Rectangular duct silencer. Rectangular Duct Silencers.

Rectangular duct silencer Cross-Talk Silencers Specially designed to solve the problem of transferring air from adjacent areas whilst maintaining It was found that the bar-silencers would not be a cost effective method of sound attenuation on their own, due to less effective noise absorption, higher material costs and higher pressure losses, than traditionally lined sections of ducting, however, the barsilencers could be used in conjunction with traditional methods ofsound attenuation to increase the attenuation or in low flow velocity Ductwork; LLF60 Straight Rectangular Silencer; Available in United States. In addition, vibration of the system and pressure drops occuring at various points, such as when air passes through filters or dampers, also cause noise. They are non-erosive – to eliminate carry-over of inorganic particulate matter from the silencer. 10 7. Ruskin Follow . IAC’s range has an acoustic performance specifically engineered for the 63Hz, 125Hz and 250Hz octave bands. Acoustic Louvres Superior acoustic performance, low pressure drop, and good weather resistance. Consult iac Acoustics's entire Quiet-Duct® Silencers catalogue on MedicalExpo. Internal Valves. Sort by: ducts. The rectangular assortment consists of rectangular ducts, fittings, dampers and silencers with dimensions in accordance with EN1505 when not otherwise specified. SPECIFICATIONS. Quiet-Duct Commercial Series Silencers Section 15000 Specifications 1. writing, at least 10 days prior to the bid due-date. PVC Rectangular Attenuator Silencer Range . The EMTEC RAAC 38 Rectangular Duct Silencer has an approximate volumetric weight of 165 Kg/m3. The only fields required are the volume flow rate, the width, and the height. Rectangular Ducting - Catalogue Page copied to clipboard. About system; circular silencers; flexible silencers; acoustic rectangular silencer; dampers, actuators; cav, vav, pav flow regulators; STRUT assembly system; insulated ducts and fittings ; rectangular ducts and fittings ; roof hoods and cowls; tapes and nails for insulation The silencers are delivered with the SPIRAL®system seals in the standard version. Typical duct silencer applications. 44. Optional Features. Home; About Us. More often than not they are mounted between the fan and the air supply duct or air exhaust duct and before the air Manufactured to join on to rectangular ductwork, Ruskin Noise Control rectangular silencers come in a variety of configurations. Duct silencers for confined spaces PA Rectangular Silencer (Model: RS) is designed for silencing noise transmitted through ductworks and is AMCA certified. But it’s also possible to have silencers that don Dynasonics. Performance data shown include static and dynamic insertion loss, self-generated airflow noise, and pressure loss in General types of duct silencers include rectangular duct silencers, circular duct silencers, and flexible duct silencers. Width. Noise Solutions. 1 SECTION INCLUDES A. 2 Duct Silencers A. LDR is designed for low air resistance with baffle combinations that dampen particularly low-frequency noise well. Straight-Through DACKA is a rectangular duct attenuator in galvanized steel* with splitters filled with Acutec® attenuation material. VENCO - Truly Ventilation | Turgutlu OSB 2004/5 PK 45400 Turgutlu, Manisa, Türkiye | Telefon: +90 236 332 50 70 | E-Posta: venco@venco. Innovative silencer collection designed with the needs of our customers in mind. All of the silencers have the ability to be stacked into large banks, Our rectangular duct-mounted splitter silencers are “mass customised” to balance airflow volume, resistance, self-generated noise, and insertion loss according to your specific requirements. These are used to lower the sounds generated from fans and HVAC systems. All Dynamic Insertion Loss and Self-Noise PVC Rectangular Ducting Silencer / Attenuator; PVC Rectangular Ducting Silencer / Attenuator. er casings of rectangular silencers shall be made of Out 22 gauge type #G-90 lock-former-quality Rectangular silencers are available in galvanized steel, paintable steel, 304 and 316 stainless steels, and aluminum. Rectangular Silencers. Hinged Metal Acoustic Doors; Wooden Acoustic Doors; Acoustic Ventilation Elbow Silencer Brochure Rectangular Silencers By specially tailored construction elements, Dynasonics offers a broad range of products all backed by NVLAP accredited acoustical testing laboratory data. When From in-line silencers to blowdown vent silencers to duct silencers, our silencers come fully-customized to meet the requirements of your noise problem. All materials used in the silencer must be free of rust, weld splatter, mill scale, or other foreign matter. For over 35 years we have been dedicated to providing the commercial and industrial acoustic markets with innovative tools that predict noise levels and simplified product selection makes Dynasonics the product to choose for every application. They are constructed with a rectangular casing made of galvanized or stainless steel and filled with sound-absorbing materials. This is our 220x90mm x 500mm Long Duct Silencer. Technical Properties: The silencers are used for sound absorption occured in air conditioning and ventilation systems. The rectangular attenuators are available in the following models: Helios silencers offer effective sound insulation with low pressure losses. When HVAC Attenuators Rectangular and cylindrical duct silencers from IAC Acoustics provide effective and predictable noise reduction at substantial savings over other methods due to our products being laboratory developed and tested under controlled conditions. Attenuators or 'silencers' are suitable for temperatures up to 200°c and a maximum pressure of 1500 pascals. Exhibit with us {{>currencyLabel}} Back {{>currenciesTemplate}} English. 300mm dia ventilation attenuators silencers in various lengths and diameters. Hinged Metal Acoustic Doors; Wooden Acoustic Doors; Acoustic Ventilation DACKA is a rectangular duct attenuator in galvanized steel* with splitters filled with Acutec® attenuation material. x 48 in. AABC National Standards for Total System Balance, 7th Edition B. [1] [2]In its simplest form, a sound attenuator consists of a baffle within the Turnkey Duct system components supply includes Silencers, Stacks, Support structures and Ductwork (including square to round transitions). 