Linear Slot Diffuser – Round Spigot Top Plenum

Round spigot top plenum for flexible ducting connections to linear slot diffusers in exposed ceiling installations. Air diffuser supplied by Tawreed Trading & Contracting across Qatar.

Air Outlets · AOT-017

Linear Slot Diffuser – Round Spigot Top Plenum

Aluminium Construction
Flexible Ducting
LSD Accessory

Top round spigot connection for easy connection to flexible circular ducting
Ideal for exposed ceiling installations where round ductwork is used above
Made of high-quality aluminium for durability and corrosion resistance
Plenum box: un-lined, internally insulated or externally insulated
Easy to install with CLSD linear slot diffuser series
Available in standard module lengths to match LSD configurations

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Overview

The round spigot top plenum sits behind a linear slot diffuser and has a round spigot on top for a direct connection to flexible circular duct. It suits exposed ceiling installations where round ductwork runs above. It is made of aluminium, delivers air evenly to the diffuser face with minimal pressure loss, is easy to install with the CLSD linear slot diffuser series, and comes in standard module lengths that match the linear slot diffuser configurations.

Technical specifications

Specification	Detail
Product code	AOT-017
Category	Air Outlets
Plenum box	un-lined, internally insulated or externally insulated
Standards and marks	Aluminium Construction, Flexible Ducting, LSD Accessory

Source: product specifications on this page; datasheet values from the Linear Slot Diffuser – Supply & Return datasheet.

Applications

Flexible duct connections

Top round spigot for flexible circular duct.

Exposed ceilings

Where round ductwork runs above the diffuser.

Continuous slot runs

Module lengths that match LSD configurations.

Related accessories

Datasheet

Download the Linear Slot Diffuser – Supply & Return datasheet (PDF). It covers: Supply and return construction; slot dimensions (16 / 20 mm); mitered corners; air-flow data tables 3.1 – 3.6.

Datasheet specifications

Linear slot diffuser

Item	Value
Frame and blades	Extruded aluminium; frame width 34 mm standard (20 mm available on return)
Slots	1 to 8; slot width 20 mm standard, 16 and 25 mm optional
Length	Up to 5.8 m in a single piece; alignment strips for continuous runs
Damper	Hit-and-miss, adjustable from the face (also acts as equalizing grid); return: without damper as standard
Air pattern	Deflection blades adjustable vertical / horizontal without changing flow
Mitred corners	90° horizontal standard; variable 90–180°; vertical inside and outside corners
Fixing	C-clamp
Plenum box	Un-lined, internally insulated or externally insulated
Finishes	Natural aluminium mill; powder coat to RAL

Air-flow tables 3.1–3.6 (16 and 20 mm supply, return, per metre, damper fully open): see the datasheet.

Source: linear slot diffuser datasheet, construction, slot dimensions and mitred corners.

Downloads

Linear Slot Diffuser – Supply & Return — PDF · 14 pages · 3.6 MB

Download

Frequently asked questions

Is there a minimum order quantity for Linear Slot Diffuser – Round Spigot Top Plenum?

No. We supply any quantity, from a single fitting to a full project.

How is delivery arranged for Linear Slot Diffuser – Round Spigot Top Plenum?

Delivery terms are confirmed with your quotation.

How fast will I get a quotation for Linear Slot Diffuser – Round Spigot Top Plenum?

Send your BOQ or product list through the quote form or WhatsApp (+974 7097 0111) and our technical team replies with a formal quotation within 4 business hours.

Which plenum box options are available?

Un-lined, internally insulated or externally insulated.