The metal hose is a high-quality flexible connecting pipe that is formed by extremely thin-walled, seamless or longitudinal seams and subjected to high-precision plastic deformation. It has many advantages such as good flexibility, fatigue resistance, high and low temperature resistance, and corrosion resistance. Widely used in petrochemical, steel metallurgy, rubber, machinery, electric power and other industries, then how to connect metal hoses?
Introduction of metal hose connection: hose crimping tool The joint of metal hose with a diameter of 50 mm or less is mainly threaded when subjected to high working pressure. After tightening the thread, the inside and outside of the two joints The tapered faces are tightly fitted to achieve a seal. The cone angle is generally 60 degrees and is also useful for 74 degrees. The structure is well sealed, but the concentricity of the two mating parts must be ensured during installation.
In order to solve the problems of repeated disassembly, assembly and difficulty in concentricity often seen in actual engineering, the joint can also be designed as a combination of a tapered surface and a ball head.
Flange type: The joint of metal hose with a diameter of 25 mm or more is mainly flanged under normal working pressure, and it is sealed in the form of a gutter. The looper flange, which can be rotated in the radial direction or in the axial direction, is connected to the two bodies by the tension of the fastening bolt. The structure has good sealing performance, but the processing is difficult, and the sealing surface is easily damaged. In special occasions where quick unloading is required, the hole through which the fastening bolt passes can be cut open to form a quick release flange.
Quick type: The joints of various metal hoses with a diameter of less than 100 mm are generally fast in the use conditions requiring fast loading and unloading. It is commonly used in the “O” ring seal made of fluoroplastic or special rubber. When the handle is moved at a certain angle, the claw corresponding to the multi-thread is locked; the tighter the “O”-shaped seal is pressed, the better the sealing performance. This structure is most suitable for fire scenes, battlefields, and other applications where quick loading and unloading are required. In a matter of seconds, a set of connectors can be docked or disassembled without any special tools.
Upper outer wire metal hose: Since the main part of the hose is made of austenitic stainless steel, the hose has excellent temperature resistance and corrosion resistance. The hose has a wide operating temperature range of -196- 600 degrees, the hose used can be selected according to the corrosiveness of the medium through the pipe to ensure the corrosion resistance of the hose.