91kB) FACILE: Quality: 24/05/2018: Installation, commissioning, maintenance (pdf 66. Centrifugal Fans. Dynasonics offers a comprehensive line of noise control products used extensively in projects across the globe. Solid noses at both ends enhance the low frequency performance, minimize water ingress into the acoustic Rectangular Dissipative Type; Reversible Orientation; Available in Lengths upto 3 Meters Long; Modular Construction, Suited for Stacking; Bell Mouth Baffles The Rectangular Q-Seal attenuator includes the qualities of the RT series attenuator and incorporates an infill system fully wrapped in an impermeable plastic membrane/film. This variety of silencer is generally suitable for all conventional applications, including air-handling units, mixed flow fans, inline centrifugal fans and roof exhaust ducts. Computed results are compared with published theoretical and experimental . Rectangular Silencer Brochure Return Air and Security Silencers Crosstalk Silencers STC (Sound Transmission Class) Silencers Secure Z Duct Silencers er casings of rectangular silencers shall be made of Out 22 gauge type #G-90 lock-former-quality galvanized steel. Attention will also be paid on the effects of cavity The AM36 Rectangular Dissipative Silencer has a tapered pod, with medium dynamic insertion loss and medium pressure drop. The role of rectangular silencers disipativos is to decrease or even eliminate the noise produced and transmitted through the inside of a network of channels through which a current of air. Overall, the choice of fill material for a duct silencer will depend on several factors, including the The LDR is a baffle silencer with a rectangular design. A60 Tapered Rectangular Silencer . Silencer Face Velocity, m/s 5. The LDR is a baffle silencer with a rectangular design. Attenuator with aerodynamically shaped splitters. to absorb the sound. They are commonly installed near the system that is generating noise, such as a fan. Construction Options. Rectangular sound attenuator with low build-in heights. A The A Rectangular Dissipative Silencer has a tapered pod, with high dynamic insertion loss at a standard pressure drop. 1 GENERAL-A. MORENDO. They are factory built to fit the duct, made in sections to fit under or through beams, with or without various types of acoustic media that control noise breakout and incorporate different Bends: All Galloway rectangular silencers can be manufactured as vertical (VB), horizontal (HB) or T-section (TB) bends. ncc@ncc-sz. New Products. 213. The main advantage of flexible silencers is as the name suggests, their flexibility and elasticity. It is usually installed on the main duct to reduce the noise rating of the supply air from the equipment. CONSTRUCTION: Standard Material Galvanized Sheet Steel. Duct system components allow the sound t The EMTEC RAAC 38 Rectangular Duct Silencer has an approximate volumetric weight of 165 Kg/m3. Product Features. ®Model: IAC Quiet-Duct Power-Flow Rectangular silencers (High Temp). Non-pregnable – to prevent or minimise the absorption of gases and The silencer may be mounted on the fan or blower inlet or a supply air duct or along a wall. [1] [2]In its simplest form, a sound attenuator consists of a baffle within the Rectangular ducts are manufactured to meet the most stringent HVAC/Industrial specifications and quality standards. Commercial Acoustics Rectangular Silencers Interceptor Liner (Optional) (Acoustically Transparent Erosion Prevention Lining) Suggested Specification for Rectangular & Circular Sound Attenuators Silencer Submittal Sheet Suggested Installation Guidelines. Login; Register; My Cart ; Heating, Air Conditioning, Ventilation and Air Distribution Products Web Line Direct Help Line 1. After the corner pieces are produced from DKP sheet, it is coated with galvanization. Fax Send Share with a colleague. Heating, Air Conditioning, Ventilation and Air Distribution Products Web Line Direct Help Line 1. 61 KB (English) Download. It features: Solid Radius Nosepiece ; Duct Silencers-1 v001 Price Duct Silencers Division 23 – Heating, Ventilating, and Air Conditioning Section 23 33 19 – Duct Silencers The following specification is for a defined application. R02 6 RECTANGULAR SILENCER Available in eight standard lengths R02 6 Rectangular Duct Mounted Silencers have excellent attenuation properties, achieved with sound absorbing infill splitters, retained in the attenuator casing by a perforated liner. Accessories. com. VAV boxes, rectangular ductwork; air handling units, generator radiator silencing, tunnel ventilation, general ventilation With Non-fibrous Liner: Cleanroom systems, hospitals, chemical laboratories, cooling towers (DM Under reverse flow conditions, sound is refracted away from the walls and towards the center of the duct silencer. SKS silencers have good sound attenuation characteristics. The Clean-Flow attenuators are available in an extensive range of RAL colours for Polyester Powder Coating. This practice of quality control The AM36 Rectangular Dissipative Silencer has a tapered pod, with medium dynamic insertion loss and medium pressure drop. From £29. Clean-Flow™ Rectangular Silencers are ideal for systems which require a higher degree of cleanliness and hygiene, i. Material(s) used: UPVC. The EMTEC RAAC 20 Rectangular Duct Silencer has inter-baffle separation of 60mm and the individual baffle elements are 190mm wide. View as Grid List. Insert silencers (baffles and support structure, without casing) for installation in pre-existing ductwork and stacks Rectangular silencer features Alternative construction - Model 112 standard grade, sheet metal silencers Nailor's dissipative rectangular duct silencers are designed to offer superior acoustic and aerodynamic performance. IAC Quiet-Duct Ultra™ /ZAPD silencers do not introduce any additional pressure drop into the system. It was found that the bar-silencers would not be a cost effective method of sound attenuation on their own, due to less effective noise absorption, higher material costs and higher pressure losses, than traditionally lined sections of ducting, however, the barsilencers could be used in conjunction with traditional methods ofsound attenuation to increase the attenuation or in low flow velocity HVAC Rectangular and Circular Duct Silencers. The RDS is designed with an efficient acoustical and well-engineered A-Tech Rectangular Duct (“ARD”) Silencers are designed to reduce noise primarily in ventilation and air-conditioning systems within the office buildings, in lecture/conference rooms, hotels, LDR 50-40 Easily-fitted silencer immediately before or after the KE, KT, RS and RSI rectangular duct fans. It is designed for easy fitting immediately before or after components in rectangular ducts. Silencers should be installed onto angle or channel supports placed at right angles to the baffle elements across the width of the silencer. 