Inline Duct Fan, Plastic, HF

Key specification for this inline duct fan: material Plastic, model number HF. Everything below is reproduced from the factory data sheet. Made by NEW HVACR TECHNOLOGY (NINGBO) CO., LTD. (2 years on the platform, typical reply ≤2h). For a binding price and lead time, send the volume you need and where it ships to.

Key Features of This Inline Duct Fan

• Model Number: HF
• Material: Plastic
• Warranty: 1 Year
• Place Of Origin: Zhejiang, China
• Application: Villa, Hotel, Apartment, Hospital, Office Building, School, Mall
• Feature: Easy Install

Technical Specifications

Product Details

DESCRIPTION

HF

Mixed Flow Inline Duct Fan

Definition: The HF series is a high-performance, low-noise mixed-flow inline duct fan. Its designcombines the high airflow capacity of axial fans with the high static pressure characteristics of centrifugal fans, specifically engineered for duct pressure boosting.

PRODUCT DETAIL

Core Materials & Craftsmanship

Casing Options: Available in two premium materials: Metal Version: Features cold-pressed steel and aluminum alloy die-cast housing for a robust structure and modern aesthetic. Plastic Version: Utilizes lightweight, durable, and UV-resistant reinforced plastic, ideal for humid or corrosive environments. Motor Technology: Equipped with a long-life ball bearing motor, offering a service life of up to 50,000 hours. Blade Design: Specially designed mixed-flow blades undergo rigorous dynamic balance testing to ensure smooth operation at high speeds.

Structure & Functional Design

Mixed-Flow Boost Structure: Optimized blade geometry achieves a perfect balance between high airflow and high static pressure. Compact Design: Small footprint (models ranging from HF-75 to HF-300) specifically designed for space-constrained environments like dropped ceilings or narrow ducts.d Thermal Overload Protection: Built-in thermal protection automatically cuts power if temperatures rise abnormally, ensuring operational safety. Dual-Speed Function: Supports high/low speed wiring modes, allowing users to adjust the airflow based on actual requirements.

Product Advantages

Energy Efficiency: Optimized motor efficiency significantly reduces long-term power consumption and operational costs. Ultra-Quiet Operation: Low noise levels ranging from 31-50 dB(A) (excluding HF-300), providing a silent ventilation environment. Easy Installation: Quick-release base design facilitates easy mounting and simplifies maintenance or cleaning. High Adaptability: Full series coverage from 170m/h to 2206m/h meets diverse ventilation needs for various space sizes.

SPECIFICATION

Model	A	B	C	φD	E	F	φG	L	W
HF-100P	80	60	4-φ4.5	97	99	116	163	302	204
HF-125P	80	60	4-φ4.5	123	99	116	163	257	204
HF-150P	80	60	4-φ5.0	147	109	127	187	313	227
HF-200P	100	94	4-φ5.5	197	125	137	205	302	249
HF-250P	150	150	4-φ8*11	247	150	174	261	383	310
HF-315P	181	178	4-φ8*11	312	187	216	325	446	386

Core Applications:

Industrial: Factory smelting, diesel burner/vaporizer support, and boiler equipment. Commercial: Kitchen exhaust, inflatable facility pressurization, and office ventilation. Specialized Industries: Air conveying for plastics processing, chemical engineering, drying equipment, film blowing, printing, and textile machinery. Residential: Air circulation and indoor air quality (IAQ) improvement for houses and apartments.

Installation Precautions

The product is supplied without a plug. It must be wired to a standard power source. Please refer to the manual for High/Low speed wiring configurations. Orientation: Install according to the airflow direction arrow on the casing to ensure correct intake and exhaust. Maintenance Space: Despite its compact design, please reserve sufficient space for disassembly and cleaning of the fan body.

