
Multifan
Multifan, a premium brand under the Dutch family-owned Vostermans Ventilation founded in 1952, produced its very first fan in 1958. Initially serving the local market, the brand rapidly went global, and today exports high-quality ventilation systems to more than 75 countries worldwide.
Multifan’s core strength lies in its entirely in-house R&D and highly automated production, managing everything from aluminum casting to proprietary motor lines. The brand heavily dominates the global agricultural and industrial sectors, standing out as a deeply trusted leader in livestock housing (poultry, swine, dairy) and greenhouse climate control.
Its flagship products include high-efficiency axial fans, fiberglass cone fans, and the innovative vertical V-FloFan, easily recognized by their signature durable plastic blades. Equipped with advanced ECplus and Vplus energy-saving technologies, Multifan products offer unmatched operational reliability, IP55 corrosion resistance, and exceptional longevity under the harshest environmental conditions.
Brand
Motor Warranty
- 3-year warranty on the motor
- 3-year guarantee on the motor.
- 3-year warranty on Multifan motors.
- 3-year warranty on the motor.
- Comes with a standard 3-year warranty on the fan.
- Comes with a standard 3-year warranty.
- Features a 3-year warranty on the fan.
- Features a standard 3-year
- Offers a standard 3-year warranty on the motor and fan components.
Motor Protection Rating
- IP55 motor (Water and dust resistant design)
- Features a water and dust resistant fan motor rated at IP55.
- Features a water and dust resistant motor rated at IP55.
- Features an IP55 motor which is water and dust resistant, equipped with Class 'F' insulation, and engineered for continuous operation in extreme environments.
- Features an IP55 rating
- IP55 (Water and dust resistant design)
- IP55 motor, which is water-resistant and dust-resistant.
- IP55 or IP65 motor, which is water and dust resistant.
- IP55 rating, which is water and dust resistant.
- Rated IP55 for outdoor or wash-down duty.
Energy Efficiency / SFP
- The Specific Fan Power at 0 Pa ($SFP_{0Pa}$) is detailed in the technical data table
- Energy efficiency performance at 0" SP ranges from 14.4 to 18.0 cfm/watt for single-phase models , and from 15.7 to 19.2 cfm/watt for three-phase models.
- Measured as energy efficiency performance (cfm/watt @ 0" SP), which ranges from 5.3 cfm/watt
- Specific Fan Power at 0 Pa ranges from 29.6 to 48.0 W/1000m3/h for single-phase models, and from 31.8 to 77.1 W/1000m3/h for three-phase models.
- Available in high energy-efficient IE2, IE3, and IE4 fan motors. 50" and 54" models optionally feature Vplus technology for maximized energy savings.
- Energy-efficient: 17.2 Watts per 1,000 m³/h (SFP @ 0Pa range: 17.2 - 22.1 W/1,000 m³/h depending on the model)
- High efficiency: up to 22.4 Watt / 1,000 m³/h (SFP @ 0Pa range: 22.4 - 63.6 W/1,000 m³/h depending on model size and configuration)
- Highly energy efficient in its class , reaching up to 23.1 CFM/W. The Specific Fan Power (SFP @0Pa) ranges from 10.7 to 23.1 CFM/W depending on the model.
- Features energy-efficient designs with optional Vplus and ECplus technologies utilizing permanent magnet motors. It achieves an efficiency performance of up to 28.5 cfm/watt at 80% RPM.
- Features energy-efficient designs with optional ECplus and Vplus technologies using permanent magnet motors to deliver significant energy savings. Additionally, when using a frequency controller, the fan's energy consumption is halved for every 20% reduction in speed
- Specific efficiency ratings or SFP values are not explicitly provided in the document. The power consumption is listed as 280 W for the 16" model and 460 W for the 20" model.
Static Pressure Range
- 0 Pa (Designed as an open-basket circulation fan for large-scale airflow and uniform indoor climate control)
- 0 Pa (Designed as a high-volume circulation fan for air destratification and cooling)
- Engineered for free-air vertical circulation, with performance data measured and tested specifically at 0" SP.
- The performance is tested and provided for a working static pressure range from 0" SP up to 0.3" SP.
- The specific operating pressure range is not explicitly detailed, as all technical performance data in the document is measured at 0 Pa.
- all technical performance metrics and air volumes are measured at 0 Pa static pressure
- Up to 0.35" H₂O.
- Pressure range up to 0.5 SP (Static Pressure)
- Performance data is fully tested up to 150 Pa for single-phase models and up to 200 Pa for three-phase models. Dedicated tube fan variants for high-pressure applications are also available upon request.
- Provides a stable pressure range up to 375 Pa.
- Not specified in the document, as it is designed as a high-velocity fan for open-air purging.
Air Distance
- Not specified in the document regarding air throw or maximum distance (the text only references a 7-meter distance for measuring sound pressure levels).
- Throw up to 25 meters (maintaining a minimum airspeed of 2 m/s for effective cow cooling)
- 40 cm models: 49 meters 50 cm models: 67 meters Tramontana (130 cm): Up to 95 meters
- Direct Drive or Belt Drive (Belt drive applied to 50" and 54" fans) for optimal high-volume performance
- Covers an effective horizontal air distribution area of approximately 60 feet (+/- 60 feet) , with a recommended maximum installation height of 16.5 feet to achieve optimal results.
- High throw: up to 111 meters (maintaining high-velocity jet circulation in unobstructed rooms)
- Maximum recommended throw up to 213 feet based on field tests.
- Not specified in the document, as these are wall-mounted exhaust fans designed for building ventilation rather than free-standing circulation fans with a defined throw distance.
- Not specified or mentioned in the provided document.
- The specific throw distance is not mentioned, but it is engineered with a "focused airstream for fast purging".
- This parameter is not specified in the documentation. These units are specialized inline fans meant for installation inside ventilation tubes, ducts, or chimneys rather than open-air throw applications.
Max Air Output
- The maximum air volume ($Q_v$) at 0" SP ranges from 824 cfm (for the 10-inch model V4E25K2M71100) up to 13,359 cfm
- The maximum air volume at 0 Pa ranges from 2,300 to 17,300 m³/h for single-phase models, and from 2,350 to 21,400 m³/h for three-phase models.
- The maximum air volume ranges from 2,970 to 3,060 cfm for single-phase configurations , and from 2,970 to 3,120 cfm for three-phase configurations.
- Reaches a maximum air volume of 3,240 CFM for the 16" version and 4,620 CFM for the 20" version.
- High level of air movement up to 4,775 CFM at 0 Pa.
- Up to 31,000 cfm at 0" H₂O
- Up to 36,050 m³/h (according to AMCA 230-23) / 51,000 m³/h (according to AMCA 230-99)
- High level of air movement: up to 39,700 cfm at 0 SP (tested with an aluminum shutter)
- High level of air movement up to 40,300 m³/h.
- Up to 48,500 m³/h (according to AMCA 230-23) / 68,600 m³/h (according to AMCA 230-99)
- Tramontana (130 cm): $31,100\text{ m}^3/\text{h}$
Applications
- Agricultural (Pigs, Poultry, and Dairy barns for efficient air refreshment) and Horticultural (Greenhouses)
- Agricultural (Pigs, Poultry, and Dairy), Horticultural (Greenhouses), and Industrial applications
- Agricultural: Pigs and Poultry. Industrial: Various industrial environments. Exhaust systems: Air washers and filters.
- Agricultural: Poultry and Dairy.
- Agriculture (Dairy, Pigs, Poultry), Greenhouses, Industry
- Greenhouse horticulture Agricultural: pigs, poultry, dairy, cattle Industrial (indoor and outdoor)
- Primarily developed for Horticulture (Greenhouses) to support Next Generation Growing (NGG) and Agricultural facilities (such as Poultry housing) to maintain uniform temperature layers and control humidity.
- Primarily used in Agricultural environments (such as pig, poultry, and dairy facilities), Horticulture (greenhouses), and Industrial buildings. They support both horizontal and vertical mounting orientations.
