Plenum Chamber for HVAC Air Distribution

Product Specifications

Technical details and manufacturing context for Plenum Chamber

Definition

A plenum chamber is a component used in air distribution systems, specifically within Air Distribution Plenum & Nozzles setups. It functions as an air distribution box that receives conditioned air from the main ductwork. The chamber's internal volume allows the air velocity to decrease, converting velocity pressure into static pressure. This pressure equalization creates a uniform pressure field inside the chamber, enabling even distribution of air to multiple outlet nozzles or diffusers, regardless of their position or downstream resistance differences. This design reduces turbulence and noise while ensuring consistent airflow delivery throughout the system. Plenum chambers are typically fabricated from galvanized steel, stainless steel, or aluminum. Common parameters include an operating pressure range of 1.0–1.6 MPa, airflow capacity from 500 to 5000 m³/h, pressure drop between 50 and 200 Pa, operating temperature from -20 to 80 °C, and noise levels from 35 to 60 dB(A) (per ISO 3744). Material options include Q235B steel (per GB/T 700) with galvanized or stainless finishes, and surface treatment can be galvanized (per GB/T 2518) with optional powder coating. Wall thickness ranges from 0.8 to 2.0 mm, dimensions from 300 to 2000 mm (L×W×H), and weight from 10 to 500 kg. These values are reference ranges and must be verified for the specific model and application. When selecting a plenum chamber, consider system airflow demand, duct static pressure, space constraints, and material compatibility. Verify model-specific parameters and standards with the legal manufacturer or supplier before procurement. Regular inspection for corrosion, air leaks, and pressure differentials is recommended to maintain performance.

Working Principle

Air enters the plenum chamber from the main supply duct. The chamber's volume allows air velocity to decrease, converting velocity pressure to static pressure. This pressure equalization creates a uniform pressure field within the chamber, enabling even distribution of air to multiple outlet points regardless of their position or resistance differences in downstream ductwork.

Common Materials

Galvanized steel, Stainless steel, Aluminum

Technical Parameters

Parameter	Typical range	Notes & selection driver
Airflow Capacity	500–5000 m³/h	Select based on system demand
Pressure Drop	50–200 Pa	Lower is more energy efficient
Operating Temperature	-20–80 °C	Beyond range may affect sealing
Noise Level	35–60 dB(A)	Depends on airflow and insulationISO 3744
Material	Q235B	Galvanized or stainless availableGB/T 700
Wall Thickness	0.8–2.0 mm	Thicker for higher pressure
Dimensions (L×W×H)	300–2000 mm	Custom sizes available
Weight	10–500 kg	Depends on size and material
Surface Treatment	Galvanized	Powder coating optionalGB/T 2518

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

Chamber Body
The chamber shell itself: encloses the process volume and carries the operating pressure and temperature.
Access Panel Part
Provides maintenance access to interior of chamber

Material: steel
Mounting Brackets Part
Secures chamber to supporting structure

Material: steel
Gasket Seals Part
Ensures airtight connections at inlet and outlets

Material: rubber

Applied To / Applications

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

Air Distribution Plenum & Nozzles

View system integration details

Ductwork and Plenum

View system integration details

Manufacturers of Plenum Chamber

Manufacturer profiles associated with Plenum Chamber.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Frequently Asked Questions

What is the primary function of a plenum chamber?

A plenum chamber equalizes air pressure and distributes airflow evenly to multiple outlets in an HVAC system. It receives conditioned air from the main duct, reduces velocity, and converts velocity pressure to static pressure, ensuring uniform distribution.

What materials are commonly used for plenum chambers?

Common materials include galvanized steel, stainless steel, and aluminum. The choice depends on environmental conditions, corrosion resistance, and cost. Verify material grade and suitability with the supplier.

What parameters should be considered when selecting a plenum chamber?

Key parameters include operating pressure, airflow capacity, pressure drop, operating temperature, noise level, material, wall thickness, dimensions, weight, and surface treatment. These values must be confirmed for the specific application.

How do I verify that a plenum chamber meets my system requirements?

Check the manufacturer's datasheet for model-specific values and compare them with your system's design conditions. Ensure compliance with relevant standards such as ISO 3744 for noise measurement. Always confirm with the legal manufacturer or supplier.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 2.5 bar (36 psi)
flow rate:	100-10,000 CFM
temperature:	-20°C to 120°C
slurry concentration:	Not applicable (air/gas only)

Plenum Chamber

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards