto-Activation: Automatically deploys liferafts or connected life-saving equipment using a spring-loaded knife triggered by water pressure during vessel submersion.
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Weak Link System: Integrated weak link with a breaking strength of 2.2 ± 0.4 kN. Optional red braided polyester line (4.5mm diameter) available as an alternative.
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Operating Temperature: Operates in extreme temperatures from -30°C to +65°C.
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Service Life: 2-year operational life on board; replace after 24 months or as stated on product at installation.
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Durable Construction: Made with corrosion-resistant polyamide (PA6) housing, stainless steel knife and spring.
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Maintenance-Free: No servicing required; unit and bolt should be replaced every 2 years. Designed as a single-use, disposable unit.
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Global Approval: Compliant with SOLAS 74, IMO Res. MSC 97(73), MSC.48(66), MSC.81(70), MSC/Circ.811, and EU Directive 96/98 EC.
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Labelling: UV-resistant, peel-proof label with top label colour (Yellow = SOLAS), marcode, serial number, manufacturing date, expiry date, security number, notified body and wheel mark.
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Shelf Life: Up to 5 years when stored dry in original packaging and protected from UV exposure.
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Country of Origin: Sweden.
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