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Conversion for subsea ROV operation (Work class Remote operated vehicle also referred to as WROV usually by manipulator arm though also can be converted to hotstab.
While in its loaded position, do not obstruct the Remote load release device so as to prevent its body being aligned straight with the line of load. Misalignment may prevent the movable jaw from releasing the connected member even with the device in the released position. Do not side load the Remote load release device as it may cause loss of retainer rings and other parts or permanently damage the device. The Hook-Clamp can release the load with or without load on the unit. (providing the safety hitch pin is removed). A multitude of general Industrial applications; indeed for any application where the rigging gear needs to be disconnected though is is an awkward, difficult to get to position. Automatic remote release of the rigging gear prevents unavoidable accidents. Choose the proper size Remote load release device so that it is not loaded with or releasing more than its rated load.
Third part whiteness test and certification available at extra cost (3rd party approval DNV, BV, Lloyds etc...) Manually, pulling a long release line. No modification of the device is required. This method is used with lower capacity models, offers the lowest cost, and has many satisfied users.
Quality Control - The manufacturer assumes the responsibility of inspecting each production unit for function, specifications, and appearance. Units not meeting the above rigid requirements are rejected. Inertial Load: A load resulting from accelerated releasing caused by tension on the object that is greater than gravity. Welding, Heat Treatment, and Lubrication - All welding is with 17-4 SS wire only. All welded parts and pins are thoroughly cleaned and heat treated to H-1025 which increases the rating of the welding by 20-30% and the parts by 15%. Heat treating also results in improved mechanical, fatigue and corrosion properties across the board. Final assembly of the product includes the light application of a lubricant to each pin such as AQUA Lube, to protect the pin surfaces from pitting during extended marine use and aid in smooth mechanical function of the device. For higher capacity units, an NLGI #2.5 grease with moly added and a temperature range from 0 to 425F is applied. The manual release lever can be supplied pointing down (towards the opening jaw) for automatic release applications below ground; pulling up releases the load (known as a reverse lever). Alternatively the release lever / arm can be supplied pointing up (towards the rigging gear / anchorage eye) and this is used for automatic release applications where the operator is below the load. Both lever types can release the load when the operator is adjacent to the HookClamp.Used to precisely place a load in position then remotely (and therefore safely) release the load from the crane hook (rigging gear). Using this method the clamp releases the load when the weight has been transferred to the floor, (other surface for example lorry trailer building, ground etc....) The Auto HookClamp can also used as a drop test clamp or load dropping clamp. This is where the clamp is used to release the load "under load", for example when dropping sea defences into the sea from a boat.
It is important to test the effort frequently after some material has been removed so as to prevent the removal of too much material.
Swell Action Latches
The "S-Series" Hook-Clamp is affixed to a steel plate to allow more accuracy when attempting to release a load, applications such as towing and off-loading in the ocean are perfect for this Hook-Clamp The Hook-Clamp consists of several moving parts that allow the 'jaw' to open and release a load, generally you would use a release line to attach to the lever, pull this line and the load will release. Alternative Methods of Release Once the safety hitch pin has been removed the clamp is“loaded” or “Live” and pulling the cord attached to the release lever WILL DROP / RELEASE the load. Pulling firmly on a release line connected to the end of the release lever also means that the operator can safety release the load away from the “danger area”. The release line can be activated “Directly” in any direction within the 90 degrees perpendicular and parallel to the line of load. The “Standard” release lever can also be operated from above the load as shown in the diagram below with the use of a suitable pulley; effectively giving 180 degree operation. Ideal for use in the water utilities industry to automatically place pumps into sumps or wet wells. Hydraulic pressure to drive a hydraulic cylinder to actuate the release lever of the Remote load release device is being used with the device ram models. These units can be activated by hydraulic hand pump, air-hydraulic foot pump, or electric pump.
Explosive electric squib thrusters inserted into a special chamber below the toggle pin are used successfully to activate the device. Multi-Directional operation, can be used in the horizontal or vertical plain. To place a load safely and precisely or as a dropping clamp. After use in or near sea water, a fresh water rinse of the Remote load release device is advised before it is stored. Sub-Sea use, made completely from aerospace-gradestainless steel the HookClamp has the ultimate in corrosion resistance.Air Cylinders provide another method of release and are fitted for activation using shop air at 60 to 100 PSI. To prevent the need to work at height, enabling the load to be disconnected from distance with-out the need to climb onto the load. LiftingSafety's Automatic release Hook-Clamps provide a unique method to Automatically release a load from the rigging and can easily be adapted to suit customers requirements. Fully corrosion resistant designed specifically for subsea and offshore use with a proven pedigree and reliability. The "PNU-Series" Hook-Clamp is fitted with a compressed air cylinder (Pneumatic ram) and allows for air pressure to release the load. The Air Cylinders operate at 60 to 100 PSI. Fully certified for use in the UK, Europe and the United states of America (USA), CE Marked and supplied with an EC Declaration of conformity / Operation and user manual.
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