With over 75 years of experience and 10,000 successfully completed projects worldwide, Glaunach has established itself as a global market leader in the field of high-performance blow-off silencers. We proudly deliver our products to customers across Europe, North America (USA & Canada), Australia & New Zealand, Latin America, Africa, and many parts of Asia. Glaunach products meet all major international codes and certifications for pressure equipment, including: • PED (European Pressure Equipment Directive) • ASME BPVC (Boiler and Pressure Vessel Code, USA) • CRN (Canadian Registration Number) • JIS (Japan Industrial Standards) • AS/NZS 1200 (Australia & New Zealand) • and more. Vent silencers, also referred to as industrial gas diffusers, noise suppressors, or blow-off silencers, are crucial for controlling high-pressure gas noise during discharge events. They use a combination of flow control and sound absorption to reduce harmful noise levels, protecting both personnel and the environment. Vent silencers are used in many industrial settings involving pressurized gas discharge. Typical applications include: • Steam Systems (power plants, boilers) • Compressed Air (pneumatics, compressors, relief valves) • Natural Gas / Methane (pipelines, refineries) • Oxygen (gas production, medical systems) • Nitrogen (chemical processes, inerting) • Hydrogen (fuel cells, energy storage) • Other Inert Gases (Argon, Helium, CO₂ — for labs, food processing) Glaunach also specializes in custom-engineered Dump Tubes for ORC (Organic Rankine Cycle) systems used in waste heat recovery, renewable power generation, and industrial energy optimization. These discharge pipes — also called blow-off tubes or pressure relief exhaust tubes — are critical for safely releasing high-pressure working fluids (such as R245fa or other organic fluids) in the event of system overpressure or emergency shutdown. We provide high-quality Dump Tubes to ORC installations worldwide, delivering: • Precise engineering for each system’s specifications • High-pressure capability and corrosion resistance • Compliance with global standards (PED, ASME, etc.) Whether your ORC system is in Europe, North or South America, Asia, or Australia, Glaunach ensures safe and reliable dump tube solutions. Glaunach delivers reliable, certified, and noise-optimized solutions — from vent silencers for high-pressure gas to Dump Tubes for ORC systems and energy plants. Custom designs Global delivery Fast support and engineering expertise

To properly design and calculate a silencer, we require the following information: • Medium – e.g. steam, compressed air, natural gas, hydrogen, etc. Note: We do not supply silencers for combustion gases or liquids. • Operating pressure at the silencer inlet – in barg or bara / psia or psig – optionally also minimum and maximum operating pressures • Medium temperature – in °C / °F • Mass flow or volume flow – including specification of physical conditions (standard or operating conditions) • Outlet conditions – e.g. downstream pressure or ambient pressure • Acoustic requirements – desired noise reduction in dB(A) or permissible residual sound level – for sound pressure level, please specify the distance – optionally, frequency range or key measurement points • Installation and mounting conditions – vertical or horizontal – space limitations, flange sizes, installation position • Material specifications and standards – e.g. stainless steel, Pressure Equipment Directive (PED), ATEX, customer standards The more complete your information, the more accurately and efficiently we can tailor the silencer to your specific application.

A vent silencer reduces noise from high-pressure steam or gas venting in industrial systems. A muffler, by contrast, is used in vehicles or engines to reduce exhaust noise. Glaunach manufactures only vent silencers.

Yes, Glaunach GmbH is ISO 9001 certified. The company has operated a quality management system in accordance with ISO 9001 since 1993, when it was first certified by Lloyd’s Register. This system has been continuously monitored and re-certified annually ever since.

In recent years, some of our customers have outsourced internal processes and require their partners to exchange documents - such as proposals, project files, or technical data - directly via their own data management systems. Glaunach is happy to support this with an Electronic Data Management Service (EDMS). However, the effort involved has increased significantly due to the wide range of systems and specific requirements. To handle this reliably, we rely on specially trained staff. To ensure maximum cost transparency and fairness for our customers who manage their data within their own systems, we charge for this service separately – already during the quotation phase and regardless of whether an order is placed. Traditional data exchange via email remains free of charge. For more information, please click here (https://www.ventsilencer.com/edms)