Sounpak® HVAC Silencers

McGill AirFlow offers a complete line of Sounpak silencers for noise control HVAC applications. Sounpak silencers have been designed, tested, and manufactured to ensure the highest performance and most efficient operation at an economical price.
McGill AirFlow has conducted acoustical testing programs on all Sounpak silencers. As a result of these tests, (run in accordance with ASTM standard E477), reliable and accurate performance data is available. This data allows the performance of Sounpak silencers to be easily and accurately predicted, and makes it possible to select the proper model and size to meet specified noise reduction requirements.
The performance ratings are available in easy-to-use tabular form by contacting McGill AirFlow.

Sounpak® HVAC Silencer Construction

Specialized construction features are available for all McGill AirFlow rectangular and round silencers.
Material
Galvanized, paintable galvanized, stainless steel Types 304 and 316, and aluminum
Material Thickness
10- to 22-gauge outer shells
18- to 24-gauge perforated inner baffles
Connections
Flanges, transitions, slip-fit, raw, applied connectors
Acoustical-grade Fill Barriers
Mylar®, Tedlar®, polyethylene, and fiberglass cloth
Acoustical-fill
Standard acoustical-grade insulation, high-temperature acoustical-grade insulation

Sounpak® HVAC Silencer Models

Rectangular Silencers
Type RSF
rectangular, straight, passive silencer with acoustical fill
Type RSV
rectangular, straight, passive silencer with acoustical fill and a vapor barrier
Type RSN
rectangular, straight, reactive silencer, no acoustical fill required
Type REF
rectangular, passive elbow silencer with acoustical fill
Type REV
rectangular, passive elbow silencer with acoustical fill and a vapor barrier
Type REN
rectangular, reactive elbow silencer, no acoustical fill required
Type RWF
rectangular, wide body, straight, reactive silencer with acoustical fill
Rectangular, straight silencers are available in 3-, 5-, 7-, and 10-foot lengths.Both passive (acoustic filled) and reactive silencers are offered. Passive silencers may be ordered with a vapor barrier film between the fill material and the baffle wall. These silencers are good for plenum velocity to medium velocity applications. Rectangular silencers are available in galvanized steel, paintable steel, 304 and 316 stainless steels, and aluminum.
Round Silencers
Type CSF
circular, straight, passive silencer with acoustical fill
Type CSV
circular, straight, passive silencer with acoustical fill and a vapor barrier
Type CSN
circular, straight, reactive silencer, no acoustical fill required
Type CEF
circular, passive elbow silencer with acoustical fill
Type CEV
circular, passive elbow silencer with acoustical fill and a vapor barrier
Type CEN
circular, reactive elbow silencer, no acoustical fill required
Circular (round) silencers are available in standard inner diameters of 12 to 60 inches. The length varies as a condition of pressure and insertion loss requirements. Applications include low- to high-velocity systems. Passive silencers can be ordered with a vapor barrier between the fill and the baffle wall. Circular silencers are available in galvanized steel, paintable steel, 304 and 316 stainless steels, and aluminum.

Sounpak® HVAC Silencer Applications

HVAC
Fan discharge and intake