Product Overview

The FRP centrifugal fan is a corrosion-resistant industrial centrifugal fan manufactured with fiberglass-reinforced plastic (FRP). It is designed for conveying acidic, alkaline, saline and other corrosive gases in industrial ventilation and exhaust systems.

EMS supplies customized FRP Centrifugal Fans for chemical plants, electroplating facilities, wastewater treatment, scrubber systems, industrial waste gas treatment, electronics manufacturing and other applications where corrosion resistance is required.

Main Applications

Chemical Exhaust Systems
Corrosive Gas Exhaust
Acid Fume Exhaust
Alkali Gas Exhaust
Electroplating Exhaust
Chemical Plant Ventilation
Laboratory Exhaust
Industrial Waste Gas Treatment
Scrubber Exhaust
VOC Exhaust Systems
Pickling Line Exhaust
Electronics Manufacturing
Wastewater Treatment Ventilation
Corrosive Air Ventilation

Typical Technical Parameters

Parameter	Typical Range
Fan Type	FRP centrifugal fan
Airflow	1,000–80,000 m³/h
Total Pressure	500–3,000 Pa
Motor Power	0.75–110 kW
Fan Speed	730–2,900 rpm
Gas Temperature	Typically ≤80°C
Impeller Material	FRP
Casing Material	FRP
Drive Type	Direct Drive / Belt Drive
Fan Structure	Single-Suction Centrifugal
Bearing	Industrial Bearing
Installation	Horizontal / Customized
Frequency	50 Hz / 60 Hz
Operation	Continuous Duty

Engineering Note: These are typical reference ranges rather than fixed specifications for every 4-72 configuration. Actual performance depends on fan size, airflow, pressure, gas temperature, gas composition and total system resistance.

Working Principle

Corrosive gas enters the fan through the inlet and is accelerated by the rotating FRP centrifugal impeller. Centrifugal force increases the gas velocity and pressure while changing the airflow direction. The volute collects and guides the gas toward the discharge duct and downstream treatment equipment.

Typical process:

Corrosive Gas → 4-72 FRP Fan → Scrubber → Gas Treatment → Exhaust Stack

Alternative process:

Production Equipment → FRP Exhaust Fan → Duct → Waste Gas Treatment System

Key Features

Excellent Corrosion Resistance

FRP construction provides corrosion resistance for many acidic, alkaline and chemically aggressive gas environments.

Designed for Chemical Exhaust

The fan is suitable for acid fumes, alkaline gases, chemical process exhaust and other corrosive industrial ventilation applications.

Lightweight FRP Construction

FRP provides a lightweight alternative to conventional metal fan construction while offering strong resistance to many corrosive environments.

Multiple Fan Sizes

Different fan sizes can be selected according to airflow, pressure, duct dimensions and available installation space.

Compatible with Scrubber Systems

The 4-72 FRP fan can be integrated with scrubbers, absorption towers and industrial waste gas treatment systems.

Customized Engineering

EMS can customize the fan according to gas composition, concentration, temperature, airflow, pressure, materials, motor power, drive type and installation requirements.

Typical Industries

Chemical Industry

Chemical Plants

Chemical Processing Lines

Acid and Alkali Production

Chemical Storage Areas

Corrosive Gas Exhaust

Electroplating & Surface Treatment

Electroplating Plants

Pickling Lines

Metal Surface Treatment

Acid Cleaning Systems

Environmental Protection

Scrubber Systems

Industrial Waste Gas Treatment

Corrosive Exhaust Systems

VOC Treatment Systems

Electronics & Semiconductor

Electronics Manufacturing

Semiconductor Facilities

PCB Production

Chemical Exhaust Systems

Wastewater Treatment

Wastewater Treatment Plants

Chemical Storage

Corrosive Gas Exhaust

Odor Control Systems

Fan Selection Information

For proper selection of a FRP centrifugal fan, customers should provide:

Required Airflow
Total or Static Pressure
Gas Temperature
Gas Composition
Corrosive Medium
Gas Concentration
Dust or Particulate Content
Duct Size and Length
Scrubber / Treatment Equipment Resistance
Motor Voltage and Frequency
Installation Position
Operating Hours

Important: FRP material selection should not be based only on whether the gas is "acidic" or "alkaline." Different chemicals, concentrations and temperatures have different compatibility requirements. The final resin and FRP configuration should be selected according to the actual gas composition and operating conditions.