Description
What is polypropylene/PP air duct?
Jul 11, 2022 | Category: Plastic Pipe | Tags: polypropylene/PP air duct, PP air ducts, PP anti-corrosion pipeline system
Polypropylene PP air ducts are also known as PP ventilation ducts. They are injection molded from polypropylene or processed through polypropylene sheets. They are generally divided into ordinary models and flame retardant models. Common colors are white, gray, and natural.
Our PP air ducts are fully customizable in size, wall thickness, material (standard/flame retardant) and color, with competitive pricing for both small batch and bulk engineering orders.
Polypropylene PP air duct features strong ventilation capacity, stable acid and alkali resistance, corrosion resistance, and temperature resistance. It can prevent secondary chemical reactions between the medium in the pipe and the pipe body, and reduce the purification difficulty of industrial waste gas and waste liquid. PP air ducts support direct flange connection, with simple, convenient and fast installation, which greatly improves installation efficiency. PP plastic air ducts are widely used in corrosive gas treatment in workshops, with excellent construction performance. The PP pipes are light in weight, easy to install and replace, and the overall project cost is low.
Check out our Fire Retardant PP Air Duct Products
PP Flame Retardant Duct
Introduction of polypropylene PP air duct material
Material: Polypropylene is abbreviated as PP, which is a colorless, odorless, non-toxic, translucent solid substance. PP polypropylene is a high-performance thermoplastic synthetic resin, a colorless, translucent, lightweight general-purpose plastic. It has excellent chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties, and good high wear-resistant processing performance.
Advantages of polypropylene PP air duct
- No rust: PP duct can withstand the corrosion of high concentration acid and alkali with pH value ranging from 1 to 14 in a wide temperature range.
- Wear resistance and no scaling: The inner wall of the PP pipe and its fittings is uniform and smooth, with low flow resistance and no scaling.
- Reduce vibration and noise: PP duct has excellent sound insulation performance, which can significantly reduce vibration and noise caused by air flow.
- Anti-freeze cracking: PP material has excellent elasticity, allowing the cross-section of the pipe and fittings to expand with frost heaving liquid without bursting.
- Anti-condensation, low heat loss: PP material is a poor thermal conductor, which can effectively reduce condensation and heat loss.
- Simple installation: PP pipe is light in weight, easy to install and operate, and has excellent weldability.
- Long service life: PP duct system has a service life of up to 50 years under specified operating conditions.
PP air duct system structure
To form a complete PP anti-corrosion pipeline system, in addition to PP ducts, matching PP air duct accessories are essential. They can be combined and installed to form a complete exhaust air pipeline system.It resists corrosion, acids, and alkalis. Core accessories include PP elbow, PP tee, PP reducer, PP flange, PP casing, PP air valve, which are collectively referred to as PP duct exhaust system.
PP air duct installation method
- Socket connection: A PP sleeve is welded at the end of each air duct to facilitate the insertion of the next air duct for stable connection.
- Flange connection: PP flanges are welded at both ends of each air duct, and the screw locking connection is adopted during installation, which is suitable for high-strength and high-sealing working conditions.
- Reinforcement method: In industrial exhaust systems, centrifugal fans are usually installed at the end. They exhaust air and create negative pressure inside the PP air duct. Industry design specifications stipulate the required wall thickness and reinforcement method of PP air ducts under specific wind speed. Usually, PP air ducts are reinforced by outer flanges. For example, a 3-meter-long air duct is reinforced with 2 flanges, which is beautiful and durable. Large square air ducts are reinforced by outer flanges, and internal PP circular pipes are used for structural support.
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