Return Air Silencer

Positioned directly above return grilles the rac prevents the transfer of occupant noise into the plenum above and prevents mechanical noise in the plenum from flanking through return grilles or open vents.

Return air silencer.

An open air return permits air to cycle into the plenum but it also allows sound and conversations to pass with it. Primary applications non ducted return grilles vertical packaged ahu return supply grille retrofit applications general. Lightweight and easy to install this innovative product provides an economical solution for return air noise and improved speech privacy. Silencers are constructed with a 22ga galvanized steel outer casing and 22ga perforated galvanized steel baffles filled with inorganic glass fiber.

The gsv4 is a grille transfer silencer. Ra catalog sheet configured for return air transfer openings or return air grilles between adjacent spaces. Compact design good broadband performance acoustically transparent perforated liner acoustical grade fibrous media primary applications. Secure z duct z secure secure z duct silencers add a level of.

The gsv is designed for low volume low velocity situations where spot attenuation is necessary. The ts 4 grille silencer is only 4 deep and is ideal for installation behind return transfer air grilles to reduce the transmission of sound into the duct chase or plenum. The 4 depth allows plenty of options for the installation of this silencer. 24 and 36 lengths price.

By and large open plenum ceiling grid systems are intended to provide a low cost air return solution for office spaces and buildings. Pottorff model ra silencer is designed for return air transfer openings or return air grilles between adjacent spaces. Non ducted return grilles vertical packaged ahu return supply grille retrofit applications general ventilation portable gen sets. What is often overlooked is the need for speech privacy and sound control.

The product provides an amazing amount of attenuation in such a compact and economical package. Air duct silencer reduces air noise traveling through hvac duct work and air ventilation systems.