Comparison of PVC industrial flexible duct 0.38mm and 0.6mm thickness: how to scientifically select according to the scene

In the design of industrial ventilation system, PVC flexible duct has become the mainstream choice because of its corrosion resistance and easy installation. Facing the market demand division between 0.38mm standard model and 0.6mm thickened model, this paper objectively analyzes the adaptability scenario of the two specifications through laboratory data and engineering examples.

▶ Preferred case for 0.38mm standard model

1.Short-term temporary ventilation system

Construction site dust removal, temporary exhaust ventilation for exhibitions and other projects <6 months, measured material cost savings of 37%.

2.Low pressure circulation system

Suitable for air exchange in workshops with fan pressure <800Pa, with steel ring support to meet ISO 14644 cleanliness requirements.

3.Lightly corrosive environment

Stable performance in conventional acid and alkali environments of pH 5-9, suitable for food processing and electronic assembly workshops.

▶ Recommended conditions for 0.6mm thickened models

1.High-risk operating environments

Scenarios with sharp object impacts such as metal grinding, slag transportation, etc., with a 210% increase in abrasion resistance (see OSHA 1926.55 standard)

2.High temperature and high pressure system

High-temperature exhaust emissions below 80°C, with fiberglass reinforcement to withstand 1.5 times the design pressure

3.Permanent installation

Pharmaceutical factory GMP workshop, underground parking lot and other places that require more than 10 years of service life

Note: TCO analysis based on a 5-year life cycle of 200 meters of pipe, including replacement losses and downtime costs.

1.Is the system design pressure >1200 Pa? → Yes → Select 0.6mm

2.Is it exposed to high temperature oil mist/metal debris? → Yes → Select 0.6mm

3.Is the budget limited to ¥25/m? → Yes → Select 0.38mm

4.Do you need to change the pipe frequently? → Yes → Choose 0.38mm

●Automotive Manufacturing: 0.6mm models increased to 67% of welding shop use

●Data center: 0.38mm models due to the lightweight advantage of cold aisle applications increased by 41

●Environmental protection industry: the two specifications in the VOCs management shows 1:1 procurement ratio

Thickness selection is essentially a systems engineering optimization problem. It is recommended that this be done prior to procurement:

● Media composition test (with particle hardness analysis)

● Pressure pulsation test

● Full cycle cost simulation

Energy efficiency of ventilation systems can be increased by 15%-40% through scientific selection.

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