The flexibility of grooved-mechanical-pipe-joint couplings reduces the transmission of stresses
through a piping system, while an elastomeric gasket and ductile-iron housing combine to dampen vibration.
 
Percentage of additional decrease in sound provided
by three grooved-mechanical-pipe-joint couplings. Independent testing showed the couplings provide a significant redution in sound vibration.
 
 
 

Sound Attenuation in Piping Systems

Mechanical equipment in piping systems creates vibration, which can lead to significant noise issues. Noise that carries through piping systems is becoming
an increasing challenge to owners, engineers and contractors. Changing design requirements are placing mechanical rooms on intermediate- and top-floor building levels, and lightweight construction materials, which tend to vibrate more than traditional heavy materials, are being used more often.

In independent tests performed by Nutech
Testing Corp. and SE Laboratories, Inc., which specializes in environmental and field mechanical
testing, a device was found to be effective in sound attenuation: the grooved-mechanical-pipe-joint coupling.

When a coupling’s structure is examined, its ability to reduce sound transmission becomes apparent. An elastomeric gasket, contained inside a ductile-iron housing’s internal cavity, creates a discontinuity
similar to that of a flexible-arch connector. The material from which the gasket is made also serves to absorb vibration. In any application in which undesired noise is being transferred through a piping system, owners and engineers who specify mechanical couplings receive two vitally important benefits: significantly higher productivity combined with significantly reduced sound. This provides both economic and quality advantages to all involved.

For more information about Victaulic solutions for reducing noise and vibration attenuation read Sound Attenuation in Piping Systems: Mechanical couplings
cut down on vibration and noise as published in HPAC Engineering http://www.hpac.com/GlobalSearch/Article/45218/
or download the PDF.

For detailed specifications, review Victaulic submittal 26.04 or visit www.victaulic.com.