Structure and composition of chemical fluid delivery hose

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Chemical fluid delivery hose, also known as chemical delivery hose or chemical pipeline, is a special pipeline used to transport chemical fluids. The following is a detailed introduction to chemical fluid delivery hoses:

1. Structure and composition
Chemical fluid delivery hoses are usually composed of three parts: inner layer delivery medium, middle reinforcement material and outer layer shell. The inner layer is in direct contact with the chemical fluid and needs to have corrosion resistance and wear resistance; the middle layer mainly plays a reinforcing role to improve the pressure resistance of the hose; the outer layer plays a protective role to prevent the hose from being damaged by the external environment.

2. Features and performance
Corrosion resistance: Chemical fluid delivery hoses can withstand corrosion from a variety of chemical substances, including strong acids, strong alkalis, salts and organic solvents.
High temperature resistance: Some materials of hoses can maintain stable performance in high temperature environments and will not deform or rupture due to temperature changes.
Pressure resistance: The hose has a certain pressure bearing capacity and can withstand the pressure of the fluid within a certain range.
Good sealing: The hose connection usually adopts a sealing structure, which can effectively prevent fluid leakage.
Soft and easy to bend: The hose has good softness and bending performance, and can adapt to various complex delivery environments.
3. Common materials and types
Polytetrafluoroethylene (PTFE) hose: It has high chemical stability and can withstand all strong acids, strong alkalis, strong oxidants, reducing agents and various organic solvents. At the same time, it also has the characteristics of low friction coefficient, good anti-stickiness, good aging resistance and electrical insulation performance.
Polyurethane (PU) hose: It is suitable for conveying low-viscosity media and has the characteristics of wear resistance, oil resistance and water resistance.
Silicone hose: It is suitable for high-temperature media and has excellent high-temperature resistance and chemical stability.
Rubber hose: It includes natural rubber and synthetic rubber, which have good elasticity and sealing properties and are suitable for conveying a variety of chemical fluids.
4. Application scenarios
Chemical fluid conveying hoses are widely used in the following fields:

Chemical industry: It is used for the transportation and processing of various chemicals in chemical production.
Petrochemical industry: It is used to transport chemical raw materials such as petroleum, natural gas, ethylene, propylene, etc.
Health care: It is used to transport various drugs, biological products and medical oxygen, etc.
Food processing: It is used to transport various food raw materials and processed products.
Laboratory: It is used for the transportation and processing of various reagents and hazardous chemicals in the laboratory.
5. Precautions for use
Choose the right hose: Choose the right hose material and specifications according to the nature, pressure and temperature range of the conveying medium.
Correct installation and connection: Ensure that the hose and connectors are free of defects such as damage and cracks, and are tightly and firmly connected to prevent leakage.
Take fixed measures: During use, fixed measures should be taken to prevent the hose from being damaged by forces such as stretching and compression.
Pay attention to operating specifications: Operators should be familiar with the use and safety matters of the hose and follow relevant operating procedures.
Regular inspection and maintenance: Regularly inspect and maintain the hose to ensure that it is in good condition.
In summary, chemical fluid conveying hoses play an important role in the chemical industry, petrochemical industry, health care, food processing and laboratories. During use, the appropriate hose material and specifications should be selected, and the relevant operating procedures and safety matters should be followed to ensure its safe and efficient operation.