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The other class of noise problems are those we have anticipated because of normal fan sound ratings. Some cures for these problems are:
- Select a different fan. Computerized selection routines allow us to examine many fan types looking for the quietest. Use a custom fan design Cheap Carlos Hyde Jersey , if required.
- Relocate the fan to where sound is not a problem.
- Vibration isolation and flexible connectors on the inlet and discharge will reduce structure-borne noise.
- Insulate or acoustically enclose the fan housing if housing radiated noise is a problem.
- Add silencers or duct lining to inlet and or discharge to reduce sound in these directions. However, a silencer on the outlet does not reduce the housing radiated noise or inlet noise; and an inlet silencer does not affect the housing radiated andor outlet noise.
- Look for ways to reduce system resistance since sound output is proportional to fan static pressure.
One final tip which can help to avoid noise problems is to select lower RPM fans. Fans exceeding 3000 RPM are much more likely to tune in to an attached structure resulting in structure borne noise. Structure borne noise easily propagates an entire system and can become a problem at many locations. Also Cheap Ereck Flowers Jersey , people tend to become more annoyed with higher frequen. http://wholesalesoccercheapjerseys.com/ Wholesale Authentic NHL Jerseys Wholesale NFL Jerseys Free Shipping Wholesale NCAA Hockey Jerseys Wholesale Cheap Basketball Jerseys Wholesale Baseball Jerseys Free Shipping Wholesale Replica Soccer Jerseys Cheap Jerseys Cheap NFL Jerseys Cheap College Jerseys
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