Text Box: Issue 10, December 2008

Text Box: To remove your name from our mailing list, please click here and then “send”. Questions or comments? E-mail us at info@airproductsequip.com or call 847-437-5952. 1555 Louis Ave. Elk Grove Village, Ill 60007-2313

Text Box: Air Products Equipment  Co.           THE BEST IN AIR DISTRIBUTION

 

Text Box: About V-A Selection Services

Text Box: Silencer Application & Selection Services

Text Box: Time. It's become increasingly critical. That's why Vibro Acoustics has established some comprehensive online services.    It's V-A’s way of helping you get in touch with an entire department of Application Engineers quickly and easily. You'll find their in-depth knowledge and experience on projects of all sizes can save you space, energy and, of course, cost. 

Text Box: Vibro-Acoustics was asked by a mechanical consultant to review a silencer selection that was made by the traditional “catalog” approach (shown left).  The silencer’s catalogued pressure drop was 0.21” w.g. at 610 fpm.  However, the actual pressure drop of the silencer, after considering system effects due to severe transitions on the inlet and discharge, was over 2.0”! Vibro-Acoustics was able to help the engineer avoid this potentially dangerous situation by selecting a long silencer (shown right) with a more gap instead of a short silencer with tight gaps.  The silencer’s cross-section dimensions fit the main system duct with no need for special transitions.  The pressure drop was kept below 0.35”, including system effects, and still achieved the desired sound criteria.

Text Box: V-A Helps HVAC Designer Avoid System Effect Disaster

Text Box: “Catalog Approach” Disaster  

Text Box: “Systems Approach” Solution  

Text Box: V-A Silencer Application and Selection Services: Helping HVAC Designers Save Time and Money

Text Box: Vibro-Acoustics provides HVAC designers free services at the project’s 70-80% design stage.  Vibro-Acoustics will:   · Perform acoustical system analyses to calculate attenuation required to meet specified in-room sound criteria. · Select Silencers to meet specified sound criteria with minimal system pressure loss at lowest total cost. · Recommended silencer locations in system to minimize aerodynamic system effects and eliminate break-out noise paths. · Provide a detailed silencer schedule and specification tailored to the projects requirements.

Text Box: CLICK HERE TO ACCESS THESE FREE ONLINE SERVICES

Text Box: Free Online Services Include: · Product Application Information · Product Selections · Lay-Ins · Schedules · Guideline Specifications   · Budget Pricing · Submittal Drawings · Testing Information · Directory Acoustical Consultants