Natural gas pressure regulating lever is a device used to regulate and control the pressure in natural gas pipelines.Among them,FL type pressure regulating pry is widely used in various distribution and metering stations of natural gas companies,with advantages such as smooth operation and convenient maintenance and repair.If it fails,it may directly lead to serious consequences such as station shutdown.Therefore,it is of great significance to conduct in-depth research on its structural principles,analyze its common faults,and propose countermeasures.