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Plastic Fabricators

INDUSTRIAL CORROSION PROTECTION

PP / RIGID PVC / FRP EXHAUST DUCTING & CANOPY HOODS WITH DAMPER

Manufactured by Plastic Fabricators

Efficient industrial ventilation begins with a well-designed ducting system. Whether the application involves chemical processing, laboratory exhaust, electroplating, pharmaceutical manufacturing, or acid handling, contaminated air must be safely collected and transported from its source to the blower, scrubber, or exhaust stack without leakage or corrosion. Plastic Fabricators manufactures PP, Rigid PVC, and FRP Exhaust Ducting Systems with Canopy Hoods and Dampers for industries that operate in corrosive environments. Designed to withstand continuous exposure to acids, alkalis, and chemical vapours, our ducting systems provide reliable airflow while maintaining long-term structural integrity.

The ducting is fabricated using 3 mm and 5 mm thick Polypropylene (PP) or Rigid PVC sheets, externally reinforced with FRP (Fibreglass Reinforced Plastic) for additional mechanical strength. The result is a lightweight, leak-proof, corrosion-resistant system suitable for continuous industrial operation at temperatures up to 110°C.

25+
Years of Experience
38×38mm
Mesh Box Size
ZERO
Scrap Value
3
Grating Types
TECHNICAL DATA

WHAT ARE PP / RIGID PVC / FRP DUCTING SYSTEMS?

Industrial Exhaust Ductwork refers to a system of ductwork, fittings, canopy hoods, dampers and accessories that safely carries polluted air from the place of emission to the exhaust blower, scrubber or chimney.

The difference between traditional galvanized or mild steel ductwork and PP, Rigid PVC, and FRP ductwork is that PP, Rigid PVC, and FRP ducting systems have been designed to handle corrosive materials. They resist corrosion making them the best choice when dealing with acid fumes, alkaline vapor, solvent exhaust and other aggressive process gases that will eat up conventional metal ducting.

We manufacture complete ducting systems that consist of straight ducting, bends, reducers, branchings, canopy hoods, dampers, expansion joints, flanges and special fittings. Each system is fabricated to match customer process layout, airflow needs and installation conditions.

Why Industries Choose Our Ducting Systems

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Excellent Corrosion Resistance Made of corrosion resistant thermoplastics, the ducting is capable of resisting exposure to many acids, bases and corrosive gases used in chemical processing industries. Unlike the traditional metallic ducts, it does not rust upon contact with any chemicals, increasing the lifetime of the equipment and reducing the maintenance costs.
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Leak-Proof Construction Careful joint construction and flange fittings reduce the escape of air from the exhaust system. Leak-proof construction contributes to improved worker safety, higher airflow efficiency, reduced escape of contaminated air, and efficient operation of the exhaust system.
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High Mechanical Strength Although polypropylene and PVC can withstand the chemicals, the added FRP provides extra stiffness to the ducts. The ducts become lightweight but have enough mechanical strength for installation in an industrial environment.
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Custom Fabrication Every project has unique routing requirements. We manufacture round ducts, rectangular ducts, elbows, reducers, tees, branches, expansion pieces, flexible connections, inspection doors, flanges, and dampers, all fabricated according to customer drawings or site conditions.
Long Service Life A smooth surface minimizes dust accumulation and lowers resistance to airflow. Combined with corrosion resistant design, it ensures reliable and long lasting performance with minimum maintenance needs.
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Complete Exhaust Solutions Plastic Fabricators also produces complementary products including Laboratory Fume Hood, PP FRP Scrubber, Direct Drive Blower, Chimney, and Exhaust Stack. This makes it possible for the client to purchase an exhaust system from one manufacturer making all major components compatible.
COMPLETE PRODUCT RANGE

WHY MATERIAL SELECTION IS IMPORTANT

Ducting systems in industrial environments face constant exposure to aggressive chemicals, high temperatures, and moisture. Choosing the wrong material may cause corrosion, leakage, higher maintenance, and even early replacement.

PP, Rigid PVC, and FRP all have their unique qualities when used in various processes. Using corrosion-resistant thermoplastics along with FRP in ducting systems provides the customer with a strong solution.

OUR DUCTING & CANOPY HOOD SYSTEMS

It is essential to have a well-designed exhaust system which consists of not only ducts but also components such as the canopy hood for fume collection and damper for controlling air flow.

