The Weltech High-Performance Plastic Inline Duct Fan Series is engineered for high static pressure, whisper-quiet operation, and energy efficiency. Certified to ETL / UL 507 standards for the North American market, this mixed-flow series features flame-retardant PP/ABS housing, premium dual ball bearings, and optional variable speed controllers—delivering an ideal OEM ventilation solution for indoor grow tents, hydroponics, commercial HVAC boosting, and moisture/odor extraction.
Key Features
North American Safety Compliance: Fully ETL / cETL Listed (conforming to UL Std. 507 & CSA C22.2 No. 113) for commercial and residential applications across the US and Canada.
Aerodynamic Mixed-Flow Impeller: Combines the high air volume of axial fans with the high static pressure of centrifugal blowers, maintaining consistent airflow through carbon filters and extended duct runs.
Durable & Lightweight Housing: Precision-molded from UV-resistant, flame-retardant polypropylene (PP) / ABS, fully rust-proof and corrosion-resistant in high-humidity grow room environments.
Detachable Motor Assembly: Quick-release clamping bracket design allows easy removal of the motor and impeller for routine maintenance without dismantling ductwork.
Long-Life Dual Ball Bearings: Premium sealed dual ball bearings rated for over 50,000 hours of continuous, all-angle operation (horizontal or vertical mounting).
Versatile Speed Control: Compatible with standard 2-speed manual switches, variable rotary speed controllers, and 0–10V / PWM digital smart climate controllers.
Model
Duct Size
Voltage / Frequency
Rated Power
Airflow
Static Pressure
Speed
Noise Level
WT-PF-100
4″ (100 mm)
110–120V / 220–240V, 50/60Hz
35 W
195 CFM (330 m³/h)
280 Pa
2,500 RPM
30 dB(A)
WT-PF-150
6″ (150 mm)
110–120V / 220–240V, 50/60Hz
60 W
390 CFM (660 m³/h)
350 Pa
2,450 RPM
33 dB(A)
WT-PF-200
8″ (200 mm)
110–120V / 220–240V, 50/60Hz
130 W
805 CFM (1,360 m³/h)
520 Pa
2,400 RPM
39 dB(A)
WT-PF-250
10″ (250 mm)
110–120V / 220–240V, 50/60Hz
180 W
1,060 CFM (1,800 m³/h)
650 Pa
2,350 RPM
45 dB(A)
WT-PF-315
12″ (315 mm)
110–120V / 220–240V, 50/60Hz
230 W
1,450 CFM (2,460 m³/h)
720 Pa
2,250 RPM
48 dB(A)
General Engineering Specifications
Ingress Protection Rating: IP44 (Moisture and dust splash resistant)
Operating Temperature Range: -20°C to 60°C (-4°F to 140°F)
Motor Protection: Built-in auto-reset thermal overload protector
Power Cord: 6 ft (1.8 m) pre-wired with standard US 3-Prong (NEMA 5-15P), EU, UK, or AU plug
Applications
Hydroponics & Indoor Cultivation: Exhausting heat from grow lights and driving airflow through activated carbon filters in grow tents and indoor commercial facilities.
Commercial & Residential HVAC Boost: Enhancing airflow efficiency in long or multi-bend duct runs, attics, and sub-floor spaces.
High-Humidity Air Extraction: Moisture and odor removal for bathrooms, commercial kitchens, laundries, and drying rooms.
Equipment & Server Cooling: Quiet, continuous air exchange for server racks, AV cabinets, and industrial enclosures.
OEM / ODM Customization & Commercial Terms
Custom Branding: Silk-screen logo printing, custom rating plates, and retail/master carton packaging.
Control Options: Stepless rotary controller, wireless remote, or 0–10V / PWM / Smart App sensor integration.
Housing Colors: Standard White, Industrial Black, or Custom Pantone colors.
