As a key device for transporting high-pressure gases or liquids in the industrial field, high-pressure air ducts have become an indispensable part of industries such as petroleum, chemical engineering, power, and metallurgy, thanks to their characteristics of high-pressure resistance, tensile resistance, and corrosion resistance. The following provides a detailed introduction from aspects such as performance features, application scenarios, selection points, and usage suggestions.

 

 I. Core Performance Features

1. Outstanding High-pressure Resistance

High-pressure air ducts are designed to withstand extremely high pressures. For some products, the burst pressure can reach 200 kg/cm², and the working pressure is stable at 60 kg/cm², making them suitable for the transportation requirements of high-pressure gases, liquids, or steam. Their internal structure usually adopts special processes, such as a composite structure of a polyester and polyester thread braided layer and PVC material, ensuring that the pipes are not easily deformed or burst under high-pressure environments.

2. Excellent Tensile and Mechanical Strength

Through the bonding technology of a high-density polyester thread layer and engineering plastics, the pipes have both flexibility and tensile resistance, effectively coping with external forces such as stretching and compression during installation or use, and reducing the risk of damage caused by mechanical stress.

3. Corrosion Resistance and Chemical Stability

High-pressure air ducts have good resistance to acids, alkalis, oils, and corrosive media, making them suitable for harsh environments such as chemical engineering and marine engineering. Common materials such as stainless steel and alloy steel further enhance the corrosion resistance and extend the service life.

4. Lightweight, Flexible, and Durable

By optimizing the material ratio (such as a mixture of PVC and polyester threads), the pipes reduce weight while maintaining high strength, facilitating installation and maintenance. High-quality materials combined with strict production management can ensure the long-term and stable operation of the pipes.

 

 II. Main Application Areas

High-pressure air ducts are widely used in the following scenarios:

- Industrial Equipment Matching: Such as gas transportation for high-pressure cleaners, spraying machines, and welding and cutting equipment, as well as in oil drilling and natural gas transportation systems.

- Energy and Chemical Engineering: Used for the transportation of acid and alkali media in chemical plants, steam pipes in the power industry, and cooling systems for metallurgical equipment.

- Special Environment Operations: Including gas supply for shipbuilding and underwater operation equipment, as well as liquid transmission for agricultural machinery.

 

 III. Key Points for Selection and Specification Choice

1. Material Selection

Select appropriate materials according to the characteristics of the medium:

- Stainless Steel: Suitable for highly corrosive environments, such as the transportation of chemical reaction media.

- Carbon Steel/Alloy Steel: Low in cost and high in strength, widely used in general industrial scenarios.

- Engineering Plastic Composite Materials: Combining lightness and chemical resistance, suitable for mobile equipment or complex working conditions.

2. Matching of Size and Pressure

The inner diameter of the pipe needs to be determined according to the flow rate requirements to avoid excessive wear caused by too high a flow velocity due to a small size. At the same time, the pressure rating should be 1.5 times higher than the maximum working pressure of the system to ensure a safety margin.

3. Consideration of Environmental Adaptability

In high-temperature environments, heat-resistant coatings or metal materials should be selected; in scenarios with frequent bending, flexible pipes such as hoses reinforced with spiral steel wires should be preferred.

 

 IV. Installation and Maintenance Suggestions

1. Standardized Installation Process

Before installation, check that the pipes are undamaged. Use special seals at the connections to avoid leakage. The bending radius should meet the design requirements to prevent local stress concentration caused by bending.

2. Regular Maintenance and Inspection