RELATED PRODUCTS

Table 1: Material Comparison (Metal vs. Plastic)

Feature	HF Aluminum/Steel Casing	HF UV‑Resistant Plastic Casing
Core Advantage	High strength, heat resistant, modern style	Lightweight, corrosion‑proof, insulation
Ideal Environment	Industrial smelting, boilers, diesel support	Kitchens, labs, bathrooms, humid areas
Durability	Extreme impact resistance	Excellent UV resistance, rust‑proof
Weight	Slightly heavier, suited for fixed brackets	Ultra‑light, suited for ceilings/simple ducts

Table 2: HF Series vs. Traditional Fans

Comparison Metric	HF Mixed‑Flow Fan	Traditional Axial Fan	Traditional Centrifugal Fan
Pressure Performance	Mid‑High Stable pressure via mixed‑flow tech	Low: Struggles with long duct resistance	Very High: Suitable for extremely long distances
Noise Level	Ultra‑Low (31‑50 dB): Optimized blades	Medium: High vibration at high speeds	High: High air friction noise
Ease of Installation	Very Easy: Compact, inline design	Difficult: Requires wall/bracket mounting	Difficult: Bulky, requires large space
Efficiency/Energy	High: Long‑life ball bearing motor	Average	Lower: High starting current
Maintenance Cost	Low: Quick‑release design	Medium	High: Complex disassembly

Industry Standards & Certifications

Safety Standards: Compliant with international electrical safety requirements. Potential Certifications: The series typically follows CE, RoHS, and UL related standards, ensuring market access and safety in Europe, North America, and Southeast Asia.

FAQ

Fan fails to start: Check if the wiring is loose or if the thermal protection has been triggered due to overheating. Allow the motor to cool down before restarting. Increased noise: Inspect the duct for foreign objects hitting the blades, or check if the mounting bracket screws are loose and causing resonance. Reduced airflow: Check the intake filters or the duct for dust buildup or blockages. Periodic cleaning is recommended.

Q1: Does this fan support speed control? How to switch between high and low speed? A: Yes. The HF series uses a dual-speed motor, and high or low speed can be selected by connecting to different terminals inside the junction box. For continuous speed control, an external electronic speed controller can be added.

Q2: Why doesn't the product come with a power plug? Is it easy to install? A: To accommodate different plug standards in various regions worldwide and to meet more specialized industrial/commercial wiring requirements, this product is designed with pre-wired terminals and does not include a standard plug. Installation is very simple The base is designed for quick disassembly, allowing you to first fix the base to the wall or ceiling, then snap the fan body into place and connect the wires.

Q3: Is the noise level of the HF fan high during operation? Is it suitable for installation in a bedroom ceiling? A: It is very quiet. The noise level of medium and small models is only 31-40 dB(A) (equivalent to indoor quiet conversation), making it very suitable for high-silence environments such as bedrooms and offices, large models have strong power and are recommended to be installed inside the ceiling.

Q4: Can the fan run continuously 24 hours a day? What is its lifespan? A: Yes. The HF fan is equipped with a long-life high-performance ball bearing motor and has a thermal overload protection device, supporting continuous 24/7 operation. Its designed lifespan can reach up to 50,000 hours. If the environmental temperature is too high and triggers the thermal protection, the motor will automatically shut off and resume operation after cooling down, ensuring safety.

Q5: Which is better, the plastic housing version or the metal housing version? How to choose? A: It depends on your usage scenario: Plastic housing version: Made of UV-resistant reinforced engineering plastic, it is extremely lightweight and rust-proof, suitable for moisture-proof and rust-free applications, best for humid/acidic environments such as bathrooms, kitchens, or laboratories. Metal housing version: Made of aluminum alloy die casting and steel, it offers higher structural strength and stronger heat resistance, suitable for high-strength and high-temperature applications, best for industrial workshops, boiler, and other high-intensity work environments.

Q6: Is it difficult to clean or maintain? A: Not at all. The Quick-release base allows you to snap the fan body out for cleaning without removing the connected ducting, saving significant maintenance time.

Ordering and Pricing

• Minimum order quantity: 100 piece
• Volume pricing:
  • 100–199 piece: US $94 / piece
  • 200+ piece: US $29 / piece
• Ships from: China
• Customization: OEM and ODM accepted on qualifying volumes.

Frequently Asked Questions

What is the minimum order quantity for this inline duct fan?

The standard minimum order quantity is 100 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.

What warranty is provided?

The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.

Do you accept OEM or custom branding?

Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.

How long does production and delivery take?

In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.

About the Manufacturer

This product is produced by NEW HVACR TECHNOLOGY (NINGBO) CO., LTD., based in China. The company 2 years as a verified Alibaba.com supplier, Trading Company. Browse the full NEW HVACR TECHNOLOGY (NINGBO) CO., LTD. range on HVACR Nexus.

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