150 dia HVAC Rectangular and Circular Duct Silencers. 5. The SLF Rectangular Dissipative Silencer has a straight pod with high dynamic insertion loss and standard pressure drop. global ç The tabulated airflow in m/s is based upon tests conducted in the IAC Acoustics R&D Laboratory, in accordance with applicable sections of internationally recognised airflow test codes. Static pressure loss of silencers shall not exceed those Approval 2706/92, Duct insulation (pdf 276. Nailor's dissipative rectangular duct silencers are designed to offer superior acoustic and aerodynamic performance. Power-Flow silencers are available in any size required for your applications. The approach takes into D-Duct™ Acoustic Diffuser Silencers are appropriate for use on axial fan systems. The resistance to airflow is a Rectangular silencers are designed to reduce noise in rectangular ductwork while minimizing system pressure drop. 8960290. Phone-alt Envelope-open-text Whatsapp Facebook Instagram Linkedin Youtube. Models PL, PLFL, PLFM, PLFS, PML, PMS, PS. The infill acoustic material is protected with a lining which prevents fibre erosion. Silencers for rectangular ducts. Rectangular and cylindrical duct silencers from IAC Acoustics provide effective and predictable noise reduction at substantial savings over other methods due to our products being laboratory developed and tested under controlled conditions. configurations and the backing cavity depth affect the sound propagation across a MPPA silencer in a rectangular duct. CADENZA. The casing options are the same as with our circular silencers; the only real difference is the shape. Though noise control criteria have been established for years (for instance, Beranek [2]), flow duct silencing devices are the key elements in the noise control process. 19kB) FACILE HVAC Attenuators Rectangular and cylindrical duct silencers from IAC Acoustics provide effective and predictable noise reduction at substantial savings over other methods due to our products being laboratory developed and tested under controlled conditions. erior partitions for rectangular silencers shall be not Int less than 26 gauge type #G-90 galvanized lock-former-quality perforated steel. Jet Fans. 8615616126288. 6. When Duct Fans. Aluminum. It provides effective suppression of noise transmitted to the duct. 13-2005 American National Standard Measurement of Sound Pressure Levels in Air C What is the Function of Sound Attenuator?A duct silencer is a component of ventilation system used to reduce noise transmitted inside ventilation ductwork. Mathematical models for predicting the insertion loss of the silencers are a critical part of an optimum design and models to evaluate the insertion loss of absorptive rectangular silencers were developed by different researchers [1, 2], Tne porous Rectangular Ducting. The silencers incorporate glass fiber external to the Rectangular or box silencers attenuation fan and blower noise, and are positioned on the centrifugal fan discharge flange, in the duct system, or configured as part of an inlet box. iacacoustics. Assemblies as large as 25’ high x 250’ wide are in continuous operation. Units are available in three models for traditional applications requiring broad band noise reduction. The range includes solutions in all sizes and designs, which are ideally adapted to the Helios fan range – both for installation in rectangular duct and round duct systems. 4711 Fax: 317. 01 Materials. Circular Duct Silencers Nano Silencer/Soundscape Optimizers Industrial Silencers Tunnel Ventilation Splitter Cross-Talk Silencers Acoustic Louvres Vent Silencers Vibration Isolators Elbow Silencers ‘All-weather Bidirectional’Duct Silencers. LENTO. Extended casing. Interior partitions for rectangular silencers shall be not less than 26 gauge type #G-90 galvanized lock-former-quality perforated steel. 353. They can be made in different widths and heights, and each model number denotes a different percentage open area and length combination. Outer casings of rectangular silencers shall be made of 22 gauge type #G-90 lock-former-quality galvanized steel. Download. tr To attenuate low-frequency noise in square ventilation ducts, a tunable duct silencer consisting of composite Helmholtz resonators (HR) that precisely controlled by a step motor was proposed in When HVAC systems are in operation, they can be quite noisy. About system; squer - rectangular ducts; rectangular bends; rectangular reducers; t-pieces and crossing t-pieces; end cap; roof hoods and cowls; tapes and nails for insulation Silencers SD (rectangular) ☑ For attenuation of noise produced by a ventilation system and spreaded along ventilation ductworks ★BLAUBERG Ventilatoren. Series of products . Silencer inlet and outlet connection dimensions shall be equal Furnish and install “Quiet-Duct” (rectangular) silencers of the types and sizes shown on the plans and/or listed . The Splitter Duct Silencer has a durable and well engineered aerodynamic design Duct MUFFLER NOISE Silencers - Reduce Duct Air Noise - All Duct Sizes - Round & Rectangular - Easy Install - Buy On-Line. From £24. Galvanized Steel. Silencer inlet and outlet connection dimensions shall be equal Rectangular duct silencers SKS are designed for rectangu-lar duct fans VKS/VKSA and can be mounted into a system of rectangular air ducts. Various electrical and mechanical devices in the HVAC system, such as fan, transmit noise when in operation. 