Blower Silencers - Technical Literature - Universal: Acoustic Silencers
Blower Silencers - Technical Literature - Universal: Acoustic Silencers
Blower Silencers - Technical Literature - Universal: Acoustic Silencers
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SpecificationsSD GroupCombination Chamber-Absorptive TypeDischarge SilencerAttenuation, dB50403020100Typical Attenuation Curve63 125 250 500 1K 2K 4K 8KOctave Band Center Frequency, HzPressure Vessel Construction<strong>Silencers</strong> 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.<strong>Acoustic</strong>al packing is suitable for 325˚FThe SD Series Discharge Silencer is a heavy-duty,all welded unit constructed of carbon steel sheetand plate. It will provide excellent pulse controland is equipped with an acoustically-treated inletfor use on critical PLV applications. Its pulse andnoise performance is recommended for all but themost demanding applications, which may requirethe RD Series on page 9. Sizes 4" and larger areequipped with flanged connections drilled to125/150 lb ANSI specifications. Smaller sizes arestandard with male threaded pipe nipples. Unitssized 4" and 5" are available in either flanged ormale pipe threads. Exterior surfaces receive a shopcoat of rust-inhibitive primer and may be finishpainted in the field if desired. The SD Series is thebasic end-in, end-out configuration. A low sideinlet is designated the SDY Series; high side inlet,SDH Series; and low opposed connection, SDSSeries. The four types are fundamentally alike andperformance characteristics are identical. Mountingbrackets and other options are available—seepage 11.NL HSD SeriesDSDY Series(Low Side Inlet)YSDH Series(High Side Inlet)EYSDS Series(Opposed Connection)YNPDrainKKBKCombination Chamber-Absorptive Type Discharge <strong>Silencers</strong>P(Size)11.522.533.545681012141618202224262830PartNumber54-102-AA54-125-AA54-103-AA54-135-AA54-104-AA*54-105-AA*54-106-AA54-108-AA54-110-AA54-112-AA54-114-AA58-116-AA58-118-AA58-120-AA58-122-AA58-124-AA58-126-AA58-128-AA58-130-AAD88810101214182226303642424848545460Note: Dimensions and weights are nominal and may vary slightly with production models.Request certified drawings of specific models for exact dimensions.*Specify -TT for male pipe threaded units.L28.5333939.54557.564728598111137150176195213233250276N33333333.53.53.53.53.53.54.54.54.54.54.54.5H22.5273333.53951.5586578911041301431671862042242412678.59101112.515.51721.525.529.53035.541474755.5556268KSDY SDH SDSSizes 1" and 1.5" use URB Series (page 7)————14.517.52026.532.538404752626172768190————14.517.52026.532.538404752626172768190B————891012.514.516.518.521.524.525.528.528.531.531.534.5E————2.252.753.254567.59.511.510.512.511.513.512.514.5Min MaxSDYMin Max————7.5991213.51516.518.520.521.523.524.52628.529.5————16.52325.530.53744506570.587.593.5110.5117126.5139Min Y MaxSDSMin Max————7.59101213.51516.518.520.521.523.524.52628.529.5————9.512.515.516.51824253640.548.550.560.57071.581Min MaxSDHMin Max————30.54043.549.561.5698196104.5120.5138.5146.5157.5173.5190————32.543.5495465.57789.5113.5124.5147.5165.5182.5201.5216.5241.5Weight2025304050801151854055358201,2651,6401,9002,7103,0303,9154,4005,425© 2011 <strong>Universal</strong> <strong>Acoustic</strong> & Emission Technologies, Inc. All rights reserved.Toll-Free: 1-888-300-4272www.universalAET.com94-1547 Rev 08
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