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Thanner's DK84.1M Hydrostatic Release Units (HRU)
(NSN: 4220-01-493-9233) are designed for heavy duty
installations, reliable function and no limited lifetime if serviced regularly.
Service intervals follow the raft servicing. The units can be manual released
and reset for continued service.
The units are all approved to the new MED and SOLAS regulations together with
ships wheel approval, USCG, TC and many others. ADIT is the sole source for
DK84.1M Hydrostatic Release units in the United States.
The DK84.1M HRU is made of stainless steel and composite polyamid plastic to meet
the tough requirements of the marine environment and operate independently of the life raft buoyancy.
Each HRU is approved for
any life raft up to a load of 1850 kgs.
All parts can be recycled and are made from non-toxic materials.
Special versions/release depths are available on request.
Thanner Disposable Hydrostatic Release Units for Remote Activation are based on
the standard disposable HRU range. The standard units are fitted with adaptors
enabling remote activation by means of mechanical, electric and pressure means.
One unit alone can act as hydrostatic release and remote release unit, which
simplifies the installation and increase safe operation.
The units have the same approvals as the standard units.
Electric Activation:
The HRU has a pyrotechnic activator, which by limited electric power activates
the HRU for release. The power can be supplied either by batteries or the ships
emergency supply system, or both as safety back up.
The electric installation is a standard ships installation like a fire alarm
system. The activation can be done by means of a control box situated in the
wheel house. Two wires are necessary for each HRU. No limits of distance from
the control box to HRU's.
Programmed priority of release sequence. Close proximity activation at life raft
cradle.
Mechanical Activation:
The HRU has an adapter to which a mechanical connection can be fitted. The
mechanical activation could be by means of a TELEFLEX or MORSE cable or by means
of any kind of mechanical connections. This method can be used for limited
distances only.
Pressure Activation:
The HRU has an adapter to which a pressure line can be connected. The pressure
can be supplied from a gas cylinder or a pressure tank. More units can be
activated simultaneously or one unit at a time if fed by individual pressure
lines. No limit in distance from control panel to HRU.
For more information, please contact
Chuck Cepak
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