We offer complete PP, Rigid PVC, and FRP ducting systems, suitable for corrosive environments, which are designed as per the process layout, airflow requirement, chemical resistance and installation space. Whatever may be the purpose whether it is for laboratory, electroplating lines, chemical reactors, pickling tanks, pharmaceutical processing rooms or any type of scrubber system, we design and fabricate complete ducting systems which work along with the blowers, scrubbers, chimneys and other ventilation equipment. Our ducting systems are fabricated using 3 mm and 5 mm thick PP and Rigid PVC sheet, reinforced by FRP from outside.

Built for Reliable Industrial Performance

Every ducting system is Each ducting unit is engineered to deliver reliable airflow without being susceptible to corrosion in an industrial environment. to provide dependable airflow while resisting corrosion in demanding industrial environments.

PP / Rigid PVC Construction

The internal surface of the pipe consists of Polypropylene or Rigid PVC which is used frequently to transport the gases generated through industrial processes that are corrosive in nature.

Such materials have high resistance to many:

  • Acid fumes
  • Alkali fumes
  • Corrosive gases
  • Moisture-laden chemicals

External FRP Reinforcement

The thermoplastic duct is reinforced on its outside surface using Fibreglass Reinforced Plastic (FRP).

This provides:

  • Better mechanical strength
  • Increased stiffness of structure
  • Longer life expectancy
  • Increased durability for industrial purposes

The combination of PP/PVC and FRP forms a light and sturdy ducting system.

Leak-Proof Fabrication

Ducts and duct fittings are manufactured with proper joints and flanges to avoid air leakages.

Benefits include:

  • Efficient air flow
  • Improved performance of the system
  • Prevention of fume leakage
  • Better work environment

Smooth Internal Surface

A smooth interior of the duct makes it possible to reduce the resistance of air flow and prevent dust or chemical build-up in the duct.

Advantages:

  • Air flow efficiency
  • Pressure loss reduction
  • Easy to clean
  • Low maintenance

Temperature Resistance

Depending on materials and process conditions, the ducting system is able to work at temperatures up to about 110°C.

01
WHERE WE APPLY FRP

TYPES OF DUCTING WE MANUFACTURE

Round Ducting

Perfect for providing efficient air flow with minimum pressure drop.

Applications include:

  • Lab Exhaust
  • Chemical Plants
  • Pharmaceutical Plants
  • Air Pollution Control
Rectangular Ducting

Used when there is space restriction or need of rectangle fittings for equipment layout.

Fabricated Fittings

Complete ducting systems include:

  • 90° Elbows
  • 45° Elbows
  • Tees
  • Reducer
  • Branches
  • Offset
  • Expansion Joints
  • Flexible Connectors
  • Inspection Doors
  • Flange Connections

Every fitting is manufactured according to the project layout and airflow requirements.

02
WHERE WE APPLY FRP

TYPES OF CANOPY HOODS

Industrial Canopy Hood

Made for the purpose of capturing vapors that rise spontaneously from open process tanks and workstations.

Common applications include:

  • Chemical Mixing Tanks
  • Pickling Tanks
  • Electroplating Tanks
  • Washing Tanks
  • Process Tanks
Laboratory Canopy Hood

Fitted above laboratory apparatus where there is a need for source capture.

Often used with:

  • Laboratory Heating Devices
  • Pilot Plants
  • Small Process Devices
Process Canopy Hood

Made specially for industrial production equipment where there is a need for exhaust collection over an extended working area.

COMPLETE PRODUCT RANGE

WHERE OUR DUCTING SYSTEMS ARE USED?

PP / Rigid PVC / FRP Ducting Systems are extensively applied wherever it is essential to convey contaminated process air safely.

Typical applications include:

  • Laboratory Exhaust Systems
  • Chemical Process Industry
  • Pharmaceutical Manufacturing Industry
  • Electroplating Plant
  • Acid Pickle Lines
  • Fertilizer Plant
  • Dyes & Pigments
  • Bulk Drug Manufacturing
  • Process Room
  • Battery Manufacturing
  • Water Treatment Plant
  • Air Pollution Control System
  • Chemical Storage Area
  • Laboratory Fume Hood
  • Wet Scrubber System

Such ducting systems may either be part of a new system or incorporated in the existing ventilation system.

ORDERING REFERENCE

SPECIFICATION APPROACH

Each industrial ventilation system varies. The amount of air flow, velocity of the ducts, composition of the gases, temperatures, and facility configuration all determine the type of ducting required.

Plastic Fabricators offers PP, Rigid PVC and FRP Ducting Systems in custom diameters, thickness and configuration for chemical plants, pharmaceutical, laboratory and electro-plating facilities.