89. Length. Fiberglass cloth. to 48 in. An increase in duct cross sectional area will Rectangular and Circular Silencers. com ç The tabulated airflow in m/s is based upon tests conducted in the IAC Acoustics R&D Laboratory, in accordance with applicable sections of internationally recognised airflow test codes. By tailoring construction elements, Dynasonics provides a robust product offering backed by data collected in our NVLAP accredited acoustical testing laboratory. These codes require specific lengths of straight duct both upstream and downsteam of the test Though noise control criteria have been established for years (for instance, Beranek [2]), flow duct silencing devices are the key elements in the noise control process. Attention will also be paid on the effects of cavity Data for rectangular and tubular type silencers shall be presented for tests conducted using silencers no smaller than the following cross-sections: Rectangular, inch: 24 x 24, 24 x 30, or 24 x 36 5. For the baffle, it [] Ductwork; A60 Tapered Rectangular Silencer; Available in United States. Silencers shall be the product of IAC writing, at least 10 days prior to the bid due-date. Our office is located in Seri HVAC Attenuators Rectangular and cylindrical duct silencers from IAC Acoustics provide effective and predictable noise reduction at substantial savings over other methods due to our products being laboratory developed and tested under controlled conditions. That’s why we can often see them installed near fans, AHUs or air valves. Static pressure loss of silencers shall not exceed those 2. Power Flow Rectangular Silencers. 18 12. Prudent Aire Engineering Sdn Bhd - RS - Rectangular Silencer Others Selangor, Malaysia, Kuala Lumpur (KL), Seri Kembangan Manufacturer, Supplier, Supply, Supplies, Prudent Aire Engineering Sdn Bhd specialises in the manufacture of a diverse range of air terminal devices, dampers, designed and manufactured to international standards. Ducts and fittings made of EPP Update 2023-07-12 Turnkey Duct system components supply includes Silencers, Stacks, Support structures and Ductwork (including square to round transitions). Product Code. The simple design, relatively low cost, and high level of performance The LDR is a baffle silencer with a rectangular design. hospitals or Complemented with attenuated duct silencers to prevent the noise from travelling through the building and, together, they usually provide a highly effective solution. Filler material shall be inorganic glass fiber of a proper This Rectangular Duct Silencer wall has been fitted as an industrial soundproofing for the client’s data center HVAC units. Besides standard constructed from galvanised steel (GI), stainless steel material is available upon request. Rectangular Air Duct Noise Silencers - Duct Noise Mufflers | Round Duct up to 16" - Rectangular Duct Available | Easy In-Line Duct Installation. All types of duct accessories including flanges, raw ends and airtight clamps are also available. 08 6. Duct silencers for confined spaces R02 8 RECTANGULAR SILENCER Available in eight standard lengths R02 8 Rectangular Duct Mounted Silencers have excellent attenuation properties, achieved with sound absorbing infill splitters, retained in the attenuator casing by a perforated liner. duct silencers . Stay Connected: Customer Supports & Sells +91 981-000-6942 | 959-991-0851 . Rectangular Dissipative Type; Reversible Orientation; Available in Lengths upto 3 Meters Long; Modular Construction, Suited for Stacking; Bell Mouth Baffles; QUERY. 1. All Dynamic Insertion Loss and Self PVC Rectangular Ducting Silencer / Attenuator; PVC Rectangular Ducting Silencer / Attenuator. To assure this, silencers are periodically tested in our accredited aero-acoustic laboratory. Outer Casing: 11 gauge galvanized Lindab's rectangular air duct system is a complement to our circular air duct system, Lindab Safe, when space is tight or flows are very large. Duc Silencers are designed to achieve permissible near field / far field noise level with a touch-safe outside skin temperature while maintaining adequate strength to support Stack loads. in the schedule. 01 Aerodynamic Performance. 01 This web tool calculates recommended Sounpak rectangular silencer models for given physical, acoustical, and pressure specifications. Intake silencers may be tubular shaped and identified as a circular or round silencer or rectangular as determined by the inlet flange geometry. 0 Rectangular Duct Silencers & Splitters The ‘DS’ Type rectangular attenuator is made from galva - nised sheet steel with 40 mm wide Doby slide on flanges. com 297 North 9th Street, Noblesville, IN 46060 Toll Free Phone: 888. iac-acoustics. All fittings and ducts are Data for rectangular and tubular type silencers shall be presented for tests conducted using silencers no smaller than the following cross-sections: Rectangular, inch: 24 x 24, 24 x 30, or 24 x 36 Tubular, inch: 12, 24, 36 and 48. Page: 1/8. Add to Wish List Add to cavities spaced 16 inches on center. 01 Section Includes A. 19kB) FACILE: Technical catalogue: 04/05/2022: Building product declaration (pdf 178. 19 HL silencers are designed for air handling systems that require the ultimate in cleanliness and hygiene. Explore the range. Galloway Acoustics offers a wide range of duct silencers in Dubai UAE catering to the HVAC duct systems for Commercial, Institutional and Industrial buildings. Duct Silencers. Product Data Sheet. All fittings and ducts are Rectangular silencers effectively eliminate noise generated by air conditioning ducting while preventing as much pressure drop and energy loss as possible. Set Descending Direction. A hose is installed in the duct system so that condensation Material: The silencer case is produced from 1 mm galvanized sheet and its baffle from 0,5 mm galvanized sheet. Please contact us for advice relating to your new project. The male fittings are available separately. This practice of quality control 6. These products provide a broad-band range of attenuation using aerodynamically shaped acoustic baffles filled with absorptive acoustic grade media. The A Rectangular Dissipative Silencer has a tapered pod, with high dynamic insertion loss at a standard pressure drop. Straight-through Silencers Rectangular target silencers. Straight-Through Best HVAC Duct Silencers, Sound Dampers, Acoustic Attenuators Manufacturers, Suppliers & Exporters in India. From September 2020Airborne noise generated from HVAC equipment is a concern in commercial and industrial buildings. 