🔇 ASTM E477 Dissipative & Reactive Baffle Silencers (Dynamic Insertion Loss dB)

Industrial Duct Silencer Calculator

Size rectangular and circular dissipative HVAC duct silencers (Price / Vibro-Acoustics / Kinetics) under ASTM E477: calculate octave-band Dynamic Insertion Loss (DIL dB attenuation from 63 Hz to 8,000 Hz), aerodynamic air pressure drop (ΔP <0.25" WC), self-generated airflow noise regeneration, and acoustic HVAC profits.

1. Project & Operating Inputs

Total Duct Silencers Installed (Silencer Count e.g. 16 Silencers)

Airflow per Silencer (CFM e.g. 8,500 CFM Airflow)

Customer Bid Price for Supplied & Flanged Silencer ($ / Unit)

Dissipative Baffle Silencer, Mylar Film Facing, Turning Vanes ($ / Unit)

2. Financial Breakdown & Yield

ASTM E477 DUCT SILENCER SIZING

Turnkey Silencer Package Profit

Acoustic HVAC Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost