AIR FILTER & SILENCER

BLOWER AIR FILTERS

Air filters are devices used to remove airborne particles, pollutants, and micro-organisms that are health hazards and can damage the ecosystem. In manufacturing, air filters preserve the quality of products and materials and protect critical equipment from damage and product loss.

Cleanrooms use a combination of high efficiency particulate air (HEPA) filters, which are approximately 100 times more efficient than a typical furnace filter, with methods for controlling air flow to keep particulate counts within acceptable parameters. Exhaust and stack gasses are filtered and cleaned before releasing them into the atmosphere. Air filters are used in home furnaces, offices, laboratories, clinics, hi-tech microelectronics manufacturing, chip and hard-drive production and the aerospace industry.

BLOWER SILENCER.

As the impellers of a positive displacement blower rotate, they trap a pocket of air every time they pass by the inlet and discharge connection, creating a pressure pulse. This pressure pulse presents two issues:

1 ) Pulsation causes vibration in the piping system

2 ) The low frequency noise can be a nuisance or even a health concern for people in near vicinity of the blower
Blower silencers are used to reduce this noise and vibration. Silencers are typically placed at the blower’s inlet and discharge in pressure applications. For vacuum applications a silencer is typically used on the discharge only.

There are three basic types of silencers used to reduce the noise and vibration generated by the pressure pulse.

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