Dedatek Yapı İzolasyon İç ve Dış Ticaret Ltd. Şti.
İstanbul · Sarıyer
Dedatek Yapı İzolasyon İç ve Dış Ticaret Ltd. Şti.
Dedatek is an acoustic-engineering firm that manufactures silencers and applies industrial acoustic enclosures for generators, HVAC, blowers and exhaust lines.
About
Dedatek Yapı & İzolasyon is an engineering firm with over 25 years of experience in sound insulation and room acoustics, delivering professional acoustic solutions across a wide range of applications — from residential and office spaces to recording studios and industrial facilities.
We bring undesired noise from indoor and outdoor sources under control through scientific methods, creating comfortable living, productive work, and enjoyable listening environments. Through our acoustic treatment services we optimise sound reverberation, restore the natural acoustic balance of a space and enhance sound quality.
With our specialist team in inter-floor and inter-partition sound insulation systems, room acoustics design, vibration control, project engineering and consultancy, we are with you at every stage of the project. Our mission — to create acoustic conditions tailored to the purpose of each space through a scientific and technical approach; to bring silence to life as an engineering discipline.
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Products
Industrial Acoustic Enclosure
An industrial acoustic enclosure is a sandwich-panel shell that fully or partly covers a noisy machine, with a steel outer face and a perforated absorptive inner face. It is designed with a service door, viewing window, ventilation silencer and vibration mounts. Ambient noise reduction is 15–35 dB. Sandwich: 1–2 mm sheet, optional EPDM/PVC membrane, 50–100 mm glass/mineral wool, perforated inner sheet; thickness 50/75/100/150 mm. Insertion loss 15–35 dB; shell Rw 30–45 dB; −20 °C / +120 °C; fire A1/A2; IP54/IP65. Uses: generators, compressors, cooling-tower fans, pumps, blowers, CNC, presses, injection lines. Certificates: CE, EN ISO 11546.
Modular Acoustic Panel Systems
Modular acoustic panel systems are factory-made sandwich panels assembled on site for fast industrial installation. Standard 60 / 100 / 120 cm modules give insertion loss 20–30 dB and NRC 0.80–0.95. Module sizes 60×240, 100×240, 120×300 cm; thickness 50/75/100/150 mm; fill mineral wool 60–100 kg/m³; faces galvanized, stainless, painted, Magnelis; Rw 30–45 dB. Module types: sandwich panel, acoustic service door, acoustic window, intake/discharge silencer module, corner and roof modules. Uses: machine enclosures, production-line partition walls, outdoor machine barriers, test labs, control cabins.
Silencer Production
Silencers reduce noise in ventilation, exhaust, generator-outlet and industrial process air ducts while keeping pressure drop low. Absorptive, dissipative, reactive or combined types give insertion loss of 15–50 dB. Types include mineral-wool absorptive, cellular resonance, hybrid, splitter/lamella, round (tube) and high-temperature stainless exhaust silencers. Insertion loss 15–50 dB; pressure drop 30–150 Pa; flow 5–25 m/s; temperature −20 °C / +500 °C (exhaust); materials galvanized, stainless steel, aluminium; fill mineral wool 80–120 kg/m³. Uses: genset intake and exhaust, HVAC ducts, cooling-tower fans, blowers, compressors, vacuum and dust collection.
Services
Acoustic Silencers (Duct, HVAC)
Splitter and reactive silencer systems for HVAC ducts, generator intake/discharge, fans and exhaust lines. Airborne noise reduction 25–40 dB. Splitter (absorptive): parallel packed plates at 100–200 mm spacing, standard for HVAC and generator intake. Reactive: Helmholtz resonator, high temperature for exhaust (above 400 °C). Combined: splitter + reactive. Selection: airflow, frequency (generator 250–2000 Hz, fan 500–4000 Hz), duct section (8–10 m/s), fire class A1/A2, temperature. Targets: 25–40 dB airborne, extra pressure drop <50 Pa, velocity <10 m/s. Certificates: EN ISO 7235, EN 13501-1, ISO 14163.
Blower Sound Insulation
Acoustic cabin, intake/discharge silencers and vibration damping for industrial air blowers and fans. Reduction 25–40 dB. Roots, screw, turbo and centrifugal types; typical 80–100 dBA, high frequency 1000–4000 Hz. Sectors: wastewater, paper, cement, pneumatic conveying, textile, agriculture/fertilizer. Components: sandwich-panel cabin, atmospheric intake splitter, discharge acoustic labyrinth, elastomer mounts, Rw 35–40 dB acoustic door, line wrapping. Targets: cabin Rw 30–42 dB, airborne 25–40 dB, environmental 45–55 dBA, workplace 75–80 dBA. Panels and silencers EN 13501-1 A2-s1,d0, EN ISO 7235, EN ISO 11820. Typical duration 2–4 weeks.
Generator Sound Insulation
Generator sound insulation reduces 95–110 dBA diesel and gas generator noise by 45–55 dB with a multi-layer cabin, splitter silencer, acoustic door and vibration-isolated base. Field example: a 1250 kVA diesel generator in Istanbul with multi-layer wall + 80 mm stone wool + double plasterboard + membrane + 2 m splitter silencer + reactive exhaust silencer + 44 dB Rw acoustic door documented 48 dB net reduction. Intake/discharge splitter silencers add 25–40 dB. Materials EN 13501-1 A2-s1,d0; BS 476 Class 0; UNI 9175 Class 1IM; silencers EN ISO 7235. Typical duration 2–4 weeks. Environmental limits stated: 45 dBA night, 55 dBA day.