What is the function of metal hose?

The function is to connect the mesh sleeve to the entire bellows, while the fitting is also the component that connects the metal hose and metal hose to other pipe fittings and equipment. It ensures that the medium works properly in the piping system. The material of the coupling is usually the same as that of the bellows and the web sleeve, and most of them are stainless steel.

In order to reduce production costs, when transporting non-corrosive or non-corrosive media, some larger diameter metal hoses can be made of carbon steel. Metal hose couplings for corrosive media (if designed) to take appropriate measures to avoid contact with the media, and can also be made of carbon steel. The structure of the couplings is roughly divided into three categories: screw-type, flange-type and quick-type: under high working conditions, the thread diameter of less than 50 mm metal hose (explosion-proof tube) couplings Pressure they are mostly threaded. After tightening the threads, the inner and outer conical surfaces of the two fittings are tightly fitted to achieve a seal. The taper angle is usually 60 degrees, while 74 degrees is also useful. The construction provides good sealing performance, but the concentricity of the two mating parts must be ensured during installation. To address the repeated disassembly, assembly, and concentricity issues that often arise in real projects, fittings can also be designed to match the taper and ball.