The maintenance of the new regulator before operation is an advanced construction concept, the purpose of which is to protect the valve seat seal of the regulator valve to avoid damage to the valve seat during installation and commissioning. Pre-maintenance of the valve before it is put into use can better realize the functions of conduction, cut-off and diversion, which is not only conducive to early detection of problems, timely elimination of faults, elimination of hidden dangers, but also extension of pipeline operation period, which can better Provide the basis for the operation and maintenance of the valve after production.

The leakage of the valve occurs mostly in the initial stage of use. The main reason is that the sealing ring and the ball are scratched due to improper operation during pipeline construction. If these scratches are not repaired in time, the long-term leakage operation of the pipeline will have serious consequences, and the switch The leakage caused by the limit is not serious, and the damage to the seal is also very serious.

The valve seat sealing ring is an important component of the valve. It is a soft seal. The sealing material includes chemical composites such as nylon and fluororubber. The sealing form includes O-ring or embedded. Regardless of the material and installation, the seals can not avoid wear and erosion and hard object damage, resulting in leakage inside the valve. Therefore, protecting the valve seat is the top priority in valve maintenance.

If the valve cannot be opened or closed, the sealing device is damaged, serious internal leakage occurs, the grease nozzle is blocked or the external leakage occurs, it is difficult to eliminate it in time when the pipeline is under pressure. It needs to be discharged after the pressure is released, which affects the production period. It also caused waste of human and material resources and polluted the environment. Therefore, the pre-maintenance of the valve before commissioning is very important - provided by the Sanjing Valve Technology Department.

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