How to Set Up a Hydraulic Torque Wrench?

February 7, 2022

Know What You’re Doing with Your Hydraulic Torque Wrench

A hydraulic torque wrench is a more advanced version of a handheld torque wrench.

A hydraulic torque wrench is a calibrated device that measures the torque applied to fasten and loosen a bolt to the required tightness or looseness. George A. Sturdevant created it in 1968. Since then, they’ve been employed in a variety of industries, including transportation, field construction, and oil and gas exploration. On well-lubricated bolts or fasteners, hydraulic torque wrenches are employed.

When compared to pneumatic torque wrenches, hydraulic torque wrenches are lighter and operate quietly. These wrenches are extremely precise to the tune of +3% and have a long service life. They’re suitable for industries and applications that require large bolts to be torqued precisely.

Understanding the Different Types and Mechanisms

There are two types of hydraulic torque wrenches: square drive and low profile. Each of these is tailored to the specific environment in which it will be utilized. Torque is calculated by multiplying the turning force applied to a bolt by the distance between the twisted object’s center and the tool’s center. The force-distance product is measured in pound-feet or Newton meters. Because of how they work, hydraulic wrench torques are distinct from other powered wrenches. Only hydraulic pressure is used to generate torque in these wrenches. They are equipped with a self-ratcheting mechanism. They incorporate a technology that can precisely measure the torque applied.

How to Set Up a Hydraulic Torque Wrench?

Hydraulic torque wrenches are powered by a pump that is either pneumatic or electric. They can work in tighter locations than other torque tools, making them perfect for circumstances where conventional torque tools won’t fit. They work in chemical plants and refineries, as well as on oil and gas pipelines, fastening bolts.

Following these steps will teach you how to operate a China hydraulic torque wrench

Begin by connecting the power pack to one end of the hose and the wrench to the other. Ensure that all fittings are securely fastened and that all components are connected.

Making Changes to the Settings

You can position the right torque levels for your project using the settings on your new hydro torque wrench. If the task has a predetermined torque level, stick to it. If you don’t have a torque setting, start with the lowest and gradually build up, being careful not to overtighten any fasteners.

Making Use of the Wrench

Attach this same torque wrench to a nut, trying to make sure the gasket – if one is required – is properly aligned. On one side, the wrench will feature a big hole in the configuration of a screw or hex bolt. Before using, make sure you understand the operating instructions completely.

A Hydraulic Torque Wrench in Action

It’s vital to remember that its functioning concept is founded on Newton’s Law, which states that for every applied force, there is an equal and opposite reactive force. When a wrench is rotated on a nut or bolt, tension is created in the opposite direction, acting as a clamping force, pulling the bolted components in the same direction with a specific tension or load. As the torque increases, the joint integrity weakens, allowing the bolt to loosen or tighten. The amount of torque required to tighten or loosen a joint is determined by its length, size, and type, as well as the quality of the fastener and the lubricant used. 

Hydraulic torque wrenches are made to fit various joint heights and widths, as well as their nuts. A hydraulic tensioning device or a hydraulic stud bolt tensioner is used to apply force to the bolt. The most dangerous aspect of a hydraulic torque wrench is the responsible member. It collides with the stationary object, preventing the wrench from rotating the fastener.

How to Safely Use a Hydraulic Torque Wrench?

Your hydraulic torque wrench, like every other tool in the toolbox, can only work if it is used correctly and in accordance with safety precautions:

While using a hydraulic torque wrench, be sure you’re wearing the proper safety gear. To shield your eyes from airborne particles, put on safety goggles and tuck your head and clothes away. When using a torque wrench, no jewelry should be worn.

  • Before using your wrench, be sure to test it at full scale at least twice to see if the moveable pieces are moving properly.
  • Grip the wrench by the handle rather than the pipes or other connectors. Keep your fingers away from the reaction bar or the boot.
  • When applying the final torque, use a tugging motion rather than a pushing motion.
  • Sockets that are fractured or worn should not be used.
  • When using the sockets, keep a safe distance away from them in case it bursts.
  • Calibration ranges that are exceeded can harm your tool and put you in danger.
  • Keep your wrench validated at least once a year by a competent calibration lab, and then have it re-evaluated if you or anybody else drops it.
  • To provide yourself leverage, don’t utilize a cheater bar. You run the risk of breaking the wrench and having erroneous results.

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