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Super Quiet Centrifugal Duct Fan | Low-Noise Fresh Air Ventilation

Super Quiet Centrifugal Duct Fan for ultra-low-noise fresh air duct ventilation in noise-critical residential spaces

IDONEITÀ AL PROGETTO
Super Quiet Centrifugal Duct Fan for ultra-low-noise fresh air duct ventilation in noise-critical residential spaces
RANGE DI PRESTAZIONI
Single model · super quiet operation · centrifugal duct design · low-noise fresh air
Aggiungi al preventivo
Inline duct / booster ventilationConfirm airflow and duct resistanceUse model table before selection
Product overview

Super Quiet Centrifugal Duct Fan Selection Overview

Super Quiet Centrifugal Duct Fan is organized here for fast project screening. Confirm duct route, airflow target, installation constraints and model-specific datasheet details before final selection.

Use case
Ducted ventilation and air movement projects.
Selection factor
Match airflow, duct resistance and installation space.
Buyer value
Send route details so the model can be checked correctly.

Core Engineering Features

Super Quiet Centrifugal Duct Fan Selection Overview set against the published values on this page. Every point below is taken from this model’s own data.

Potenza (W)36/30
Air Volume (m³/h)180/144
Pressione statica (Pa)160/143
Rumorosità dB(A)23/21
Size (cm)45×34×23
Applicable Area (m²)7~12

Quality Assurance & Warranty

Fan orders are checked at the factory before shipping, because published airflow and pressure only hold if the delivered unit matches its table row.

Applied to this model: Power (W) 36/30, Air Volume (m³/h) 180/144. These checks are run against that specification before the unit ships.

Airflow and pressure checkChecks cover motor start-up, impeller balance, airflow and static pressure verification, noise review and model-to-table parameter matching.
Documented complianceCE, RoHS and related files cover the listed fan families; see the documents section below.
Warranty supportWarranty for fan orders is confirmed with the quotation for your destination market.
Service parts for fansImpellers, motor capacitors, mounting brackets and common service items.

OEM/ODM & Supply Options

For distributors and contractors working on ventilation projects, the supply side adapts to your market instead of one fixed fan build.

For this model (Power (W) 36/30, Air Volume (m³/h) 180/144), the OEM route can start from that base specification rather than a blank sheet.

OEM/ODMBadging, packaging and control options for fan orders, including branded cartons and manual inserts.
Airflow and pressure variantsModel selection, motor power and voltage options are reviewed against your duct calculation.
Voltage & plug optionsVoltage and plug configuration for this product line can be reviewed during quotation.
Documentation & bulk supplyCatalogues, technical sheets, available certificates, volume pricing and distributor programs for this product line.
Order quantity & lead timeMinimum order quantity, sampling and production lead time are confirmed per model and order volume — see the B2B supply page for how sourcing enquiries are handled.

Documenti & conformità

Download the silent inline duct fan datasheet used for the technical values on this page, and review the relevant compliance documents.

Confirm the exact model, destination-market requirements and current documentation before quotation or project documentation.

View all certifications and compliance documents by product scope




Compare the published performance values with duct resistance and installation space, then confirm the final model details for the project.

Technical Parameter

Super Quiet Centrifugal Duct Fan | Low-Noise Fresh Air Ventilation technical and selection table
Modello Potenza (W) Air Volume (m³/h) Pressione statica (Pa) Rumorosità dB(A) Size (cm) Applicable Area (m²)
LG100D-12DP 36/30 180/144 160/143 23/21 45×34×23 7~12
LG100D-2P 91/80 400/300 250/230 47/37 45×34×23 10~12
LG150D-15DP 47/37 360/300 132/119 29/26 53×43×31 12~22
LG150D-18DP 72/50 500/400 167/145 30/27 53×43×31 22~28
LG200D-19DP 155/120 770/820 200/190 33/29 65×47×36 28~35
LG200D-20DP 171/150 920/720 240/222 36/30 65×47×36 35~40
LG200D-23DP 255/180 1200/900 360/341 41/35 65×47×36 40~50
LG200D-24DP 320/280 1500/1280 380/350 42/37 65×47×36 50~60
LG250D-25DP 350/245 1700/1380 420/390 43/39 77×57×41 60~70
LG250D-28DP 400/330 1900/1500 430/390 48/41 77×57×41 70~80
LG250D-30DP 500/390 2100/1800 450/410 52/45 77×57×41 80~90
LG250D-35DP 550/430 2300/1980 480/425 56/47 77×57×41 90~100

Sound levels by model (published data)

Searching for a low noise ducted fan usually means the sound figure matters more than the airflow figure. The published Noise dB(A) column in the model table above gives the direct comparison, and each model lists two speeds because the low setting is where the quiet numbers appear.

