Fiberglass Reinforced Plastic (FRP) Ducts: An Analysis of Characteristics, Application Scenarios, and Core Advantages

 

As a high - performance composite ventilation duct, FRP ducts have become an important part of industrial and building ventilation systems due to their unique material characteristics and wide application fields. The following provides a detailed analysis from aspects such as material composition, core features, application scenarios, and comprehensive advantages.

 

I. Material Composition and Manufacturing Process

FRP ducts are made through a winding process using a resin matrix, glass fiber reinforcement materials, and inorganic fillers such as quartz sand. The resin provides corrosion resistance and high - molecular stability, the glass fiber enhances mechanical strength, and the quartz sand as a sand - sandwiched layer further optimizes the pipe wall structure. The combination of these composite materials ensures both lightweight and a balance between high strength and corrosion resistance.

 

II. Core Features and Performance Advantages

1.Excellent Corrosion Resistance

FRP ducts can withstand corrosion from acids, alkalis, salts, seawater, and chemical media, making them suitable for corrosive environments in industries such as chemical engineering and metallurgy. The fact that they do not require additional anti - corrosion treatment significantly reduces maintenance costs.

2.High Strength and Lightweight

Compared with traditional metal pipes, FRP ducts weigh only 30% of steel pipes. However, they have excellent compressive and bending strength and can withstand high - pressure and heavy - load environments. The transportation and installation efficiency is increased by more than 30%.

3.Long Service Life and Stability

Within the temperature range of - 40℃ to 80℃, FRP ducts have stable performance, and their service life can reach more than 30 years. Their inner walls are smooth with a low friction coefficient, are not prone to scaling after long - term use, and the flow attenuation rate is less than 10%.

4.Convenient Installation and Multi - functional Adaptability

The length of a single pipe can reach 12 meters, reducing the number of interfaces and lowering the leakage risk. Customized designs are supported to adapt to various cross - section shapes such as circular and rectangular ones, meeting the needs of complex projects.

 

III. Main Application Scenarios

1.Industrial Ventilation Systems

In industries such as petroleum, chemical engineering, and power, they are used to transport air containing corrosive gases or dust, ensuring the safety of the production environment.

2.Building Air - Conditioning and Smoke - Exhaust Systems

In commercial complexes, underground facilities and other places, their flame - retardancy (Class A fireproof) and heat - insulation performance are utilized to construct efficient air - supply for air - conditioning and smoke - exhaust channels in case of fire.

3.Environmental Protection and Agricultural Engineering

In the exhaust of waste gases in sewage treatment plants and the ventilation and irrigation systems of agricultural greenhouses, the moisture - resistance and anti - aging characteristics of FRP ducts are outstanding.

4.Special Environmental Requirements

They are suitable for scenarios such as high - humidity mines and salt - fog environments in coastal areas, solving the problems of easy rusting and short service life of traditional metal pipes.

 

IV. Purchase and Usage Suggestions

1.Parameter Matching

Select the resin type according to the characteristics of the medium (e.g., food - grade resin for drinking water transportation), and determine the pipe wall thickness and the number of reinforcement layers based on the pressure requirements.

2.Process Verification

Give priority to products formed by the winding process, whose structural compactness is better than that of products made by the hand - lay - up process. Third - party test reports can be provided to verify strength and corrosion - resistance indicators.

3.Installation Optimization

Design a modular hoisting plan using the lightweight feature, combined with flange connections or socket joints, to reduce on - site welding procedures and shorten the construction period by 20% - 40%.

 

As the preferred material in modern engineering, FRP ducts continuously promote the development of ventilation systems towards high efficiency, environmental protection, and low cost through material innovation and process upgrading. Their comprehensive performance makes them irreplaceable in the fields of industrial upgrading and green building.