- Primarily used to cool and ventilate truck trailers and loading docks. It is also well-suited for warehouses, shipping areas, and various industrial environments
- Suitable for agricultural and industrial use, commercial events, and the rental market. It is highly effective for drying damp spaces, preventing heat stress, removing dust or odors, and cooling areas for performers and audiences.
- Used for various agricultural applications
Product Category
- Circulation Fan / Axial Fan
- Energy-efficient Circulation Fans / Axial Basket Fans
- Galvanized Box Fans / Energy-efficient axial fans
- High Pressure Fans / Energy-efficient axial fans.
- High-Efficiency Aerodynamic Ventilation Fans / Fiberglass Cone Fans
- Horizontal Circulation Fan.
- Loading Dock Fan.
- Mobile Fans
- Panel Fans / The Versatile Exhaust Fan.
- Tube Fans
- Vertical Circulation Fans (V-FloFan).
Impeller Diameter
- Available in nominal sizes ranging from 10 to 36 inches. The precise actual outer diameter of the impeller ($\varnothing$ A01) ranges from 9 3/4 inches for the 10-inch model up to 36 inches for the 36-inch model.
- Available in nominal sizes of 16" and 20", with the actual specific outer diameter measurements (A01) being 16 1/2" and 20 1/2" respectively.
- Has a nominal fan size of 16 inches , with an actual outer impeller diameter (A01) measuring 16 1/2 inches.
- Available in a nominal size of 18 inches , with the actual specific dimension (A01) measuring 18.6 inches.
- Available product line sizes: 18, 24, 36, 50, and 54 inches (Nominal size)
- Standard nominal sizes span from 30 cm to 92 cm. Customized fan diameters can be fabricated between 300 mm and 963 mm to fit specific customer requirements.
- Available in nominal sizes of 36", 50", and 54" , with the actual specific dimensions (A01) measuring 36", 50.6", and 54.1" respectively.
- Available in nominal sizes of 40 cm, 50 cm, and 130 cm. According to the dimensions table, the precise actual outer diameter ($A01$) for each size is 420 mm, 518 mm, and 1,284 mm respectively
- Available product line ranges: 50, 63, 71, 92, and 130 cm (Nominal impeller size)
- Available in nominal range sizes of 63, 71, 82, and 92 cm.
- Nominal diameter of 150 cm (Total frame diameter A01 is 1,524 mm)
Product
| Image | Brand | Title | Impeller Diameter | Product Category | Applications | Max Air Output |
|---|---|---|---|---|---|---|
| Multifan | V-FloFan-Vertical circulation | Has a nominal fan size of 16 inches , with an actual outer impeller diameter (A01) measuring 16 1/2 inches. | Vertical Circulation Fans (V-FloFan). | Primarily developed for Horticulture (Greenhouses) to support Next Generation Growing (NGG) and Agricultural facilities (such as Poultry housing) to maintain uniform temperature layers and control humidity. | The maximum air volume ranges from 2,970 to 3,060 cfm for single-phase configurations , and from 2,970 to 3,120 cfm for three-phase configurations. | |
| Multifan | Tube Fans-The power of flexibility | Standard nominal sizes span from 30 cm to 92 cm. Customized fan diameters can be fabricated between 300 mm and 963 mm to fit specific customer requirements. | Tube Fans | Primarily used in Agricultural environments (such as pig, poultry, and dairy facilities), Horticulture (greenhouses), and Industrial buildings. They support both horizontal and vertical mounting orientations. | The maximum air volume at 0 Pa ranges from 2,300 to 17,300 m³/h for single-phase models, and from 2,350 to 21,400 m³/h for three-phase models. | |
| Multifan | Panel Fans 60Hz-Panel Fans 60Hz | Available in nominal sizes ranging from 10 to 36 inches. The precise actual outer diameter of the impeller ($\varnothing$ A01) ranges from 9 3/4 inches for the 10-inch model up to 36 inches for the 36-inch model. | Panel Fans / The Versatile Exhaust Fan. | Used for various agricultural applications | The maximum air volume ($Q_v$) at 0" SP ranges from 824 cfm (for the 10-inch model V4E25K2M71100) up to 13,359 cfm | |
