The working principle of the ferrule type straight-through terminal joint is to insert the steel pipe into the ferrule, lock it with the ferrule nut, interfere with the ferrule, cut into the pipe and seal. It does not need welding when it is connected with the steel pipe, and the ferrule type straight-through terminal joint is beneficial to fire prevention, explosion-proof and high-altitude operation, and can eliminate the disadvantages caused by inadvertent welding. Therefore, it is a relatively advanced connector in the pipelines of automatic control devices of oil refining, chemical, petroleum, natural gas, food, pharmaceutical, instrumentation and other systems. It is suitable for connecting oil, gas, water and other medium pipelines.
