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The importance of the synchronization system of hydraulic wrenches
source:Industry News release time:2022-03-28 Article author:Rosit Popular:Air band saw
The main purpose of the hydraulic wrench synchronization system is to avoid the unilateral compression mode on the flange surface, which will cause the gasket on the flange surface to fail due to excessive extrusion, resulting in leakage. Synchronous system is used when two or four hydraulic wrenches are connected to one pump at the same time.
According to the hydraulic principle, multiple hydraulic wrenches work at the same time and output the set torque at the same time, the flange can be closed in parallel, and the torque accuracy can reach 3%. The synchronous system can lock the bolts at one time, while the single system needs to be loaded multiple times and locked in steps. It can be seen that the efficiency of the synchronous system is much greater than that of the single system.
For larger wrenches, it is recommended to use a hydraulic wrench pump control volume synchronization system, or a system where two pumps and two wrenches are locked on the opposite side at the same time.
Generally, the reasons for the leakage of the safety valve of the professional pump of the hydraulic wrench may be caused by damage to the sealing surface, improper installation, high temperature, the opening pressure is too close to the working pressure of the equipment, or the sealing surface is entrained with dirt and other reasons.
When the hydraulic wrench has a safety valve leakage, you can refer to the following methods to solve it:
1. According to the degree of damage, it should be repaired by grinding or grinding after turning. After repairing, the flatness of the sealing surface should be ensured, and its smoothness should not be less than 10.
2. Reassemble and remove additional piping loads.
3. When it is improperly selected, the safety valve suitable for high temperature medium should be re-selected according to the operating temperature, such as a safety valve with a radiator or other special structure safety valve. Appropriate thermal insulation measures should be taken for leaks caused by high temperature environments.
4. Re-set the pressure according to the permissible range of the working pressure of the spring. If it exceeds the working pressure range, the spring with the working pressure level corresponding to it should be replaced.
5. You can use a lifting wrench or other methods to open the valve several times to blow off the dirt. If it cannot be blown off, disassemble the valve to remove it.
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