| Multifan | Mobile Fans-Flexibility combined with high performance | Available in nominal sizes of 40 cm, 50 cm, and 130 cm. According to the dimensions table, the precise actual outer diameter ($A01$) for each size is 420 mm, 518 mm, and 1,284 mm respectively | Mobile Fans | Suitable for agricultural and industrial use, commercial events, and the rental market. It is highly effective for drying damp spaces, preventing heat stress, removing dust or odors, and cooling areas for performers and audiences. | Tramontana (130 cm): $31,100\text{ m}^3/\text{h}$ | |
| Multifan | Loading Dock Fan | Available in nominal sizes of 16" and 20", with the actual specific outer diameter measurements (A01) being 16 1/2" and 20 1/2" respectively. | Loading Dock Fan. | Primarily used to cool and ventilate truck trailers and loading docks. It is also well-suited for warehouses, shipping areas, and various industrial environments | Reaches a maximum air volume of 3,240 CFM for the 16" version and 4,620 CFM for the 20" version. | |
| Multifan | Horizontal Circulation Fan-Horizontal Circulation Fan | Available in a nominal size of 18 inches , with the actual specific dimension (A01) measuring 18.6 inches. | Horizontal Circulation Fan. | Greenhouse horticulture Agricultural: pigs, poultry, dairy, cattle Industrial (indoor and outdoor) | High level of air movement up to 4,775 CFM at 0 Pa. | |
| Multifan | High Pressure Fans-Reliable during high performance | Available in nominal range sizes of 63, 71, 82, and 92 cm. | High Pressure Fans / Energy-efficient axial fans. | Agricultural: Pigs and Poultry. Industrial: Various industrial environments. Exhaust systems: Air washers and filters. | High level of air movement up to 40,300 m³/h. | |
| Multifan | Galvanized Box Fans-High performance captured in a compact design | Available in nominal sizes of 36", 50", and 54" , with the actual specific dimensions (A01) measuring 36", 50.6", and 54.1" respectively. | Galvanized Box Fans / Energy-efficient axial fans | Agricultural: Poultry and Dairy. | Up to 31,000 cfm at 0" H₂O | |
| Multifan | Fiberglass Cone Fans—Efficient ventilation with high air yields | Available product line sizes: 18, 24, 36, 50, and 54 inches (Nominal size) | High-Efficiency Aerodynamic Ventilation Fans / Fiberglass Cone Fans | Agricultural (Pigs, Poultry, and Dairy barns for efficient air refreshment) and Horticultural (Greenhouses) | High level of air movement: up to 39,700 cfm at 0 SP (tested with an aluminum shutter) | |
| Multifan | Ceiling fan—For optimal air circulation in large halls | Available product line ranges: 50, 63, 71, 92, and 130 cm (Nominal impeller size) | Energy-efficient Circulation Fans / Axial Basket Fans | Agricultural (Pigs, Poultry, and Dairy), Horticultural (Greenhouses), and Industrial applications | Up to 36,050 m³/h (according to AMCA 230-23) / 51,000 m³/h (according to AMCA 230-99) | |
| Multifan | Basket Fans—For optimal circulation and a refreshing breeze | Available product line ranges: 50, 63, 71, 92, and 130 cm (Nominal impeller size) | Energy-efficient Circulation Fans / Axial Basket Fans | Agricultural (Pigs, Poultry, and Dairy), Horticultural (Greenhouses), and Industrial applications | Up to 36,050 m³/h (according to AMCA 230-23) / 51,000 m³/h (according to AMCA 230-99) | |
| Multifan | AirBreeze—The ultimate answer to heat stress | Nominal diameter of 150 cm (Total frame diameter A01 is 1,524 mm) | Circulation Fan / Axial Fan | Agriculture (Dairy, Pigs, Poultry), Greenhouses, Industry | Up to 48,500 m³/h (according to AMCA 230-23) / 68,600 m³/h (according to AMCA 230-99) |





























































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