Engineering

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59° NORD thanks to our knowledge accumulated in the offshore deep sea diving industry since 1970 in the North Sea we can also write your procedures of installation of your equipment (in collaboration with your engineers) and procedures for your underwater works.

With the 59° NORD Airlift or the water-jet dredging system, you are in business. And since it is constructed of 100% stainless steel with no moving parts, it is practically indestructible and rust-proof, unlike other dredges constructed from lesser materials.

The Airlift is a simple yet effective device, it works by injecting compress air from a construction BP compressor in the suction head via a special device engineered by 59° NORD. to guarantee an easy start of the suction. A grate on the intake head prevents larger objects that could jam the tube.

The head is connected to a heavy duty hose to transport the sediment to a floating sieve. (this can be also adapted for the water-jet dredge).

The water-jet dredge is a simple yet highly effective device, it works by injecting a high-speed jet of water into the 150mm tube via a venturi system, entraining a much greater stream of water inside the tube. The strong suction created at the intake end draws up bottom sediments, which are ejected 10 or 15m. away from the work site, far enough to avoid fall-back into the working hole and reduce clouding. A grate on the water intake prevents larger objects that could jam inside the tube from being drawn into the dredge.

59° NORD thanks to our knowledge accumulated in the offshore industry since 1970 in the North Sea we can also write your procedures of installation of your equipment (in collaboration with your engineers) and/or the realization of underwater works. 

59° NORD designs and builds custom aluminum diver lift.

The diver lift is extremely heavy-duty - more than strong enough to support a 400 lb fully-geared North Atlantic professional diver in even the roughest seas.

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© Valerie Fassotte 2014