Generally speaking, whether it is a hydraulic wrench or a hydraulic bolt tensioner, what we know and use more is suitable for ordinary working environments without special requirements. However, some special environments may have special requirements for the material and functional design of the tool, such as flammable and explosive environments. How to choose a hydraulic bolt tensioner for flammable and explosive working conditions like this?
If we want to use a hydraulic bolt tensioner to pre tighten and disassemble bolts in an environment that contains flammable and explosive substances, we must use an explosion-proof hydraulic bolt tensioner. The biggest difference between explosion-proof hydraulic bolt tensioner and ordinary hydraulic bolt tensioner is that the configuration of the ultra-high pressure pump station has explosion-proof performance. For example, ultra-high pressure electric explosion-proof pumps and ultra-high pressure pneumatic pumps. Choose whether to equip an electric explosion-proof pump or a pneumatic explosion-proof pump based on whether stable air pressure is suitable for the working conditions.
The selection of hydraulic bolt stretcher is consistent with the selection of normal working conditions, which is to choose the appropriate hydraulic bolt stretcher model based on the specifications of the nut and the magnitude of the tensile force. This requires reference to the bolt working condition survey form to obtain relevant data before determining the plan.
Hydraulic bolt stretchers are also divided into several types, and explosion-proof hydraulic bolt stretchers with corresponding functions need to be selected according to different industries and bolt characteristics. For example, a standard bolt can use a regular hydraulic tensioner, a single-stage automatic reset bolt tensioner can be selected for frequent use, a two-stage bolt tensioner can be selected for narrow spaces, and an interchangeable stretching head can be selected for multiple bolt specifications.
Finally, it is important to choose a brand of hydraulic bolt stretcher with good reputation and quality assurance to ensure the performance and service life of explosion-proof hydraulic bolt stretchers.