Emergency Device Allows Safe Load Handling

press release
Tuesday, November 08, 2011

As part of an ongoing safety evaluation for all their products, J D Neuhaus have introduced an emergency lowering device for their EH range of air operated monorail hoists.
 

With this feature JDN complies with the leading standards like NORSOK, specifying an emergency device for the safe lowering of loads in the event of a cut in the main power supply. This new device supplements an existing fail-safe disc brake, which is activated in the immediate event of a mains power failure, ensuring that suspended loads are held safely and securely at their above-floor level until mains power is again made available.


JDN monorail hoists with lift capacities from 25 to 60 tons can now be equipped with the latest safety development. This comprises an additional separate pressurized air reservoir tank (maintained at a mains air pressure of normally 6 bar), with a purpose built hand controller incorporating two additional pushbuttons. The controller provides positive two-handed lowering control, while eliminating the potential for unintended load movement. One button switches between normal and emergency lowering operations. The second button activates the integrated safety brake enabling the safe controlled lowering of a deadweight load. The air reservoir, which is protected by a check valve, is topped-up during normal hoist operations, and contains a sufficient air supply to complete a controlled lowering of a suspended load in the event of a loss of mains air pressure. Det Norske Veriras certification of the emergency device can be supplied where required.

 

The NORSOK standard covers offshore cranes as well as power driven winches and hoists. JDN can supply handling equipment that has been purposed designed for BOP handling. Other essential machinery and even emergency escape products can also be safely and effectively handled, with the additional features of controlled load lowering even in the event of a total power failure.

 

These JDN products are designed for working in hazardous areas and are supplied with Ex ratings for explosion risks. They are insensitive to humidity and dust while operating at temperatures from -20°C to +70°C. Instant starting, minimum maintenance and low air consumption are their positive features, coupled with compact low-headroom design. Standard features include lateral guide plates, emergency shut-off valve together with both anti-climb and anti-drop devices. Optional accessories include increased spark protection (and higher Ex rating), rack and pinion drive, overload protection, two speed trolley travel control and filter silencers.
 

Maritime Reporter June 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Equipment

Monopiles Terminal to Be Built in Rotterdam

Sif and Verbrugge to build terminal for offshore wind energy on Maasvlakte 2   Sif Group, Verbrugge International and the Port of Rotterdam Authority have signed

Motion Compensation Solution for Solan Field

Ampelmann provides access solution for commissioning of the Solan project in West of Shetland   Motion compensated access solutions developer Ampelmann informs

Dittmann Named Chairman of SEA Europe

Kjeld Dittmann, the Managing Director of Lyngsø Marine A/S, is the new Chairman of the European Ships and Maritime Equipment Association (SEA Europe).    He succeeds Govert Hamers,

Maritime Safety

Motion Compensation Solution for Solan Field

Ampelmann provides access solution for commissioning of the Solan project in West of Shetland   Motion compensated access solutions developer Ampelmann informs

Pirates and Hold-ups: Crime Strikes Venezuela's Oil Industry

When night falls over western Venezuela, armed gangs known as "pirates" sometimes ride boats into muggy Lake Maracaibo to steal equipment from oil wells.   In the country's Paraguana peninsula,

Coast Guard Monitoring Rocket Debris off US

The U.S. Coast Guard informs it is working with SpaceX and partner agencies to monitor the debris field of the exploded Falcon 9 rocket in the Atlantic Ocean more

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Navigation Offshore Oil Port Authority Salvage Ship Electronics Ship Simulators Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1522 sec (7 req/sec)