Circular Sound Attenuators with Pod

Circular Sound Attenuators with Pod | EFS-RAP

EFS-RAP

Attenuators are used as a complementary part of the HVAC system, to reduce noises arising from the fans, airflow inside the duct or any other noise source. The attenuators are used for a wide variety of applications, including: air treatment units, axial fans, centrifugal fans, generator rooms, chiller cooling units, industrial noise control systems spread along the ducting systems. The central pod is used for enhanced performance.

EFS attenuators have been tested at the SRL laboratory in the UK in accordance with BS/EN ISO 7235:2009.

The Circular attenuators are made by EFS Engineering in Israel.

Models:

Model – EFS-RA Circular Attenuator without pod
Model – EFS-RAP Circular Attenuator with pod

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The outer casing of the attenuator is made of 1.0 mm thick galvanized metal sheet
The flange ring is made of 1.5 mm thick galvanized metal sheet
Central pod is made of 1.0 mm thick galvanized metal sheet
The central pod is designed for about 25% of the air passage area of the attenuator
An acoustic insulation installed inside the attenuator for noise absorption, resists insects, pests, and moisture
The acoustic insulation is attached to the inner part of the attenuator with a galvanized metal mesh that allows the sound waves to be routed to the acoustic insulation for standard and optimal noise attenuation
A protective cover for the external closure of the attenuator, to prevent the penetration of birds, is available

Central Pod for Enhanced Performance
Interior and exterior paint finish
Protective cover for the external closure
Countersunk nuts in the outer ring for a fan connection

Tested as per BS/EN ISO 7235:2009 standard – SRL laboratory, UK

Circular Sound Attenuators with Pod | EFS-RAP

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