Basic concepts and structures of metal hoses:
A metal flexible hose is a flexible pipeline composed of inner and outer metal thin-walled pipes, as well as flanges or joints at both ends. It has a certain degree of flexibility and elasticity, and can be used to connect pipes or equipment in different directions, heights, angles, and lengths. It is widely used in fields such as petroleum, chemical, aviation, and aerospace.
Specification requirements for metal hoses:
1. Length requirements: The length of metal flexible hoses should comply with relevant national and industry standards during use. Generally speaking, the length of a single section of metal flexible hose should not exceed 6m, and the length of a combination of multiple sections should not exceed 12m. This is because when connecting pipes or equipment, the length of the metal hose is too long, which will increase the stress and vibration of the fittings, thereby affecting the stable operation of the pipeline, and may even lead to fatigue fracture of the metal hose.
2. Flange requirements: The end connectors of metal hoses usually use flanges or fittings, and their specifications, models, and materials should meet the requirements of pipelines or equipment. When selecting metal hose flanges, comprehensive consideration should be given to factors such as usage environment, medium, pressure, temperature, etc., and installation and reinforcement should be strictly carried out in accordance with relevant standards.
3. Installation requirements: When installing metal hoses, the installation operating procedures should be followed, and the flange connection and reinforcement requirements should be strictly followed, especially paying attention to the fixing method and layout direction of the metal hoses. At the same time, support and reinforcement of brackets are required for long metal hoses to reduce external forces.
Precautions for metal hose
1. Selection of length: When using metal hoses, appropriate lengths should be selected according to actual needs to avoid situations of over length and over short, thereby ensuring stable operation and safe reliability.
2. Selection of specifications and materials: When selecting metal hoses, the specifications and materials that meet the requirements should be selected based on their usage environment and medium characteristics. Generally, metal hoses with high material strength, good corrosion resistance, and reliable sealing performance are chosen.
3. Maintenance: The service life of metal hoses is affected by their maintenance, and regular inspections and maintenance should be carried out. Damaged and aged metal hoses should be replaced in a timely manner to ensure their normal use.
【 Conclusion 】
The use of metal hoses is very common, but certain regulations and precautions need to be followed during use. Especially the length requirement of metal hoses should not exceed the specified range to ensure the stable operation and safe reliability of the pipeline.
