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In this case, of remotely operated vehicle (ROV) operation, great importance is paid to the selection of appropriate underwater torque wrench to promote or to maintain the success of the task and safety. The following are some of the main points you should keep in mind.
Determine the Torque Requirements
The first and foremost thing is to exactly determine the torque range you need on the particular ROV operation. Various subsea uses require various levels of torque; i.e., bolting and unbolting subsea structures, or valve operation within an underwater production system, etc. When dealing with components, refer to the specifications with which you will be working with. An example is that in subsea pipelines where the flange connection and disconnection values of the torque may differ with the size and pressure rating of the pipes. Ensure that the torque wrench you choose is able to easily withstand minimum and maximum torque requirements of your operations.
Consider the Precision and Accuracy
When using sensitive subsea equipment, precision plays a crucial role in the operation of ROVs. An X - precision torque wrench provides accuracy to apply a precise amount of torque to avoid over -tightening a component to the component breakage and also under tightening which may result to leakage and weak structure. Find torque wrenches with as high accuracy as possible (usually stated as a percentage of the full - scale reading). The more complex models are able to achieve within ±1 percent or even smaller accuracy and this is apt in critical subsea work.
Evaluate Durability and Reliability
The environment underwater is hostile and has very high pressure, corrosive salt water and the mechanical stress as well. These conditions have to be withstood by the torque wrench, which must be constructed accordingly. Choose models made of corrosion -resistant Stainless steel or special alloys of high-quality. Also, look at a wrench design. It must possess a durable construction to withstand the physical work conditions of the ROV - based operations, i.e. dropped or bumped during deployment. Look out for aspects such as sealed housings, to ensure that internal parts are not exposed to water which can have a considerable impact later on in the tool life.
Compatibility with ROV Systems
The torque wrench must also be completely compatible with your ROV. This is in form of physical compatibility between its size, weight, and the mode of attachment with the manipulator or tool - carrying mechanism on the ROV. It must also be compatible as far as control systems are concerned. Make sure that the wrench can conveniently be found within the control interface of the ROV, such that the operators can precisely control how the torque is applied on the surface. Other torque wrenches have wireless or tethered control that may be easily integrated into the ROV communications and control system.
Additional Features
The sophisticated torque wrenches can even have additional functions that can increase the operations of the ROV. As an example, owing to datalogging capabilities, that can supply torque values, number of turns, and the operational time. This information can prove priceless to post - operation analysis, quality control and maintenance planning. Others could come with the adjustable speed, and this would be more accurate during the process of applying the torque on the fasteners, particularly when using the fasteners of varied types or with environments that are quite sensitive.