Blower Silencers - Technical Literature - Universal: Acoustic Silencers

SpecificationsUCD GroupChamber TypeDischarge SilencerAttenuation, dB50403020100Typical Attenuation Curve63 125 250 500 1K 2K 4K 8KOctave Band Center Frequency, HzPressure Vessel ConstructionSilencers may be fabricated in accordance withDiv. 1, Section VIII—ASME Code for UnfiredPressure Vessels. Dimensions are similarto standard models, but material typesand thicknesses are selected to meet coderequirements. Prices are quoted on application tomeet your pressure and temperature conditions.The UCD Series Discharge Silencer is a heavy-duty,all welded unit constructed of carbon steel sheetand plate. It provides pulse control and silencingfor subcritical PLV applications where the higherperformance of the URD Series on page 7 is notwarranted. Sizes 8" and larger are equipped withflanged connections drilled to 125/150 lb ANSIspecifications. Exterior surfaces receive a shopcoat of rust-inhibitive primer and may be finishpainted in the field if desired. The UCD Series isthe basic end-in, end-out configuration. A low sideinlet version is designated UCDY Series. The twotypes are fundamentally alike and performancecharacteristics are identical. Mounting brackets andother options are available—see page 11.UCD SeriesNL H DUCDY Series(Low Side Inlet)YNPDrainKChamber Type Discharge SilencersP(Size)PartNumberD L N H KMinYMaxWeight11.522.533.54568101214161820222426283056-108-AA56-110-AA56-112-AA56-114-AA56-116-AA56-118-AA56-120-AA56-122-AA56-124-AA56-126-AA56-128-AA56-130-AA222630303642424854546066617487991131261401531671791932063.53.53.53.53.53.54.54.54.54.54.54.5Note: Dimensions and weights are nominal and may vary slightly with production models.Request certified drawings of specific models for exact dimensions.Sizes 1"–6" use URB Series (page 7)5467809210611913114415817018419714.516.518.518.521.524.525.528.531.531.534.537.591112.513.515.517.51920.522.523.525.527.5212734404855.560.566.5728587952403405205959501,2001,3501,9502,4502,7503,4454,650© 2011 Universal Acoustic & Emission Technologies, Inc. All rights reserved.Toll-Free: 1-888-300-4272www.universalAET.com94-1547 Rev 06