  • Quietest options — LG100D-12DP is published at 23/21 dB(A) and LG150D-15DP at 29/26 dB(A). Choose these where the duct passes close to occupied space.
  • Mid range — LG150D-18DP at 30/27 dB(A) and LG200D-19DP at 33/29 dB(A) trade a little more sound for noticeably more airflow.
  • Higher airflow — LG200D-20DP at 36/30 dB(A) and LG200D-23DP at 41/35 dB(A) move 920 and 1,200 m³/h, so the sound figure rises with duty.
  • Largest models — LG200D-24DP at 42/37 dB(A) and LG250D-25DP at 43/39 dB(A) are for the biggest duct runs, where the fan is normally remote from the listening area.

Read the table by duty, not by model number. Because every row carries a high and a low figure, switching to the low speed is the single most effective way to cut sound without changing the fan. Where the required airflow still leaves two candidates, choose the one whose low-speed figure is lower — that is the quieter installation in practice.

If duct-borne sound is the main concern, also review the silent mixed flow inline duct fan and the inline duct fan selection hub before fixing the model.

Super Quiet Centrifugal Duct Fan Selection Notes

Use this page to compare centrifugal duct fan options for fresh-air supply, ducted ventilation and air movement. Review the linked inline and centrifugal alternatives when the duct layout or required performance differs.

Related Linggong products and guides

Quiet centrifugal fan, silent centrifugal fan — what the numbers say

A quiet centrifugal fan is judged on one published figure: the sound level at the duty point. This series lists Noise dB(A) per model and per operating gear in the table above, so the quietest option can be read off directly rather than inferred from the fan type.

Two things make a centrifugal duct fan quieter in practice. The first is the model itself. The second is the speed it runs at, because every model in the table carries a high and a low figure — the low gear is where the quiet numbers appear.

The quietest models in this series

  • LG100D-12DP — 23/21 dB(A) at 180/144 m³/h. The quietest unit in the range, for small rooms where the duct passes close to occupied space.
  • LG150D-15DP — 29/26 dB(A) at 360/300 m³/h. Still quiet, with roughly double the airflow.
  • LG150D-18DP — 30/27 dB(A) at 500/400 m³/h. The point where useful airflow starts to matter more than the last few decibels.

Note that quieter is not simply “smaller”. The LG100D-2P sits lower in the range than the LG150D-15DP by airflow, yet it is published at 47/37 dB(A) — louder than the larger LG150D-15DP at 29/26 dB(A). This is why a silent centrifugal fan cannot be chosen by model number alone; the published sound figure has to be read per model.

Where the sound level rises

From LG200D-19DP at 33/29 dB(A) up to LG250D-25DP at 43/39 dB(A), the sound figure climbs with the airflow the unit is built to move. These models are intended for larger duct runs — commercial kitchens, workshops and plant rooms — where the fan is normally sited away from the people who hear it. Where it is not, duct-borne sound matters as much as the fan’s own figure, and the duct route should be reviewed alongside the model choice.

Read the table by duty, not by name

Where the requirement is a quiet centrifugal fan rather than maximum airflow, work in this order: fix the airflow the room needs, check which models meet it, then choose the one with the lower published low-speed figure. Switching a unit to its low gear is the single most effective way to cut sound without changing the fan, which is why every model in the table lists both figures.

If the duct run needs less pressure than a centrifugal fan provides, the silent mixed flow inline duct fan covers the same quiet requirement in a shorter body. For comparison across formats, see the inline duct fan selection hub.

Frequently Asked Questions

How quiet is a low noise ducted fan in this series?

Published sound levels run from 23/21 dB(A) on the LG100D-12DP up to 43/39 dB(A) on the LG250D-25DP. Each model lists a high and a low figure, so the quietest option that still meets the required airflow is normally the right choice.

What is a super quiet centrifugal duct fan used for?

It is used for fresh air supply, ducted ventilation and low-noise air movement where a higher-pressure fan is required.

What should I compare in the specification table?

Compare airflow, static pressure, noise level, size and applicable area to match the fan to the room and duct resistance.

When should I choose a mixed-flow fan instead?

Choose a mixed-flow fan when the project needs inline duct installation with a balance of airflow distance, pressure and compact structure.

Product inquiry

Confirm the published specifications, then add this product to your quote list.