Mechanical Supplies

Silencers, Plenums & Louvers

About

Kinetics rectangular and circular HVAC duct silencers, lined plenums and acoustic louvers. All Kinetics silencers are independently tested in an NVLAP-accredited laboratory to ASTM E477-06a and AMCA 1011-03, so insertion loss, self-generated noise and pressure drop are published per model rather than estimated.

Application

Installed on AHU supply and return, on car park and kitchen extract, on generator intake and discharge, and as acoustic louvers on plant room and substation openings facing residential neighbours. Because insertion loss varies with both the direction and the speed of airflow, a silencer picked on attenuation alone can cost more fan energy than the plant it protects and still generate more noise than it removes.

Standards & Reference 6 cited

AMCA 300
The reverberant room method for measuring the sound a fan emits. The source of the sound power figures used in an acoustic calculation.
UL 181
Factory-made air ducts and air connectors: the listing a flexible or fabricated duct carries.
ASTM E84
Surface burning characteristics: the flame spread index and smoke developed index a material is classified by. Class A is the usual requirement in an occupied building.
NFPA 90A
Installation requirements for air conditioning and ventilating systems, including where fire and smoke dampers are required.

Also citedASTM E477-06aAMCA 1011-03

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