16 11. Ceiling Fans. 3719. 53. catalog including Round Air Duct Mufflers/Silencers,Rectangular Air Duct Mufflers/Silencers Serving the HVAC industry since 1992 Call: (800) 435-2526 Email Menu To estimate the efficiency of parallel baffle-type silencers in rectangular ducts, a two-dimensional multi-layer model is presented for predicting their transmission loss. Air Handling Units. The LLF60 Rectangular Dissipative Silencer has a straight pod, medium dynamic insertion loss, and low pressure drop. VAV boxes, rectangular ductwork; air handling units, generator radiator silencing, tunnel ventilation, general ventilation With Non-fibrous Liner: Cleanroom systems, hospitals, chemical laboratories, cooling towers (DM Rectangular Duct Silencers. The infill acoustic material is fire retardant and complies with Class ‘O’ Building Regulations. eNoiseControl. About system; circular silencers; flexible silencers; acoustic rectangular silencer; dampers, actuators; cav, vav, pav flow regulators; STRUT assembly system; insulated ducts and fittings ; rectangular ducts and fittings ; roof hoods and cowls; tapes and nails for insulation Rectangular silencers effectively eliminate noise generated by air conditioning ducting while preventing as much pressure drop and energy loss as possible. Add to Wish List Add to Rectangular Silencers. To calculate the attenuator you can use our IT-online tool LindQST or DIM-silencer, where splitter distance, length and height can be optimized for the best perofmance. The resistance to airflow is a function of the face velocity and length. There are two main types of sound attenuators, these are cylindrical, or rectangular, and at AMS The nature of attenuation in rectangular ducts lined on two and four sides with and without mean flow is discussed. The rectangular attenuators are available in the following models: Silencer for Rectangular Ducts. These duct silencers feature rounded solid noses, specially shaped to minimise pressure drops and thus avoid performance compromise The EMTEC RAAC 33 Rectangular Duct Silencer has an approximate volumetric weight of 175 Kg/m3. The combined interior diffuser cone and exterior square jacket casing make these units aerodynamic regain devices as well as silencers. As one of the leading rectangular duct silencer enterprises in China, we warmly welcome you to buy customized rectangular duct silencer from our factory. Available Colours: White. Performance data shown include static and dynamic insertion loss, self-generated airflow noise, and pressure loss in circular duct silencers; rectangular duct silencer with attenuating baffles (splitters) Circular sound attenuators can be equipped with a pod (round baffle) or vertical baffles for better-attenuating properties– especially in diameters of 630 mm and larger. 1060. Systemair offers the most suitable, energy-optimised air handling units for any project, from large, flexible, modular solutions to small and compact single units. Roof Fans. The Quiet-Duct Ultra™ /ZAPD line was designed for applications in which acoustic attenuation is required and no allowance can be made for pressure loss. The A60 Rectangular Dissipative Silencer has a tapered pod, with high dynamic insertion loss at a standard pressure drop. In stock. KRUGER Type KRA rectangular splitter attenuators have been tested in accordance with ISO 7235 – Measurement Procedures for Ducted Silencers. Rectangular silencers are designed for rectangular ducts and are commonly used in HVAC systems and industrial applications. Made of galvanised steel sheet or flexible aluminium duct. PART 1 – GENERAL 1. VAW Systems’ RSA (Rectangular), REA (Elbow), and CSA (Circular) silencers are specifically designed for noise control in commercial HVAC air distribution systems and industrial ventilation systems. Back; rectangular silencer cross sections range from 6 in. 257. These units are circular or rectangular duct type silencers, installed quickly and easily to provide minimum air leakage. Designated as “RNM” for Rectangular No-Media, this product line is designed to match straight rectangular ductwork connections and casing geometry. 1 Item . Silencers shall be the product of IAC The IAC Type MS Quiet-Duct Silencers have been rated with procedures certified in accordance with applicable portions of ASTM E477. Rectangular GI Ducts are fabricated out of hot dipped galvanized steel sheet of lock forming quality as standard duct material. Inline duct silencers provide an effective means of reducing this noise. Its external surface is covered with a special glass fibre fabric that protects the mineral wool against abrasion from elevated air velocities up Data for rectangular and tubular type silencers shall be presented for tests conducted using silencers no smaller than the following cross-sections: Rectangular, inch: 24 x 24, 24 x 30, or 24 x 36 5. LLF60 Straight Rectangular Silencer . Product Information. 316 Stainless Steel. These codes require specific lengths of straight duct both upstream and downsteam of the test • KCRS Rectangular Straight Duct Silencers • KCES Elbow Duct Silencers • KCCS Circular Duct Silencers • Custom Duct Silencers RECTANGULAR / CIRCULAR DUCT SILENCER TYPES • Elbow Dissipative (absorptive) • Straight Dissipative (absorptive) • Reactive (no media), Elbow and Straight • Cross-Talk • Axial Cone • Transitional These duct silencers have the following key characteristics: Cleaning – The benefit of IAC’s Clean-Flow Quiet-Duct® attenuator is that the non-removable fill permits periodic cleaning of exposed surfaces with a soft brush vacuum cleaner. 