Diffuser Mounting Frame

Product Specifications

Technical details and manufacturing context for Diffuser Mounting Frame

Definition

The Diffuser Mounting Frame is a structural component used in ceiling plenum systems to provide a secure and stable mounting interface for air diffusers. It is installed within the plenum structure, creating a rigid platform that supports the diffuser and transfers its weight and operational forces to the surrounding building structure. The frame ensures proper alignment of the diffuser for optimal airflow distribution and maintains the integrity of the ceiling assembly while allowing for maintenance access.

This frame is typically fabricated from galvanized steel or aluminum alloy, with material thickness ranging from 1.0 to 2.0 mm (per GB/T 708). It is available in widths from 300 to 1200 mm to match diffuser neck sizes, and heights from 150 to 600 mm to accommodate plenum depth constraints. The frame has a load capacity of 50 to 200 kg, including the weight of the diffuser and ductwork. It is designed for non-condensing environments with an operating temperature range of -20°C to 80°C.

Surface treatment includes hot-dip galvanizing with a coating thickness of 0.05 to 0.10 mm (per ISO 1461), providing corrosion resistance verified by a salt spray test duration of at least 500 hours (per ISO 9227). The frame meets a flatness tolerance of ±1.5 mm (per ISO 13920) to ensure proper sealing. It is made of non-combustible material with a fire rating of A2 (per EN 13501-1). The weight of the frame ranges from 2 to 8 kg per frame, depending on size.

All listed parameters are reference ranges that must be verified for the specific model and application. Standards mentioned are procurement references and do not imply certification or compliance of any particular product. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The frame is installed within the ceiling plenum structure, creating a rigid mounting platform. Air diffusers are then attached to this frame using mechanical fasteners. The frame distributes the weight and operational forces of the diffuser across the plenum structure, preventing stress concentrations and ensuring stable, vibration-free operation while maintaining airtight seals where required.

Common Materials

Galvanized steel, Aluminum alloy

Technical Parameters

Parameter	Typical range	Notes & selection driver
Frame Width	300–1200 mm	Match diffuser neck size
Frame Height	150–600 mm	Plenum depth constraint
Material Thickness	1.0–2.0 mm	Steel or aluminumGB/T 708
Load Capacity	50–200 kg	Includes diffuser and duct weight
Operating Temperature	-20–80 °C	Non-condensing environment
Surface Treatment	0.05–0.10 mm	Hot-dip galvanized coating thicknessISO 1461
Tolerance (Flatness)	±1.5 mm	Ensures proper sealISO 13920
Corrosion Resistance	≥500 h	Salt spray test durationISO 9227
Fire Rating	A2	Non-combustible materialEN 13501-1
Weight	2–8 kg	Per frame, depends on size

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

Main Frame Rails Part
Primary structural members that form the perimeter of the frame

Material: galvanized steel
Cross Braces Part
Internal supports that provide rigidity and prevent frame distortion

Material: galvanized steel
Mounting Flanges Part
Extended edges with pre-drilled holes for securing to plenum structure

Material: galvanized steel
Diffuser Attachment Points Part
Reinforced areas with threaded inserts or pre-drilled holes for diffuser mounting

Material: steel
Gasket Channel Part
Groove or surface for installing sealing gaskets to ensure airtight installation

Material: aluminum

Applied To / Applications

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

Ceiling Plenum

View system integration details

Manufacturers of Diffuser Mounting Frame

Manufacturer profiles associated with Diffuser Mounting Frame.

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Frequently Asked Questions

What materials are available for the Diffuser Mounting Frame?

The frame is available in galvanized steel or aluminum alloy, with material thickness ranging from 1.0 to 2.0 mm per GB/T 708. Confirm the specific material and thickness for your application with the supplier.

What is the load capacity of the frame?

The load capacity is 50 to 200 kg, including the weight of the diffuser and ductwork. This is a reference range; verify the exact capacity for your model and installation conditions.

What standards apply to the frame's surface treatment and corrosion resistance?

The hot-dip galvanized coating thickness is 0.05 to 0.10 mm per ISO 1461, and corrosion resistance is verified by a salt spray test duration of at least 500 hours per ISO 9227. These standards are procurement references; confirm compliance with the supplier.

What is the fire rating of the frame?

The frame is made of non-combustible material with a fire rating of A2 per EN 13501-1. This rating is a reference; verify the actual fire performance with the manufacturer.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 500 Pa static pressure
other spec:	Airflow rate: 50-2000 CFM per diffuser, Max deflection: L/240 under load
temperature:	-20°C to 80°C

Product Specifications

Applied To / Applications

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