Fan silencers usually require absorptive type design as they are well known for better attenuation in mid and high frequency range (500-8000 Hz). The many different types of Fan Silencers used in industries and other ventilating applications are a major contributor to the noise issues, not only safety but also affecting worker health environmental regulations. This fan noise is one of the most predominant noise sources in an industrial plant. The magnitude and intensity of noise will vary depending on fan size, horse power, air flow, type and number of blades, static pressure, rotational speed, etc.

The fan silencers are normally selected on the basis of maximum allowable pressure drop at rated flow and the silencing criteria. These silencers are usually sized for around 5000 to 5500 FPM velocity but not exceeding 7500 FPM velocity to prevent excessive self generated noise and aerodynamic noise generation. While selecting the fan silencer, it must be ensured that the flow area throughout the silencer is sufficient to accommodate the air flow without imposing excessive restriction.

PK Building Fan Silencer will address this by

• Using high quality components ensuring their durability
• Regulating air flow by reducing loss of pressure in the silencer
• Managing restrictions in space
• Help to attain noiseless working atmosphere

Fan Silencers Applications

Generally Fan Silencers are used for Oil & Gas Plants ,Steel & Power plants, Chemical plants, Petrochemical refineries & with following applications

• Axial Fans
• Forced draft Fan
• Induced draft fan
• Primary Air Fan
• Secondary Air Fan

Input design Data Required

• Air Flow Rate (Actual CFM)
• Temperature (°F)
• Pressure (PSIG)
• Maximum allowable pressure drop (inches of water)

If this pressure drop is higher than the maximum allowable pressure drop, then select next larger size and recalculate.

PK Building Acoustics offers all types of Fan Silencing solutions and noise reduction methods to meet every need.