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HF-250 oblique-flow pressurized inline duct fan product image
HF-250 overall dimensions drawing
Illustrative HF-250 inline duct installation
  1. HF-250 oblique-flow pressurized inline duct fan product image
  2. HF-250 overall dimensions drawing
  3. Illustrative HF-250 inline duct installation

HF-250 Oblique-Flow Pressurized Duct Fan | 1405 m³/h Inline Booster

For 250 mm duct routes that need a stronger inline booster than HF-200 while retaining a smaller airflow step than HF-315

AIRFLOW
1,405 m3/h
POWER SUPPLY
220 V
OPERATING OPTIONS
Single or dual speed
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Quick fit

HF-250 Inline Duct Booster

For 250 mm duct runs that need additional airflow and pressure support between the HF-200 and HF-315 airflow classes.

Airflow
1,405 m3/h
Use
Inline duct boosting
Check first
Duct resistance and speed option

Key Features

  • 250 mm duct fit: mid-range inline boosting for routes that need more support than HF-200.
  • Single or dual speed: choose one operating point or two project-duty settings.
  • HF series position: step up before the larger HF-315 airflow class.

HF-250 Technical Parameters

Match airflow, static pressure, voltage and dimensions to the planned duct route.

Operating modes: compare the single-speed and dual-speed rows separately before final selection.

HF-250 Oblique-Flow Pressurized Duct Fan | 1405 m³/h Inline Booster technical and selection table
Model Type Power (W) Air Volume (m³/h) Noise (dB) Speed (r/min) Voltage (V) Current (A) Static Pressure (Pa) Size (mm)
HF-250 Single-speed 255 1405 66 2450 220 1.2 488 L385×W300×H1080
HF-250 Dual-speed 255/165 1405/1064 66/58 2450/1850 220 1.2/0.75 488/371 L385×W300×H1080

How to read the HF-250 table

  • Single-speed: Use the 1,405 m3/h and 488 Pa row when the project needs one fixed operating point.
  • Dual-speed: Use the 1,405 / 1,064 m3/h and 488 / 371 Pa row when the project needs two planned operating points from one fan.
  • For quote review: Match the selected row to duct diameter, route length, elbows, filters and available 220 V supply.

Applications

Use HF-250 for 250 mm inline duct systems in residential, light-commercial or equipment-room ventilation where route resistance calls for stronger booster support.

Installation and Project Selection

Review the documented installation information first. Use the project selection points below for configuration review.

Installation context: Use the HF-250 dimension drawing as a product reference. Confirm project-specific mounting, wiring and duct design with a qualified installer.

Installation essentials

  • Install in the correct airflow direction and leave service access for maintenance.
  • Use flexible connectors or vibration pads where structure-borne noise is a concern.
  • Keep transitions smooth; abrupt reductions increase pressure loss and noise.
  • Confirm 250 mm duct compatibility and check reducers before installation.
  • Confirm 220 V supply, motor protection and grounding with a qualified installer.

HF-250 selection check

Compare the 1,405 m3/h single-speed row and the 1,405/1,064 m3/h dual-speed row against the required airflow and estimated static pressure. Account for duct length, elbows, filters, grilles, dampers and silencers before final selection.

Fit check: Do not select by 250 mm duct diameter alone. Confirm the chosen speed against the real duct resistance and installation space.

Installation Drawing and Dimensions

HF-250 installation drawing and dimensions

Product Documents

TECHNICAL REVIEW

HF-250 technical information

Review the HF-250 parameter table and installation drawing before final model confirmation.

Request HF-250 document check

PROJECT CHECK

Applicable documents

No model-specific certificate download is provided. Request applicable documents for the project.

Request document check

Related Product Options

If HF-250 is not the exact fit, compare it with nearby or alternative inline fan products.

HF-200 Oblique-Flow Pressurized Duct FanLower airflow step for 200 mm inline booster routes.
HF-315 Oblique-Flow Duct FanHigher airflow step when the project moves beyond the HF-250 route.
HF-150 Oblique-Flow Pressurized Duct FanSmaller duct size for compact ventilation runs.
Mixed Flow Inline FanCompare for general ducted air movement and inline installation.

Core Engineering Features

HF-250 Inline Duct Booster set against the published values on this page. Every point below is taken from this model’s own data.

TypeSingle-speed
Power (W)255
Air Volume (m³/h)1405
Noise (dB)66
Speed (r/min)2450
Voltage (V)220

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: Type Single-speed, Power (W) 255. 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 (Type Single-speed, Power (W) 255), 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.

Documents & Compliance

Download the HF-250 pressurized duct fan datasheet (PDF) used for the technical values on this page.

Confirm the exact model and current documentation before quotation or project documentation.

View all certifications and compliance documents by product scope

Frequently Asked Questions

What makes HF-250 different from HF-200?

Choose HF-250 when HF-200 is too small but the job does not yet require the larger HF-315 airflow class.

Does HF-250 include a dual-speed option?

Yes. Use the single-speed row for fixed-duty selection and the dual-speed row when the project needs two operating points from one model.

Where does HF-250 fit in the HF series?

Choose HF-250 when the job needs the mid-range step between HF-200 and HF-315 for stronger duct boosting without moving to the largest HF airflow class.

Can HF-250 be selected by 250 mm duct diameter alone?

No. Confirm the selected single-speed or dual-speed row against the actual duct route, resistance, installation space and 220 V supply for quote review.

When should I request the dual-speed HF-250 option?

Request the dual-speed option when the project needs two planned airflow and pressure operating points. Use the table rows to compare 1,405 / 1,064 m3/h and 488 / 371 Pa before final model confirmation.

Product inquiry

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

Review HF-250 documents
Review HF-250 technical selection
Add HF-250 to quote