AEROVAC SOUND ATTENUATOR
AEROVAC Attenuator constructed entirely of G90 galvanized steel in accordance with applicable ASHRAE Guide recommendations for high pressure rectangular ductwork. Seams are lock-formed and mastic filled. The outer casing will be minimum 22 gauge galvanized steel. Internal baffles will be a minimum 24 gauge galvanized perforated steel sheet and filled with mineral wool absorbent material of sufficient density and packed under at least 5% compression to eliminate voids due to vibration and setting to obtain catalog ratings.
CIRCULAR ATTENUATOR
These in-line tubular pack less (no acoustic fill) attenuators are available in two models for special applications requiring broadband noise reduction. Performance data is provided for tree basic diameters – 8″, 12″, and 16″
Model NF SDS-20 provides excellent attenuation value wi1h a moderate pressure drop for system velocities at or near 1000 fpm.
Model NF SDS-8 is a low-pressure drop unit ideally suited for higher velocities at or near 2,000 fpm.
Models SS is single wall units that provide an economical solution to less severe noise problems. Standard unit length is two times the diameter, minimum 36.”
Models DS, SDS, and SDS-NB provide improved performance by adding a double wall casing. Unit width is diameter plus 8″. Standard unit length is two times the diameter, minimum 36,” plus 2″ long collar on each end.
CUSTOM TYPE SOUND ATTENUATOR
PRIME AC will manufacture all related customer requirements and project-based suitable application silences, to reduce and maintain the noise levels as we need to achieve for human safety factors level.
RECTANGULAR ATTENUATOR
Hospital/clean Room attenuators are available in different models, specifically engineered for sensitive area applications requiring broadband noise reduction coupled with erosion-proof acoustic fill. Performance data is provided for four basic lengths-3′ ,5′, 7′ ,and 10′. Units are also offered In 4′ , 6′ , and 6′ lengths.
Model HP-MD is a high-pressure drop unit ideally suited for system velocities at or near 1,000 fpm.
Modal SP-MD also provides excellent attenuation values along with a standard pressure drop at somewhat higher air velocities.
Model LP-MD offers the lowest pressure drop for higher velocity systems.
AEROVAC sound attenuators are manufactured in many varieties, module sizes, and materials, including no-full models and models that eliminate acoustical fill entrainment into the air stream. Our industrial silencers are engineered for HVAC noise control in commercial industrial and institutional applications. Including hospital and clean room systems.
Standard attenuators are available in different models for traditional applications requiring broadband noise reduction. Performance data Is provided for four basic lenglhs-3′, 5′, 7′, and 10′. Units are also offered In 4′, 6′ , and 8′ 1engths.
Model HP is high-pressure drop unit ideally used for system velocity at or near 700 fpm.
Model SP is a standard pressure drop unit ideally suited for system velocities at or near 1,000 fpm.
Model Mp also provides excellent attenuation values along with a moderate pressure drop at somewhat higher air velocities.
Model LP offers the lowest pressure dn:lp for higher velocity Systems.
TRANSFER SILENCERS
NR is the difference between the sound pressure levels between two rooms seperated by a wall containing a TRANSFER SILENCER. NOISE REDUCTION (NR) EXPRESSED IN DECIBELS, dB
All of our standard and custom silencers are available in any construction gauge and material to meet the most demanding application.
Our application engineers review all selections to ensure the besl available solution is applied to meet your needs.
SPEECH INTERFERENCE LEVEL: SPEECH INTERFERENCE LEVEL (SIL) is the average noise reduction, in the three speech-interference octave bends 4, 5, and 6
(500, 1000, and 2000 Hz center frequencies, respectively).