India's most trusted manufacturer of custom-engineered industrial silencers for gas turbines, steam systems, compressors, and process industries since 1988. Compliant with global standards. Delivered on time.
Every silencer is custom-engineered for your specific operating conditions — pressure, temperature, flow rate, frequency spectrum, and space constraints.
High Pressure
Designed to attenuate high-velocity steam discharge noise at safety valves, control valves, and blow-down systems in power plants and refineries.
Process Industry
Engineered for control valves, safety relief valves, and flare systems in chemical, petrochemical, and gas processing plants.
Gas Turbine
Complete exhaust systems for gas turbine power plants. Includes exhaust silencer, expansion joint, interconnecting duct, and exhaust stack.
Intake System
High-performance intake air filtration and silencing systems that reduce compressor noise while maintaining optimal air quality.
Compressor
Precisely tuned silencers for reciprocating and centrifugal compressors — eliminating tonal noise at fundamental and harmonic frequencies.
Defence / Aerospace
Specialized acoustic silencers for defence and aerospace test facilities, including wind tunnel inlet/outlet and engine test cells.
Our in-house acoustic engineering team uses industry-standard software to model, simulate, and validate every silencer design before fabrication begins.
Every project includes insertion loss calculations, pressure drop analysis, and frequency-specific attenuation curves — fully stamped and traceable.
Our Chennai facility includes a dedicated test bay for performance validation — ensuring every silencer meets specified insertion loss before shipment.
ASME Section VIII, PED 2014/68/EU, API, IS codes — our designs are accepted by TUV, Lloyds, BV, DNV, and other leading third-party inspectors.
Our engineers travel to site for critical installations. Post-commissioning noise measurements provided on request.
Our manufacturing capabilities cover the widest range of industrial silencer requirements in India.
From power generation to defence, our industrial silencers meet the most demanding application requirements.
SISCO Energy (formerly Acoustics India) holds India's widest portfolio of quality certifications for industrial silencer manufacturing.
:2015 Quality Management System — the globally recognized standard for consistent product quality and customer satisfaction.
:2015 Environmental Management System — committed to sustainable manufacturing with minimal environmental impact.
:2018 Occupational Health & Safety — ensuring the highest safety standards for our workforce and visitors.
:2022 Information Security — your project data and technical drawings are protected under certified information security protocols.
:2018 Energy Management — demonstrating our commitment to energy efficiency throughout our manufacturing operations.
Rev D — Aerospace Quality Management System certification, enabling us to supply to defence, space, and aerospace customers worldwide.
A structured engineering process that ensures every silencer performs exactly as specified, on time and on budget.
Share your operating conditions — pressure, temperature, flow rate, frequency spectrum, space, and noise targets.
Our engineers model the system acoustically, compute insertion loss, and optimize the silencer design to meet your target dB(A).
We submit GA drawings, material certificates, and acoustic calculations for your review. TPI coordination arranged as required.
Manufacturing at our ISO-certified Chennai facility with full QA documentation, hydro testing, and NDT inspection.
Packed to international standards. Our engineers available for site installation and commissioning noise measurement.
Common questions from engineers, procurement teams, and EPC contractors evaluating industrial silencers.
We need: fluid type (gas/steam), mass flow rate, inlet temperature and pressure, outlet pressure, pipe size and schedule, available space envelope, and your target noise level (dB(A) at specified distance). Our technical datasheet covers all required fields. We also need applicable design code (ASME, PED, IS).
Standard silencers: 6–10 weeks from drawing approval. Complex gas turbine exhaust systems or wind tunnel silencers: 12–20 weeks depending on size and material. We offer expedited manufacturing for urgent projects — contact us to discuss. All schedules are confirmed at order stage.
Yes. We coordinate with all major TPI agencies including TUV Rheinland, Lloyd's Register, Bureau Veritas, DNV, and PDIL. Our factory is pre-approved with most agencies. Witness inspection at our facility in Chennai can be arranged at any stage of manufacturing.
Yes. We manufacture cryogenic silencers for LNG, liquid nitrogen, and liquid oxygen systems down to -196°C. Materials include SS 304L, SS 316L, and 9% Nickel steel. Low-temperature impact testing (Charpy) is performed on all materials per applicable code requirements.
Our silencers achieve between 5 and 45 dB(A) insertion loss depending on type and application. Steam vent silencers typically achieve 30–45 dB(A). Compressor blow-off silencers achieve 25–35 dB(A). For applications requiring very high attenuation, multi-stage silencer arrangements are designed.
Yes. We have exported to the Middle East (UAE, Saudi Arabia, Kuwait), Southeast Asia, Africa, and Europe. We handle all export documentation including commercial invoice, packing list, certificate of origin, and any country-specific inspection certification. DDP, CIF, and FOB terms available.
Yes — we specialize in complete exhaust system packages: exhaust duct, silencer, expansion joints, support structure, bypass stack, and main exhaust stack. This single-source supply simplifies your procurement, reduces interface risk, and improves delivery coordination. We've supplied complete systems for GE LM2500, LM6000, and Frame series turbines.
We use mineral wool, ceramic fiber, and glass fiber fill depending on temperature. All absorption media are retained in stainless steel perforated inner shells to prevent wash-out in high-velocity applications. For hygienic or pharmaceutical applications, alternative absorption media with cleanability are available.
Share your operating conditions and noise targets with our acoustic engineering team. We'll respond with a preliminary recommendation within 48 hours — no commitment required.
Our team handles technical B2B enquiries from EPC contractors, consultants, plant engineers, and OEM procurement teams. We respond to all enquiries within one business day.
For urgent enquiries or large projects, call us directly. For standard enquiries, use the form — include as much operating data as possible to accelerate our response.
SISCO Energy Private Limited (formerly Acoustics India Private Limited) is India's leading custom industrial silencer manufacturer with over 35 years of engineering excellence since 1988. Our Chennai facility designs and manufactures industrial silencers for steam venting, gas turbine exhaust and intake, compressor applications, process gas systems, and specialized defence and aerospace test facilities.
All silencers are designed to applicable codes — ASME, PED, IS, API — and are fully documented with acoustic engineering calculations, insertion loss curves, and pressure drop analysis.
We are India's most experienced supplier of complete gas turbine exhaust systems, including exhaust ducts, silencers, expansion joints, HRSG bypass stacks, and main exhaust stacks. Our systems are compatible with all major gas turbine OEMs including GE, Siemens, Solar Turbines, Man Energy, and Mitsubishi Hitachi Power Systems.
Every gas turbine silencer package includes acoustic performance certification, third-party inspection co-ordination, and post-commissioning noise measurement support.
Our compressor silencer range addresses suction, discharge, and anti-surge blow-off noise for both reciprocating and centrifugal compressors. We provide full pulsation analysis per API 618 and design reactive / tuned silencers that attenuate tonal noise at fundamental and harmonic frequencies without excessive pressure drop.
Available in all pressure ratings (ANSI 150# through 2500#) and materials (CS, SS, Duplex, Inconel), our compressor silencers meet the most demanding oil & gas specifications.