Industrial "400"Level Exhaust SilencersTYPICAL Attenuation CURVE dB(A)Application:Nelson Industrial Level Silencers are designed to reducetotal engine exhaust noise 12-18dB(A). These silencersare recommended where minimum silencing is requiredand ambient noise levels are medium to high.Construction:Mild Steel:Nelson Silencers over 26.1 O.D. arefabricated of mild steel as standard material. Maximumoperating temperature is 1100F.Aluminized Steel: Nelson Silencers through 26.1 O.D.are fabricated of aluminized steel as standard materials.This material has a maximum operating temperature is1250FSilicon Aluminum Paint: Nelson Silencers through 26.1O.D. are given a coat of high heat resisting siliconaluminum paint.Gray Primer: Nelson Silencers over 26.1 O.D. are givena coat of high heat resisting gray primer as standardpaint."F" Mounting RangeStandard in sizes 4" to 14".Drilling matches125/150# ASA standard."P" Pipe EndsNPT ends offered in sizes 3/4"through 4".Companion flanges available for 4" to 14".PRESSURE DROP:Sample Specification:The silencer is to be a Nelson Industrial "100" Level Silencer constructed of aluminized steel (26.1 inch body diameter andsmaller) or mild steel (larger than 26.1 inch body diameter) with all welded construction and suitable for mounting in anyposition. The silencer shall be complete with the following Nelson accessories:
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