Containment Hood for Industrial Dust Control

Product Specifications

Technical details and manufacturing context for Containment Hood

Definition

A containment hood is a component of a dust containment system, designed to physically enclose dust-generating equipment or processes. It creates a controlled environment that prevents dust from dispersing into the workplace atmosphere by capturing emissions at the point of generation. The hood is typically connected to an extraction system that removes the captured dust for filtration or disposal, ensuring worker safety and maintaining air quality standards in manufacturing facilities. This product is listed in the CNFX directory as a reference for industrial buyers and engineers. The hood operates on the principle of local exhaust ventilation, establishing negative pressure within the enclosure to draw airborne particles into the hood before they can escape. The captured dust is then transported through ductwork to filtration equipment. Available materials include galvanized steel, stainless steel, and polycarbonate, with material selection depending on the application's corrosiveness and temperature requirements. Key parameters to consider when selecting a hood include airflow capacity (500–2000 m³/h), capture velocity (0.5–1.5 m/s, per ACGIH), filter efficiency (99.97–99.995% for HEPA H13–H14, per EN 1822), operating temperature (-20–60°C), pressure drop (150–500 Pa), noise level (65–75 dB(A) at 1 m, per ISO 3744), material grade (304–316L stainless steel, per ASTM A240), window thickness (4–6 mm), weight (50–200 kg), and dimensions (800×600×1200 to 2000×1500×2500 mm). These values are reference ranges and must be verified with the manufacturer for specific models. The hood is not a standalone solution; it requires integration with an extraction system and proper ductwork. Regular maintenance includes checking seals, filters, and pressure differentials. Failure to maintain negative pressure or replace degraded seals can lead to dust leakage. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

The containment hood operates on the principle of local exhaust ventilation. It creates an enclosure around dust-producing machinery or processes, establishing negative pressure within the hood through connection to an extraction system. This negative pressure draws airborne dust particles into the hood before they can disperse into the surrounding environment. The captured dust is then transported through ductwork to filtration equipment for removal from the air stream.

Common Materials

Galvanized steel, Stainless steel, Polycarbonate

Technical Parameters

Parameter	Typical range	Notes & selection driver
Airflow Capacity	500–2000 m³/h	Select based on dust generation rate and hood size.
Capture Velocity	0.5–1.5 m/s	Higher for toxic dusts.ACGIH
Filter Efficiency	99.97–99.995 %	HEPA H13–H14.EN 1822
Operating Temperature	-20–60 °C	Seals and filters degrade above 60°C.
Pressure Drop	150–500 Pa	Clean filter; increases with loading.
Noise Level	65–75 dB(A)	At 1 m distance.ISO 3744
Material	304–316L SS	316L for corrosive environments.ASTM A240
Window Thickness	4–6 mm	Polycarbonate or tempered glass.
Weight	50–200 kg	Depends on size and material.
Dimensions (W×D×H)	800×600×1200–2000×1500×2500 mm	Custom sizes available.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Housing Frame Part
Structural framework providing rigidity and mounting points for the hood

Material: Galvanized steel
Observation Window
Transparent panel allowing visual monitoring of enclosed processes

Material: Polycarbonate
Access Door
Sealed entry point for maintenance and process adjustments

Material: Stainless steel
Duct Connection Flange Part
Interface for connecting to extraction ductwork system

Material: Galvanized steel
Hood Enclosure
The panels that form the enclosure itself and hold the negative pressure.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Dust Containment System

View system integration details

Manufacturers of Containment Hood

Manufacturer profiles associated with Containment Hood.

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Frequently Asked Questions

What is the purpose of a containment hood?

A containment hood is designed to capture and contain airborne dust particles at their source, preventing them from dispersing into the workplace atmosphere. It is a component of a dust containment system, typically connected to an extraction system for filtration or disposal.

How do I select the right airflow capacity?

Airflow capacity should be selected based on the dust generation rate and hood size. The reference range is 500–2000 m³/h, but the actual requirement depends on the specific process and the capture velocity needed. Consult the manufacturer for model-specific recommendations.

What materials are available for containment hoods?

Common materials include galvanized steel, stainless steel (grades 304–316L), and polycarbonate. Stainless steel 316L is recommended for corrosive environments. The choice depends on the application's chemical and temperature conditions.

What maintenance is required?

Regular maintenance includes inspecting seals and filters, checking pressure drop (reference 150–500 Pa), and ensuring the extraction system maintains negative pressure. Seals and filters degrade above 60°C, so operating temperature should be monitored. Replace worn components to prevent dust leakage.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric to 0.5 psi differential
flow rate:	Up to 5000 CFM
temperature:	-20°C to +60°C
slurry concentration:	Up to 40% solids by weight

Containment Hood

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards