compression fitting
What is the compression fittings ?
What is a compression fitting ? Compression fitting is mainly composed of three parts: joint body, double ferrules and nut,it is also called ferrule fitting or double ferrules tube fitting. When the ferrule and nut sleeve are inserted into the joint body on the steel pipe, when the nut is tightened,
The outer side of the front end of the ferrule is fitted to the cone 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 pressure resistance, so it is widely used.
The compression fitting(ferrule fitting , double ferrules tube fitting) has the characteristics of reliable connection, high pressure resistance, temperature resistance, good sealing and repeatability, convenient installation and maintenance, and safe and reliable work.
The working principle of the compression fitting(ferrule fitting , double ferrules tube fitting)is that the working principle of the ferrule fitting is to insert the steel pipe into the ferrule, lock it with the ferrule nut, resist the ferrule, and cut into the tube and seal.
It does not need to be welded when connected with steel pipe, which is conducive to fireproof, explosion-proof and high-altitude work, and can eliminate the disadvantages caused by careless welding. Therefore, it is refining, chemical, oil, natural gas, food, pharmaceutical,
A relatively advanced connection in the pipeline of automatic control devices of instrumentation and other systems. It is suitable for oil, gas, water and other media pipeline connection.
Advantages of the design of compression fitting: Dual ferrulers separate sealing from gripping the tubing, and each ferrule is optimized for its corresponding function.
The front ferrule is used to form a seal: the seal between the fitting body and the outer diameter of the tube. When the nut is rotated, the double ferrules will advance the front ferrule axially, applying an effective tube grip radially.
The use of compression fitting(ferrule fitting , double ferrules tube fitting)is a little: 1. Excellent gas sealing and tube gripping. 2. Easy to install correctly. 3. Excellent vibration fatigue resistance and tube support
What should be done with the tube when installing the compression fitting(ferrule fitting , double ferrules tube fitting)?
1. The part of the tube surface inserted into the compression fitting should be smooth and intact to avoid scratches and other defects.
2. The end face of the tube should be perpendicular to the axis of the tube, and the pipe mouth should be burr-free.
3. If the pipe is to be bent, the pipe end should reserve a certain length, to follow the recommended value given by the manufacturer of the joint, under normal circumstances, the length of L is not less than 3 times the length of the nut,
Failure to do so will affect the insertion and sealing of the tube.
Learn more compression fittings, please see below:
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