+ Submit your article here

Discover More about Exhaust & Ventilating Fans

7/21/2015 9:24:02 AM | by Xiao Nan Heng

Exhaust & Ventilating Fans

Exhaust and ventilating fans are commonly used in exhaust system for managing wear out gases and to replace the air within confined areas for providing high quality indoor air to achieve a suitable and healthy working environment.

A ventilating fan helps to remove excessive moisture and unwanted smells that may concern to the process and health of the people and businesses, it also induce outdoor air for high quality fresh air and circulates the air inside the premises in order to prevent stagnant air.

There are different classifications of fans which are available into the market. In order to know the best type of fan that is suited for several applications, it is good to know its classifications, variations and uses.

Classifications of fans
• Axial and Propeller fans – air flows parallel to into the shaft.
o C-wheel – adjustable even on running process and it is high in efficiency with small dimension producing variable air volume.
o A-wheel – its blade can be adjusted when it is not in motion. It produces an adaptive air volume with high efficiency and small dimension.
o K-wheel – its blades cannot be adjusted; it is small in dimension and is simply constructed.

• Centrifugal Fans (radial fans) – the direction of the air flow is relative to the shaft. There are many types of blades used in centrifugal fans: the straight steel plate paddle wheel, backward turbo-vane and forward multi-vane multi-blade and also have different wheel such as F-wheel, B-wheel, P-wheel and T-wheel.
o F-wheel – ideal for curved forward blades with small dimensions, high efficiency and the pressure is affected by pressure head
o B-wheel – has low energy consumption and uses curved backward blades with low noise emission
o P-wheel – has a self-cleaning features with high efficiency and uses straight backward blades
o T-wheel – ideal for material transport and uses straight radial blades
• Mixed flow fans – the radial and axial direction of the air flow is both relative to shafts
• Cross-flow fans – the airflow moves in an inward and outward radial direction

For further understanding about Exhaust fans, here are the types and guidelines on how to use different types of exhaust fans in various applications.

Types of Exhaust fans
• Wall Mounted Exhaust fans – ideal for instant ventilation installation; it is installed to the external wall that allows the indoor air to exit directly through the fan.
• Exterior Exhaust fans – suitable for places that requires noiseless environment. These exterior exhaust fans are used to pull out indoor air and drive it outside.
• Ceiling Mounted Exhaust Fans – typically used in elevated areas which require healthier air flow. These are mounted into the ceiling that pulls out the air through the holes in the ceiling.
• Kitchen Exhaust Fans – help to eliminate unpleasant smells in the kitchen and lessen the moisture of the place which may affect or contaminate the food. Typically mounted over the stove.
• Bathroom Exhaust fans – help to reduce moisture and are useful for circulating the air inside the bathroom
• Inline Exhaust Fans – perfect for place where ventilation is tricky, these inline exhaust fans are installed in ducting that help eliminate bad air through ducts
• Exhaust fans including lights – has special features in lighting up areas which are being ventilated.

Are you sourcing for a product or service?

Do you need a quotation?