14 10. Dynasonics rectangular silencers are engineered to provide a highly configurable noise control solution tuned to meet project specific acoustic and aerodynamic requirements. For small mains, branches, and duct run-outs, module sizes fit every need. Transitions The EMTEC RAAC 38 Rectangular Duct Silencer has an approximate volumetric weight of 165 Kg/m3. A. www. 01 Materials A. 01 General A. Tested according to ISO 7235 standard. The EMTEC RAAC 20 Rectangular Duct Silencer is an absorptive baffle attenuator which converts duct-borne noise energy into thermal energy within the acoustic media contained in standard Quiet-Duct silencer. The TDS is a cylindrical silencer that utilizes an absorptive, straight-through design to provide mid-to-high frequency attenuation with minimum pressure loss. This practice of quality control Tunable silencer for rectangular ventilation duct based on composite Helmholtz resonators Cong Gao1, Chuandeng Hu2, Bo Hou3,4, Xiaoxiao Wu3,4, and Weijia Wen3,4,* 1 Tech X Academy, Shenzhen Polytechnic University, Shenzhen 518055, China 2 Shenzhen Fantwave Tech. It features: Solid Radius Nosepiece Acoustically transparent perforated liner Acoustical grade fibrous media 1-1/2" slip flange Primary Applications: Standard: VAV boxes, rectangular ductwork; air handling units, generator radiator silencing, tunnel ventilation, general Fantech Rectangular Attenuators are available in different models to suit a variety of applications and duct dimensions. New York, in accordance with ASTM E477 “Standard Method of Testing Duct Liner Materials and Prefabricated Silencers for Acoustical and Airflow Performance. Silencers shall be the product of IAC Type LFM Quiet-Duct Silencers have been rated with procedures certified in accordance with applicable portions of ASTM E477. Model Type Description; Type RSF: Rectangular, straight, passive silencer with acoustical fill: Type RSV: Bottom left: Sounpak round silencers quiet the noise from an exhaust duct system being used in a tunnel excavation Enquiry about Rectangular Duct Silencers. Absorption type silencer, properties determined by design and silencing materials and the damping material. 95. SD 40x20 SD Rectangular splitter silencer. 01 Aerodynamic Performance A. Industrially, these are custom built to meet attenuation requirements and to Browse Rectangular Air Duct Mufflers/Silencers in the Alan Manufacturing, Inc. Packless silencers contain no absorptive fill or media of any kind. 304 Sainless Steel. Rectangular silencers Show more; Showing 6 of 6 products. These codes require specific lengths of straight duct both upstream and downsteam of the test This web tool calculates recommended Sounpak rectangular silencer models for given physical, acoustical, and pressure specifications. Specifications The PULSCO Silencer Sizing Program incorporates the customer’s operating conditions, specifications and system description to select the most cost effective silencer configuration. Several silencers can be mounted into a rectangu-lar air duct system if there is requirement for bigger noise reduction. This gives a modular width of 250mm and with this combination gives high attenuation over a short silencer length. RECOMMENDED SPECIFICATION. Silencer module made of a rectangular silencer with 22-gauge galvanized steel housing. Systemair LDR 60-30 Rectangular Silencer 600mm x 300mm (Length 950mm) In stock Next day delivery available £346. 11 8. Stopson Ventilation & Duct Silencers, reduces noise level through the duct generated by any sound source, in ventilation and air conditioning installations cylindrical to rectangular transition ducts; The standard silencers SVC are suitable for pressure drops up to 700 Pa and a maximum temperature of 100° C, while maximum internal pressure Ruskin Sound Control Elbow Silencers feature: Compact Design Excellent broadband performance Wide variety of configurations Acoustically transparent perforated liner Acoustical grade fibrous media Characteristics: Acoustical attenuation across all eight octave bands Can be stacked to allow for banks of larger than maximum module size A sound attenuator, or duct silencer, sound trap, or muffler, is a noise control acoustical treatment of Heating Ventilating and Air-Conditioning (HVAC) ductwork designed to reduce transmission of noise through the ductwork, either from equipment into occupied spaces in a building, or between occupied spaces. Cong Gao 1, Chuandeng Hu 2, Bo Hou 3,4, Xiaoxiao Wu 3,4 and Weijia Wen 3,4 * 1 Tech X Academy, Shenzhen Polytechnic University, Shenzhen 518055, China 2 Shenzhen Fantwave Tech. Two-inch bottom flanges run the length of the silencer for fastening to the bot-toms of joists. Silencers shall be the product of IAC Acoustics. Co, Ltd, Shenzhen 518110, China Reactive Rectangular. Domestic Fans. The linings in the silencer don’t shed particles into the air. Fax * From name * The main factors that affect the acoustic performance are the silencer length, the Rectangular silencers are intended for silencing noise in Rectangular ductwork and a wide range of design options allow them to be integrated into any HVAC system with ease. 09kB) ISOVER Cleantec PLUS: Quality: 08/09/2022: Sound attenuator with removable splitters for rectangular ducts (pdf 485. Ready to Install. The main products include: Rectangular Duct Silencers, Circular Duct Silencers, Industrial Silencers, Vent Silencers, Cross-Talk Silencers, VAV Silencers, Tunnel Splitters, and Acoustic Louvres etc. The buffle width used in silencer is 100-200 mm, the packing material Popular types of Rectangular and Circular Duct Silencers for HVAC ducts include Elbow Dissipative, Straight Dissipative, Reactive (No-Fill), Elbow, and Straight, Cross-Talk, To attenuate low-frequency noise in square ventilation ducts, a tunable duct silencer consisting of composite Helmholtz resonators (HR) that precisely controlled by a step motor Tunable silencer for rectangular ventilation duct based on composite Helmholtz resonators. 13 9. RECTANGULAR Duct Muffler Air Silencers. The simple design, relatively low cost, and high level of performance flexibility make rectangular silencers a reliable and cost-effective choice. Straight rectangular duct silencers. ” Copies of the test reports are available upon request. %PDF-1. The diameter sizes d1> 315 mm require ordering the NSL male couplings before connecting the silencer to the ductwork. Flexible silencers are used by HVAC installers to attenuate noise generated by ventilation units or by air movement. Go. All sizes possible, material in galvanized steel, aluminum or stainless steel. Like our circular silencers, we offer rectangular inlet and discharge silencers that are compatible with axial and centrifugal fans. Perforated metal protects the glass fiber from erosion by the airflow. 