Feature Specification
Construction Material PP / Rigid PVC with FRP Reinforcement
Sheet Thickness 3 mm & 5 mm (Standard)
Duct Shape Round / Rectangular
Hood Type Canopy Hood / Process Hood
Damper Type Butterfly / Volume Control / Manual
Operating Temperature Up to 110°C*
Joint Type Flanged / Leak-Proof Fabricated
Installation Indoor & Outdoor
Custom Fabrication Available
Designed for Corrosive Industrial Applications

WHY PP / PVC / FRP DUCTING OUTPERFORMS METAL DUCTING

In most industrial applications, typical galvanized steel ducts or even mild steel ducts are subjected to corrosive gases on a daily basis. Chemical attacks can cause rusting, leakage, lower air flow, and higher maintenance costs.

The PP, Rigid PVC, and FRP duct systems are chosen for this harsh environment since they have an inherent ability to resist many types of chemicals.

Corrosion Resistance

Thermoplastic materials resist many:

  • Acid gases
  • Alkaline fumes
  • Corrosive gases
  • Damp air from processes
  • Exhaust chemical fumes

This makes them well suited for chemical processing industries where conventional metallic ductwork may require frequent repairs or replacement.

Lightweight Construction

Compared with fabricated steel ducting, PP and PVC systems are significantly lighter.

Benefits include:

  • Easy transport
  • Quick installation
  • Minimal structural loading
  • Easy maintenance

Smooth Airflow

The smooth inner surface results in lower frictional loss and facilitates proper air flow through the exhaust system.

This contributes to:

  • Pressure drop reduction
  • Improvement in blower efficiency
  • Lower dust accumulation
  • Ease of cleaning

Long Service Life

The combination of plastic ducting material and reinforcement in the form of FRP ensures reliable service for a long period.

CUSTOM FABRICATION SERVICES

COMPLETE INDUSTRIAL EXHAUST SYSTEMS

Plastic Fabricators manufactures complete industrial exhaust systems and not just the separate parts such as ducts.

The following are the parts that may be included in our complete systems:

  • Ducting (PP / Rigid PVC / FRP)
  • Industrial Canopy Hoods
  • Laboratory Fume Hoods
  • Butterfly Dampers
  • Volume Control Dampers
  • Direct Drive Blowers
  • PP FRP Scrubbers
  • Chimneys
  • Structures
  • Expansion Joints
  • Flexible Connectors

Having all major components designed together helps ensure proper airflow, compatibility, and easier installation.

CUSTOM MANUFACTURING

Designed Around Your Plant Layout
  • Each manufacturing facility has its own specific needs for ventilation.
  • Our engineering team develops customised ducting systems based on:
  • Process Equipment
  • Chemicals
  • Aeration Needs
  • Plant Layout
  • Available Vertical Space
  • Structure
  • Room for Future Growth
  • Site Conditions
Customisation Options
  • Circular Ducting
  • Rectangular Ducting
  • Large Ducting
  • Custom Thickness
  • Several Branching Ducts
  • Specialized Canopy Hoods
  • High Capacity Exhaust System
  • Customized Dampers
  • Modular Components
  • Export Packing

TECHNICAL SUPPORT

We Provide Full Technical Support

Our technical team is available to help you select the right profiles, verify load capacities, and confirm chemical compatibility for your specific application.

We Provide
  • Load capacity calculations
  • Material selection guidance
  • Installation recommendations
  • Chemical compatibility data
  • Sample profiles for testing (charge applies)
Contact Us For
  • Project quotations
  • Technical questions
  • Custom profile development
  • Bulk order pricing
ORDERING INFORMATION

How to Order

Call or message us directly with your requirements. No complex procurement process just tell us what you need, and we will get back to you with pricing and availability. If you are looking for a new or replacement PP grid, send whatever information you have available.

Information Required
  • Application
  • Airflow (CFM / CMH)
  • Duct Diameter
  • Operating Temperature
  • Chemical Media
  • Plant Layout or GA Drawing
  • Hood Type Required
  • Damper Requirement
  • Installation Location
  • Quantity
Example Enquiry
Required PP + FRP ducting system for hydrochloric acid fume extraction from an electroplating line. Airflow requirement approximately 8,500 CFM with three canopy hoods, butterfly dampers, and connection to an existing PP FRP scrubber. Please recommend the duct sizes and provide a quotation.
Contact — Plastic Fabricators

Call or message for pricing, stock availability, technical data sheets, sample requests, and custom quotes.

All information accurate as of publication. Specifications subject to change with process improvements. Call to confirm current specifications for your application.

Ready to Order or Quote?

Call or message us directly. We provide load calculations, material selection guidance, chemical compatibility data, and sample profiles.