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River Barge Loading Arms
FBMA - Fully Balanced Marine Arm
Highly simplified design marine loading arm for use to offload barges or small tankers where a limited operating envelope is required.
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DCMA - Double Counterweighted Marine Arm
Two counterweight assemblies balance independently the inboard and outboard sections of the arm, requiring less space for counterweight clearance behind the arm and avoiding any interference with jetty piping/ equipment even when the arm is moved out of its normal separating range.
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Woodfield Marine Loading Arms are generally designed in accordance with the O.C.I.M.F. %u2018design and construction for marine loading arms%u2019 and offer advantages in enhanced safety and reliability in operation. Woodfield Marine Loading Arms need a minimum of service attention and only require routine maintenance.
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RCMA - Rotary Counterweighted Marine Arm
A single main counterweight assembly is used to balance the inboard and outboard sections of the arm, with an additional small countermight assembly to adjust inboard arm balancing.
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For the transfer of LNG, refrigerated, high density or high specific gravity products, these arms are also available in a different configuration - the "S" or supported version - where the fluid line is separate from the mechanical structure:
- RCMA - S
- DCMA - S
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Woodfield Systems Limited%u2019s managing director, Richard Williams, says this co-operation heralds a new era of cost effective solutions for the loading arm market place: %u201CWe are very happy with our world-wide partners and the quality of their work. We have worked very hard and invested heavily in communication and experience transfer with our nominated construction houses, and as a result our design engineers have found working with the constructors to be easy and efficient.%u201D
Temperatures from -1640C to +2000C
The Woodfield range of Marine Loading Arms extend from 4%u201D dia. up to 24%u201D dia., for handling crude oil, refined products, slurries, chemicals, LPG, LNG and other cryogenic products. The equipment can cover operating temperatures from -1640C to 2000C.
Arms can be supplied as manual, hydraulic, electro-hydraulic with either hardwired or wireless remote control. Manually operated arms can be supplied with attachment brackets for the later addition of hydraulic operations. Operational limiting controls and other warning devices are available as optional extras. Woodfield Arms, although normally fixed in one jetty position, can be mounted on movable trailers or rail tracks to provide dockside flexibility.
Several types of quick connect/disconnect couplings are available for the full range of Loading Arms. An emergency disconnect coupling is also available as an operator initiated device or as part of a sequence controlled %u201Cshut down%u201D disconnect-system.
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With the latest successful installation and commissioning of our LNG loading arms, we are pleased to add this new technology to our extensive portfolio.
Standard Design Features
Designed for minimum maintenance
Structurally supported product pipe
Stainless Steel product pipe
Rigid pantograph link (no wire ropes - low maintenance)
All bushes self lubricating
Hydraulic lines and fittings in stainless steel
All product swivels seals fully serviceable in situ
Loading arm fully balanced in all positions whilst empty
Optional Design Features
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DCMA-S - Double Counterweighted Marine Arm "S"
This arm is fully balanced in all positions. Two independent counterweight systems are used to balance the inboard and outboard sections of the arm. The "S" or supported version is designed to separate the product carrying line from the mechanical structure.The DCMA design requires less space for counterweight clearance behind the arm.
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Marine Loading Arms
Woodfield Systems can offer the full range of both ambient and cryogenic marine loading arms.
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RCMA-S - Rotary Counterweighted Marine Arm "S"
This arm maintains the product carrying line separate from the mechanical structure with only a single counterweight system used to balance the inboard and outboard sections of the arm.
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Standard systems and jumper assemblies can also be supplied mounted on road or rail trailers to accelerate loading and efficiency at terminals with limited dock space or where dock space is more frequently used for non liquid cargo.
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The QC/DC could cancel the converging tube between loading arm and vessel. It can also cover three nominal dimension flanges to make the connecting operation easily. It makes the connect and disconnect automatically with hydraulic control system instead of manual operating.
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The loading arm is fully balanced in all positions with two independent counterweight systems. It is a self-support structure%uFF0Cthe pipeline and the swivel joint endure not only the pressure from the media but also the gravity and the overturn moment of all load.
It is usually used on the river wharf and the small tanker.
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RC%uFF08Rotation Counterweight%uFF09manual marine loading arm
this is a typical rotary counterweight marine loading arm, all the vertical load and overturn moment should be supported by the base riser and supporting device, to make the pipeline and the swivel joints be free in theory, the balance system consists of a pantograph for transmitting balancing loads from the outboard arm to the secondary counterweight. It is manoeuvred only by one operator .It is easy operating and lower cost for various liquid loading/unloading
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Cryogenic loading arm is a new kind of marine loading arm which is used for conveying some cryogenic media such as LNG, ethylene. To select different materials for the main pipeline according to different temperature of products. The supporting structure of the arm is designed specially to prevent it from contacting the cryogenic pipeline, and to avoid the material performance changing in the condition of cryogenic temperature, such as cold shortness. the swivel joint-the key part of the loading arm is also designed specially to make the whole six pieces of swivel joint can be cycled by Nitrogen gas, in this case, it can put the vapor out of the swivel joint to avoid icing in the race way of swivel joint and protect the race way from being broken.
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This type loading arm consists of two parts: the marine loading arm connected with vessel and the land loading arm connected with the local pipeline. It can make the loading arm work movably, to ensure all loading facilities can leave the site timely after loading or unloading, and hence to save enough space to do other work; all the power to operate the loading arm is supplied by the veghicle motot, the operaor only need to start-up the motor of the vehicle, then the loading arm can be operated with a remote controller, so it can be connected or disconnected with vessel or site pipeline easily.
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The HLK-43000 5 Function Mini Manipulator is unique in that it has no aluminium parts. The
construction of plastic and stainless steel has kept the arm rugged and tough with the capability
of lifting 10Kg at full reach, yet retaining a very light weight in water. The unique 5 function
arrangement gives excellent dexterity for a small arm and enhances the operational capability of
the new range of smaller ROV's
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Allows the survey of pipelines using small electric ROVs. Incorporates adjustable, sprung undercarrige, boom cameras, lights and CP probe. Fully electric to suit inspection / light work ROVs.
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These can be supplied for our professional ROV systems in different formats and can include high and low pressure cleaning pumps and manipulators.
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Our electric ac and dc thusters can be fitted with cup type brushes for cleaning of structures prior to inspection.
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These can be supplied for our professional ROV systems in different formats.
Contact Sub-Atlantic for more information
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Both L.D. pendulum and pantograph arms are made of stainless steel with a brushed finish and are adjustable in length. The pendulum arms have a maximum length of 650 mm and the pantopgraph arms maximum 550 mm. On these arms and blades a black coating is applied as a standard. Arms however can also be supplied with a polished finish. Both arms can take standard as well as heavy duty Exalto wiper blades.
For wipers type 009 and 0095, stronger arms are available, completely manufactured from stainless steel 316 and also adjustable in length. L.D. blades are available in three fixed lengths.
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BS3A provide a simple seating/ storage solution with lift up arm rests combining a marine quality G.R.P. base storage unit with comfortable vinyl upholstered seating.
BS21 Offers style and comfort combined with practicality. The seat incorporates lift up arm rests for ease of access.
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BS20 combines padded luxurious upholstery with a reversible backrest for maximum versatility. The backrest mechanism and other fittings are manufactured from polished stainless steel.
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Arm complete carbon
length: 300 or 1500mm
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