01 Attenuators are also known and referred to as duct silencers, sound traps or mufflers. LARGO. Call Us Today 02920 858200 Work Time 9:00-16:30 Silencers are available in both cylindrical form to fit ducting and rectangular form to fit over or around noisy HVAC equipment, A duct silencer can be engineered specifically for use in clean environments, such as hospitals. There's also rectangular silencer circular duct silencers; rectangular duct silencer with attenuating baffles (splitters) Circular sound attenuators can be equipped with a pod (round baffle) or vertical baffles for better-attenuating properties– especially in diameters of 630 mm and larger. Duct silencers are also referred to as sound attenuators, sound traps or mufflers. The baffle consists of non-flammable mineral wool boards that absorb the acoustic energy. 3719 Data for rectangular and tubular type silencers shall be presented for tests conducted using silencers no smaller than the following cross-sections: Rectangular, inch: 24 x 24, 24 x 30, or 24 x 36 Tubular, inch: 12, 24, 36 and 48 5. B. Model features . Nylon Wall Plugs 8mm - Box of 100. Fantech Rectangular Attenuators are available in different models to suit a variety of applications and duct dimensions. Supply and return ductwork; Fan plenums and air handling units; Terminal boxes and mixing boxes; Fume and smoke exhaust; Alternative to acoustically Commercial Acoustics Rectangular Silencers Interceptor Liner (Optional) (Acoustically Transparent Erosion Prevention Lining) Suggested Specification for Rectangular & Circular Sound Attenuators Silencer Submittal Sheet Suggested Installation Guidelines. Price would be pleased to assist in developing a specification for your specific need. Model: IAC Quiet-Duct® Power-Flow Rectangular silencers. Square galvanized duct silencer with baffles for installation in between ducts. Silencer of absorption silencers, built of inner wool of mineral wool with surface layer and steel outer shell. Duct connected silencers. Ducting - ALU Tape. Silencers are constructed using an optimal combination of stainless steel and primed carbon steel for top of the line structural integrity and durability. It features: Solid Radius Nosepiece ; Quiet-Duct® Rectangular Silencers are suitable for conventional use and include low-frequency silencers constructed for dampening the octave bands 63 Hz, 125 Hz and 250 Hz; Clean-Flow™ Rectangular Silencers. Rectangular sound attenuators (duct silencers) are intended for sound attenuation in ventilation and air conditioning systems. Angle sound attenuator for rectangular ducts. Sound Attenuation. C. VAV boxes, rectangular ductwork; air handling units, generator radiator silencing, tunnel ventilation, general ventilation With Non-fibrous Liner: Cleanroom systems, hospitals, chemical laboratories, cooling towers (DM The dissipative splitter silencer is a common means for broadband noise attenuation in flow ducts such as ventilation and gas turbine systems where many higher order modes are cut-on. 1911 Duct Silencers Data Sheet Silencer Banks: A silencer of width "W" and height "H", which is larger than the maximum standard silencer dimensions of 48" x 48" (1219 mm x 1219 mm), can be fabricated as separate This can result in duct noise levels which exceed established standards and regulations. External Grilles. Flanges. These attenuators deliver good acoustic attenuation properties across a broad spectrum of sound frequencies while maintaining low air pressure drop through the attenuators. ” Copies of Rectangular Silencers. Types of Silencer. All our products meet American Standards and European Standards. Round Ducting. Related Products. Material: The silencer case is produced from 1 mm galvanized sheet and its baffle from 0,5 mm galvanized sheet. Sort By. Any specification change must be submitted Standard Rectangular Silencer/Sound Attenuator : Application. Filters | Purifiers. ‘All-weather Bidirectional’Duct Silencers >Back. In order to determine which type of duct silencer would be most compatible with the ventilation system in question, the allowable flow velocity subject to the flow rate and precise noise of the silencer will need to be Section 23 33 01 Duct Silencers Page 1 of 3 SECTION 23 33 01 DUCT SILENCERS PART 1 - PART 1 GENERAL 1. Round silencers are fastened with self-drilling screws or blind rivets, either of which are driven through the ductwork length HVAC duct silencers use porous materials such as glass wool, rock wool etc. Wide choice of baffle to minimize the sound level. Height. Through over half a decade of innovation, our pioneering range of duct silencers are among the highest performing models available A. When These units are circular or rectangular duct type silencers, installed quickly and easily to provide minimum air leakage. There is a cylindrical type of silencer for ducting, and a rectangular type 2. Angled sound attenuator with recessed connection for rectangular ducts. Add to basket Rectangular attenuators are available in different models to be suitable a variety of application and duct dimensions in different widths and heights. Furnish and install “Quiet-Duct” (rectangular) silencers of the types and sizes shown on the plans and/or listed in the schedule. 6 %âãÏÓ 6187 0 obj > endobj 6197 0 obj >/Filter/FlateDecode/ID[502F99704FA1BC47BF04F35353ECE4A1>]/Index[6187 235]/Info 6186 0 R/Length 92/Prev 4196161/Root Data for rectangular and tubular type silencers shall be presented for tests conducted using silencers no smaller than the following cross-sections: Rectangular, inch: 24 x 24, 24 x 30, or 24 x 36 Tubular, inch: 12, 24, 36 and 48 5. RNM Silencer Sheet RNM Data – Ultra-Low Velocity RNM Dynamic Sound Control RD rectangular duct silencers are available with sheet metal and fill materials to suit the needs of your project. Ideal for residential, commercial, and industrial use, they minimise fan noise and improve comfort. (SQLL-25), 50mm (SQLL-50) and 30mm (SQQL-30) mineral wool insulation. Test results are determined in a “duct-to-reverberation room” laboratory facility. Straight-through Silencers A. Standard Dimensions: 13" W x 9" H x 60" L Standard Inlet Openings: 6-inch or 8-inch Airflow: 50-800 cfm In-Joist Rectangular Silencers are standardized versions of the Kinetics KCRS line of rectangular duct silencers. The silencers incorporate glass fiber external to the duct connection size. 225. Together with matching fittings and ducts, silencers provide a complete system for building ventilation ductwork. This reduction in noise is achieved by transforming the sound energy into heat, when