Yahus by trox configures, calculates and selects tbsec units. Attenuator pressure loss a sound attenuator restricts the passage of air flow through it. For this purpose, trox provides technical data sheets or specific software. Trox gmbh retains all rights to work on and modify the software. L pa3 dba aweighted sound pressure level of caseregenerated noise of the vav terminal unit with acoustic cladding, system attenuation taken into account. Our noisereducing attenuators are developed for fan units and other equipment within heating, ventilating and air conditioning, also known as hvac systems. Contact verified sound attenuator manufacturers, sound attenuator suppliers, sound attenuator exporters wholesalers, producers, retailers and traders in india. Refer to the rtqs series for applications where moisture may be present in the air stream. Trox australia pty ltd level 32 101 miller street north sydney 2060.
Included in the attenuator selection computer program. Lkr is a square sound attenuator with circular end spigots. Full details of the attenuator configuration ill b epr ovided y trox th cus mer n the order is confirm d. Splitters and splitter attenuators from trox are certified for use in room air conditioning systems in accordance with vdi 6022 parts 1 and 3, din 1946 parts 2 and 4 and vdi 3802. Industrial silencers choose the hvac noise control silencer to meet your acoustics, energy efficiency or space constraint requirements. Absorptive silencers are designed to provide solutions to noise control applications by providing several variations of internal geometrics. Operating system support the following operating systems are supported. Osal osacp sound attenuators improving your environment osacp cylindrical sound attenuators function osacp is a circular sound attenuator for use in circular ducts with 100 mm glass wool insulation for optimum sound attenuation. Sound attenuator engineering data sheet a division of metal form manufacturing installation guidelines vaneaxial fan. Trox gmbh confirms that the current trox easy product finder software epf and its updates can be downloaded and used free of cost. Find here information of sound attenuator selling companies for your buy requirements. Materials available include pregalvanised steel, stainless steel, marinegrade aluminum alloy. Shop harrison labs db rca line level audio attenuator pairs or parts express inline coax cable tv signal atteunators.
The restriction of the attenuator is defined in pa of static pressure loss. K 75 mm a 100 mm c iso mm d 175 mm g 200 mm w x h width height height in itv1l or inches width in mm or inches ft2a 1200 x 600 refers to. Generally mounted within the systems ductwork, they ensure that a specific noise criteria is achieved within the internal or. Sound attenuators should generally be located as close to the noise source as possible, but far enough away to have a uniform, laminar profile of air flow. Find out more about the new rfd swirl diffuser with the sirius plenum box bringing together four functions in one product. Sound attenuators noise reduction for hvac duct systems. For selection and dimensioning of chilled beams use the program auracool. For increased insertion loss and broadband attenuation even in the low frequency range. Welcome to the acoustique calculation according vdi 2081. Generally mounted within the systems ductwork, they ensure that a specific noise criteria is achieved within the internal or external areas they are installed in. From dimension o315 and up, all sound attenuators are equipped with a centre baffle. The programs discharge tab defaults to the appendix e attenuation values for a small sound attenuators are manufactured in many varieties, module sizes and materials, including nofill models and models that eliminate acoustical fill entrainment into the air stream.
Sound attenuator without data airmaster equipments emirates. Trox products for ventilation and air conditioning technology. With the introduction of vdi 6022, specific hygiene requirements for room air conditioning systems were required for the first time. H 1800 mm and l 2100 mm the modular sections of the attenuators will be supplied as loose items to site to be installed by others. L i l o p factor rectangular 1 x d silencer not less than 0. Easy product finder selection programme trox middle east llc.
Dimensions, pressure drop and sound attenuation to suit every requirement. To comply with a specified noise level, sound attenuators. Sterbinove vyuste trox austria gmbh organizacni slozka. Noise generation and noise reduction in air conditioning systems with this program you can calculate generated noise and attenuation for components of a airconditioning system according vdi 2081, july 2001. Hi guys i have a bit to much gain in my system at the moment. Available with a centre pod for extra high attenuation and with flange connection. The pressure loss of the attenuators in this catalogue is charted in two different ways. The location of a sound attenuator can also greatly impact both attenuation and pressure loss. Noise generation and noise reduction in air conditioning systems. One common mistake is to locate a sound attenuator too close to a fan. Sound attenuators improve, obviously, the acoustics.
Every audio system needs at least one volume control, or attenuator. Attenuation due to end reflection is entered below. I bought a cheap pair of attenuators monacor ila1020 passive level attenuator pair, 212840 wanted to test with a cheap basic pair before i looked at the likes of. Sound power and sound pressure are different in that sound power is a. It is placed just downstream of the fan and, due to the clever air distribution, creates a much lower pressure drop while at the same time reducing the sound power level. Here programs for dimensioning of our attenuator products can be downloaded. Calculate the attenuation in unlined and lined ducts. I wanted to gain more volume control and reduce noise. Since most audio equipment is stereo, the most common kind is a dual gang type, which bonds two attenuators together. Sound attenuator test run trox south africa pty ltd. The attenuation from the terminal to the room is 5 db. With this program you can calculate generated noise and attenuation for components of a. The module calculates the sound attenuation required that can be achieved either by a sound attenuator or by increasing the duct attenuations.
Silencer lengths will be chosen to suit your acoustic, space andor pressure loss requirements automatically selected by asi aeroacoustic proprietary computer program. Modules will be sized to your x or y dimension, no transition required. Rectangular attenuators and splitters trox asia pacific. Splitter sound attenuators of type xsa used for the reduction of fan noise and air regenerated noise in air conditioning systems. It is also available as a combined supply and extract air configuration. This includes free field and inside rooms sound calculations, room average sound absorption coefficient, pressure drop for extended ducts and splswlair.
The pressure loss of the attenuators in this catalogue is. Rtqs series rectangular qseal attenuators the rectangular qseal attenuator includes the qualities of. Aweighted sound pressure level of caseregenerated noise of the vav terminal unit, system attenuation taken into account. The relevant calculated requirements to be placed on the sound attenuator are. This type of grille construction and installation detail is designed to meet latest home office requirements. For high insertion loss with broadband damping, even in the highfrequency range. It provides a wide offer of fans, coils, sound attenuators, filter sections and every additional one is configurable by users. Attenuators and loose splitters of all types are made to order at our manufacturing facility, with no limitations on size and material. Sound attenuator test run the test run, a doublewalled, sound insulated and airtight stretch of channel, is attached to the reverberation chamber. We are one of the largest manufacturers of attenuators in the uk, currently supplying about 60,000 units annually. The vav terminal unit is fitted with a differential pressure sensor for measuring the volume flow rate. The sound wave generated by these sources transfer its energy throughout the duct and to the occupants area as shown below. Commercial acoustics sound attenuators are manufactured in many varieties, module sizes and materials, including nofill models and models that eliminate acoustical fill entrainment into the air stream.
The channel has a part where the channel width can be varied, which means that sound attenuator elements splitters of different widths and distances can be tested. Sound attenuator attenuator length i 2 600 mm 3 900 mm 4 1200 mm 5 1500 mm 6 1800 mm 7 2100 mm 8 2400 mm airway width a few examples. For applications such as prison cells where it is necessary to have a heavy and robust construction and a high level of tamper resistance. For calculating weight of lkk choose the program weight program lkk. The control components attachments include a differential pressure transducer that transforms the differential pressure effective pressure into an electric signal, a controller, and an actuator.
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