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Cole June Ventilation Equipment (Dongguan) Co., Ltd

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City:dongguan

Province/State:guangdong

Country/Region:china

Contact Person:MrTim

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380v Negative Air Exhaust Fan Axial Flow Fan Energy Efficient

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Brand Name :KC

Model Number :1220

Certification :CE,ISO,SGS

Place of Origin :China

MOQ :1Pcs

Price :USD500-USD5000/SET

Payment Terms :T/T,D/A,Western Union,MoneyGram

Supply Ability :1500SET/MONTH

Delivery Time :3 DAYS After Deposit

Packaging Details :With regular Film and Carton

Name :Galvanized negative pressure fan

Speed :450rpm

Voltage :220V/380v

Air Volume :68000m³/h

Material :Galvanized steel

Noise Level :≤68dB

Color :Silver

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Exhaust Ventilation Combined With Wet Curtains Galvanized Negative Pressure Fan

The material classification can be divided into iron box (ordinary fan), fiberglass reinforced plastic fan, plastic, aluminum, stainless steel fan, etc. Fans can be classified according to the direction of airflow, including main structure flow, oblique flow, mixed flow, centrifugal and axial negative pressure fans with cross flow patterns. According to the flow direction of the airflow entering the impeller, it can be divided into axial flow fans, centrifugal fans, and diagonal and mixed flow fans. Fans can be divided into pressure based on the local usage of fans (hereinafter referred to as fan pressure) and external and internal explosion-proof motors in the port channel. The main structure of the explosion-proof motor explosion-proof negative pressure fan is extracted from the sealed room of the local fan (hereinafter referred to as the extraction fan). Fans can be divided into axial flow fans, mixed flow fans, roof fans, air conditioning fans, etc. Fans can be divided into low-pressure and medium pressure fans and high-pressure fans according to pressure.
Technical features of the 138012201060900 model negative pressure fan: It adopts CAD/CAM optimized design and manufacturing, and has the characteristics of high full pressure, large air volume, low noise, low energy consumption, stable operation, and long service life; The automatic opening of blinds can achieve dust-proof, waterproof, and beautiful appearance; It can blow or draw air, making it the best choice for cooling and ventilation in greenhouses and factories. For some special installation occasions, double mesh or double mesh+louver type fans can be customized.

Application

Exhaust Ventilation: Negative pressure fans are installed outside workshop windows, typically positioned to draw air out, effectively removing unpleasant odors. They are commonly used in factories.

Combined with Wet Curtains: These fans can be used in conjunction with wet curtains for cooling in workshops during hot summer months. Regardless of how hot the workshop gets, the wet curtain-negative pressure fan system can lower the temperature to around 30°C while maintaining a certain level of humidity.

High-Temperature or Odorous Workshops: Suitable for heat treatment plants, foundries, plastic factories, aluminum profile factories, shoe manufacturing plants, leather factories, electroplating plants, and various chemical factories.

Labor-Intensive Enterprises: Ideal for clothing factories, assembly workshops, and internet cafes.

Horticultural Greenhouses: Used for ventilation and cooling in greenhouses and livestock farms.

Textile Factories: Especially suitable for environments requiring cooling and a certain level of humidity, such as cotton mills, woolen mills, mills, weaving factories, chemical fiber factories, warp knitting factories, false twisting factories, knitting factories, silk factories, and sock factories.

Warehouse and Logistics: Applicable in storage and logistics sectors.

Installation Guidelines

Optimal Location: It’s best to install negative pressure fans in the middle of the building to minimize air duct resistance and shorten the length of installation pipes. If possible, position the fan in the prevailing wind direction of the cooling environment.

Sealing and Waterproofing: Ensure proper sealing and waterproofing between indoor and outdoor ducts during installation to prevent rainwater leakage.

Structural Support: The installation location must have a sturdy structure capable of supporting the weight of the negative pressure fan and the ducts, as well as maintenance personnel.

Installation Environment: Negative pressure fans can be mounted on outdoor floors, walls, or roofs. However, the installation site must ensure fresh, unobstructed air. They should not be placed near sources of foul odors or exhaust gases, such as restrooms or kitchens. If there are insufficient doors or windows, a dedicated exhaust fan must be installed, with an airflow capacity of at least 80%–90% of the total airflow of the negative pressure fan.

Technical parameter

Model Number	Inlet Diameter (mm)	Blade Speed (r/min)	Airflow (m³/h)	Noise (dB)	Power (kW)	Rated Voltage (V)	Weight (kg)	External Dimensions (mm)
F-1	1270	450	44500	68	1.1	380	80	1380 × 1380 × 400
F-2	1110	400	37000	75	0.75	380	60	1220 × 1220 × 400
F-3	950	350	25000	55	0.55	380	50	1060 × 1060 × 400
F-4	790	320	19500	50	0.45	380	40	900 × 900 × 400

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