A brief history of the development of reusable hose fitting

Metal hose occupies an extremely important position in modern industry. Well, it is how to develop it?
Initially, people used animal skins sewn into a tubular structure to meet the needs of the production struggles. After a fairly long period of time,reusable hydraulic hose fittings to the seventeenth century leaves, Netherlands Wan? Del cap gold brothers made ​​a longitudinal suture canvas hose, at the time of the fire services are widely used. Later, with the development of rubber in the international market and the emergence of curing industry, hoses and metal wire or twine and other fabrics armored hose come out. However, the project some steam, high temperature hot medium class;reusable hydraulic fittings liquid hydrogen, liquid oxygen, liquid helium cryogenic medium class; gasoline, kerosene, acid, alkali and other corrosive media ...... if the hose to transport, of course not. Especially under high temperature conditions, it's more difficult to ensure the safety and reliability. Therefore, it gradually to focus on the metal pipe, the changes in the geometry of the metallic tube, so that the respective inner and outer corrugated surface. Thus, both have the same flexibility with hose; meanwhile, also has a high temperature resistance, low temperature resistance, aging resistance, corrosion resistance. Thus, as the metal bellows metal hose body thus produced. Structural characteristics of the metal hose: metal hose generally consist bellows, nets and joints of three parts....