the sound wave through a maze of insulating material. ANSI S1. It also displays applicable data for the suggested silencers. The wide range of various types and versions allow adapting silencers to virtually any design requirements. Axial Fans. Static pressure loss of silencers shall not exceed those This destroys traditional reactive silencer performance • The classic large system problem: Low attenuation in the low to mid frequency range Higher modes reduce low frequency range of reactive silencer Dissipative silencer ineffective until mid frequency range Quiet-Duct ® Rectangular ES Silencer www. FACILE. Elbow. Fabrication 1. The silencer is made up of an inner casing of mineral wool with an outer surface and an outer cover of steel. VAV boxes, rectangular ductwork; air handling units, generator radiator silencing, tunnel ventilation, general ventilation With Non-fibrous Liner: Cleanroom systems, hospitals, chemical laboratories, cooling towers (DM Our Sound Attenuation Products are the best choice for solving the wide diversity of noise problems. Material. The A60 Rectangular Dissipative Silencer has a tapered pod, with high dynamic insertion loss at a standard The AM36 Rectangular Dissipative Silencer has a tapered pod, with medium dynamic insertion loss and medium pressure drop. All other fields that are blank will be treated as "don't care" values. x 6 in. All Dynamic Insertion Loss and Self A. tr Rectangular ducts are manufactured to meet the most stringent HVAC/Industrial specifications and quality standards. Rectangular Packless Silencers are the ultimate solution for ultra-clean environments and corrosive / flammable environments Ductwork; A60 Tapered Rectangular Silencer; Available in United States. Alan Manufacturing reduces Air Flow Noise without adding restriction. Both circular and rectangular sound attenuators, also A sound attenuator, or duct silencer, sound trap, or muffler, is a noise control acoustical treatment of Heating Ventilating and Air-Conditioning (HVAC) ductwork designed to reduce transmission of noise through the ductwork, either from equipment into occupied spaces in a building, or between occupied spaces. Furnish and install Kinetics Noise Control models KCRS, KCES and KCCS, rectangular straight, elbow and circular silencers of the types and sizes shown on the plans and/or listed in the schedule. Description. Size: 220x90mm. Quiet-Duct® Silencers A Complete Range of Engineered Sound Attenuators for Controlling the Noise in Air Handing Systems IAC Acoustics silencers were developed in response to the specific requirements from acoustics consultants, consulting engineers, building A. Rectangular 204 x 60 Hi Flow. Silencers. Browse Duct Mufflers in the Alan Manufacturing, Inc. It provides effective suppression of noise The Rectangular Duct Silencer is a compact and economical solution designed to meet stringent noise standards. Download Data Sheet Our Sound Attenuation Products are the best choice for solving the wide diversity of noise problems. Vibro-Acoustics can provide duct silencers to match project requirements for space and configuration limitations – virtually any size or shape is possible. er material shall be inorganic glass fiber of a proper Fill Rectangular silencers are designed to reduce noise in rectangular ductwork while minimizing system pressure drop. Plastic Duct Silencers 204mm x 60mm Hi Flow. Rectangular Ducting; Fume Extraction Hoods; Drip Trays; Fans & Actuators; Clearance Items. They are factory built to fit the duct, made in sections to fit under or through beams, with or without various types of acoustic media that control noise breakout and incorporate different duct silencers ; dampers, actuators; cav, vav, pav flow regulators; STRUT assembly system; insulated ducts and fittings ; rectangular ducts and fittings . 888. 774. Silencers shall be fabricated of all welded construction. Special silencer configurations available Nuaire offer duct silencers in a range of sizes, contact us today on 02920858500 or purchase direct from our Xpress website. 2. Rectangular models utilize acoustical splitters, sometimes called baffles, for broad-band attenuation. Gill Budd +44 (0) 1962 873000 +44 (0) 7905 366843 Rectangular Silencers. Rectangular duct silencers offered in three different series for increasing low frequency acoustic performance. Low-pressure loss through the silencer, with expected attenuation, is the design goal and essential to keep Flexible silencers are used by HVAC installers to attenuate noise generated by ventilation units or by air movement. 560. Quiet-Duct ® Rectangular L Silencer www. Rectangular silencers are silencers designed for rectangular ducts. Interior Quiet-Duct ® Rectangular ES Silencer www. e. Rectangular Acoustic Attenuators; Circular Acoustic Attenuators; Acoustic Doors. These codes require specific lengths of straight duct both upstream and downsteam of the test Lindab's rectangular air duct system is a complement to our circular air duct system, Lindab Safe, when space is tight or flows are very large. 8960291. Company Profile; Our Factory; Our History; The Tubular Duct Silencer reduces unwanted air flow noise and crosstalk conveyed into areas through ducting or piping. Best HVAC Duct Silencers, Sound Dampers, Acoustic Attenuators Manufacturers, Suppliers & Exporters in India. 2 REFERENCES A. An increase in duct cross sectional area will When project space limitations cannot accommodate straight silencers, Rectangular Elbow Film-Lined (“REFL”) silencers can be used to both reduce noise and control pressure losses. They A duct silencer or sound attenuator reduces noise in ventilation systems by using sound-absorbing materials. Co, Ltd, Shenzhen 518110, China 3 Quantum Science and Technology Center and Advanced Materials SMOKE system - Single-compartment smoke and heat control duct system includes spiral ducts, bends, reducers, T-pieces, take-off, flexible duct connectors and silencers. Got any questions? Name * E-mail address * Mobile Phone * Message * Subscribe. catalog including Item #,Item Name,Height,Width,Length,List Price Serving the HVAC industry since 1992 Call: (800) 435-2526 Email Menu Quiet-Duct® rectangular silencers are available for conventional applications including low-frequencies. bivvr qfk jgfazpdx lksgm bnc tfg spgj obnvaj tbwg ezqhnqt