The pneumatic joint belongs to one of the joints The structure is very simple and has many advantages, so it is popular in various industries. It is a pneumatic component connected by pumps, valves, pipes and other equipment and pipes. It can be connected by bolts to make it a whole, and has a certain displacement. In this way, it can be adjusted according to the field installation size during installation and maintenance, and the shaft can be adjusted during work The thrust is transmitted to the whole pipeline system. This not only improves the working efficiency, but also plays a certain role in protecting the pipeline equipment such as pumps and valves.
Introduction of the application scope of pneumatic joint
The pneumatic joint can be expanded axially within a certain range, and it can also overcome the offset caused by the different axes of the pipeline butt joint within a certain angle, which can greatly facilitate the installation and disassembly of the valve pipeline. It can be expanded freely in the allowable expansion amount of the pipeline. Once the maximum expansion amount is exceeded, it will play a limit to ensure the safe operation of the pipeline. The joint is mainly used to ensure the safe operation of the pipeline, which has the following functions: to compensate the axial, horizontal and angular thermal deformation of the absorption pipeline; to absorb the vibration of the equipment and reduce the impact of the vibration of the equipment on the pipeline; to absorb the deformation of the pipeline caused by the earthquake and subsidence.
When installing the pneumatic joint, the screw of the bolt shall extend to the outside of the joint, and the bolt of each flange end face shall be tightened repeatedly and evenly according to the method of diagonal pressure to prevent the pressure deviation. Screw joint shall be tightened evenly with standard spanner. Do not use force bar to add force to make sliding wire, sliding edge and fracture of movable joint. Besides, regular inspection shall be carried out to avoid disc breaking or water seepage caused by loosening. After the pneumatic joint bears the pressure for the first time (such as installation and pressure test, etc.) or before it is stopped for a long time and used again, the bolt shall be re pressurized and tightened before it is put into operation.