The ferrule joint is mainly composed of three parts: the joint body, the ferrule and the nut. When the ferrule and nut are placed on the steel pipe and inserted into the joint body, and the nut is tightened, the outer front end of the ferrule fits the conical surface of the joint body, and the inner blade evenly bites into the seamless steel pipe to form an effective seal. It is easy to install and has high voltage resistance, so it is widely used.
The working principle of the ferrule joint is to insert the steel pipe into the ferrule, lock it with the ferrule nut, resist the ferrule, and cut into the pipe to seal. It does not require welding when connecting to steel pipes, which is beneficial to fire protection, explosion-proof and high-altitude operations, and can eliminate the disadvantages caused by careless welding. Therefore, it is a relatively advanced connector in the pipelines of automatic control devices in refining, chemical, petroleum, natural gas, food, pharmaceutical, instrumentation and other systems. Suitable for connecting oil, gas, water and other media pipelines.