Inline duct fan — 220 V, type Centrifugal Fan. The complete factory specification follows. Made by Ningbo Biote Mechanical Electrical Co., Ltd. (9 years on the platform, factory-assessed). Quantity and destination market determine the final price — tell us both for a firm quote.
Key Features of This Inline Duct Fan
- Voltage: 220 V
- Blade Material: /
- Warranty: Other
- Place Of Origin: Zhejiang, China
- Electric Current Type: /
- Type: Centrifugal Fan
Technical Specifications
| Mounting | Duct Fan |
|---|---|
| Voltage | 220 V |
| Blade Material | / |
| Electric Current Type | / |
| Warranty | Other |
| After-Sales Service Provided | Video Technical Support |
| Customized Support | OEM, ODM |
| Place Of Origin | Zhejiang, China |
| Brand Name | Bitoe |
| Product Name | Duct Exhaust Fan |
| Type | Centrifugal Fan |
| Selling Units | Single item |
| Single Package Size | 75X35X50 cm |
| Single Gross Weight | 16.0 kg |
Product Details


Model (Inch) | SL-75 (3") | Power | 35 w |
Air flow | 2.5 m³/min | Noise | ≤45 dB(A) |
Voltage | 220 V | Pressure | 111 PA |
Frequency | 50 Hz | Caliber | 70(±2) mm |
















Model Inch | Air flow (m³/min) | Voltage (V) | Frequency (Hz) | Power (w) | Noise dB (A) | Pressure (PA) | Caliber (mm) |
SL-75 3" | 2.5 | 220 | 50 | 35 | ≤45 | 111 | 70(±2) |
SL-100 4" | 2.5 | 220 | 50 | 35 | ≤45 | 111 | 70(±2) |
SL-100-1 4"+ | 5.0 | 220 | 50 | 35 | ≤50 | 182 | 95(±2) |
SL-125 5" | 5.0 | 220 | 50 | 50 | ≤50 | 182 | 115(±2) |
SL-150 6" | 7.0 | 220 | 50 | 75 | ≤60 | 264 | 145(±2) |
SL-200 8" | 13.0 | 220 | 50 | 160 | ≤69 | 343 | 195(±2) |
SL-250 10" | 24.2 | 220 | 50 | 225 | ≤75 | 488 | 245(±2) |
SL-315 12" | 49.0 | 220 | 50 | 320 | ≤80 | 630 | 320(±2) |








Model (Inch) | SL-75 (3") | Power | 35 w |
Air flow | 2.5 m³/min | Noise | ≤45 dB(A) |
Voltage | 220 V | Pressure | 111 PA |
Frequency | 50 Hz | Caliber | 70(±2) mm |
















Model Inch | Air flow (m³/min) | Voltage (V) | Frequency (Hz) | Power (w) | Noise dB (A) | Pressure (PA) | Caliber (mm) |
SL-75 3" | 2.5 | 220 | 50 | 35 | ≤45 | 111 | 70(±2) |
SL-100 4" | 2.5 | 220 | 50 | 35 | ≤45 | 111 | 70(±2) |
SL-100-1 4"+ | 5.0 | 220 | 50 | 35 | ≤50 | 182 | 95(±2) |
SL-125 5" | 5.0 | 220 | 50 | 50 | ≤50 | 182 | 115(±2) |
SL-150 6" | 7.0 | 220 | 50 | 75 | ≤60 | 264 | 145(±2) |
SL-200 8" | 13.0 | 220 | 50 | 160 | ≤69 | 343 | 195(±2) |
SL-250 10" | 24.2 | 220 | 50 | 225 | ≤75 | 488 | 245(±2) |
SL-315 12" | 49.0 | 220 | 50 | 320 | ≤80 | 630 | 320(±2) |






Ordering and Pricing
- Minimum order quantity: 50 set
- Volume pricing:
- 50–499 set: US $10.8 / set
- 500–999 set: US $9.8 / set
- 1000+ set: US $9.2 / set
- 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 50 set. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a Other warranty. Spare parts and technical support remain available after the warranty period.
Can the inline duct fan be supplied for my local voltage?
The standard configuration is 220 V. Alternative voltage and frequency builds are available when specified at the time of order.
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 Ningbo Biote Mechanical Electrical Co., Ltd., based in China. The company 9 years as a verified Alibaba.com supplier, Trading Company, passed third-party supplier assessment. Browse the full Ningbo Biote Mechanical Electrical Co., Ltd. range on HVACR Nexus.
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