A torque wrench is an instrument that is utilized for application of accurately an exact torque to a fastener, for example, a bolt or a nut. It is available in the shape of a socket wrench that is provided with the special internal mechanism. In the year 1918, it was invented in New York by Conrad Bahr. It was invented to put a stop to over tightening of bolts that were found on the stream pipes and water main present underground. Over a period, there are many changes made in the basic device and added numerous features that made the device more useful and effective in the completion of the task. Today what one can see is the modern device that is not made for effective work but also quality and ease of task completion.
You can utilize torque wrench at places where tightening of bolts and screws is vital. By its use, an operator is in a position to determine the torque that is being applied to the fastener in order to coordinate with the specifications that are set for a specific application. This process allows proper tension and all parts get loaded properly. Best torque wrenches are used to gauge torque as an alternative to bolt tension. The technique is not accurate as it suffers because of incoherent or in calibrated friction that takes place between mating hole and fastener. You need to measure bolt tension what is really required; it is frequently the torque that is the practical measurement which can be considered.
Beam type torque wrench
In it, the indicator bar is found in a straight line whereas the main shaft tilts proportionally at the handle to the force that is applied.
The very fundamental type of torque wrench is made of two beams. The first one comprises lever that is utilized for the application of torque given to the fastener that is to be tightened and works as the handle of the said tool. As force is given to the handle, it will get deflected as expected and in proportion to the said force in line with Hooke’s law. While the second beam at one end is attached to the wrench head only and is free on other side, it works as the indicator beam. When the tool is not in use or is stored the two of the beams are parallel to each other, the indicator beam remains normally on top. The free end of the indicator beam is free and moves over a scale that is calibrated which is connected to the handle or the lever that is marked with the units of torque. The lever gets bend whereas the indicating beam remains straight.
It is an industrial tool that is known as flange separator or a pipe flange spreader that has been intended for assisting opening up or separating flanges. Flange separators are normally present in pipes that are utilized to connect the pipes together or acts as a cap to close or cover them up. They are found in a number of configurations and styles.