Products

Hertz – duct type silencer

Hertz Duct Silencers is a component of ventilation system used to reduce noise transmitted inside ventilation ductwork. Duct silencers are also referred to as sound attenuators, sound traps or mufflers. They control, reduce, or limit airborne noise in ducts and openings in buildings, enclosures, or equipment rooms.

Gerhman offers the design and engineering assistance to integrate our vast line of duct silencers / sound attenuators into a system solution. As a result, you may choose from a selection of “made-to-order”, engineered duct silencers that will satisfy the requirements of each application.

Common applications

HVAC Duct Systems
Fan Inlet & Discharge
Air Handling Units
Cooling Towers
Generator / Mechanical Room Vents

Design

Galvanized sheet casing.
Designed for low air resistance with baffle combinations that attenuate particularly low-frequency noise well.
The type of insulation material has been developed to provide good noise properties, low weight and to be cleanable.
Air tightness class C and pressure class 2 according to EN 1507:2006.
Tested according to ISO 7235.