High-performance silencers with outstanding acoustics at a competitive price

Based on feedback from customers and designers, ETS NORD’s NTP and NTF circular duct silencers are considered very competitive. The M1 classification for clean ventilation products further enhances the quality of the NTP silencers. Maintenance is also straightforward thanks to the silencing materials: NTP uses polyester, while NTF uses a glass wool board covered with fiberglass fabric. The fiberglass fabric prevents mineral fibers from entering the duct system.

ETS NORD’s NTP and NTF silencers are available in the MagiCad product library.

Excellent sound attenuation makes designing easier

High sound attenuation capacity helps control the noise generated by air handling units and other devices, ensuring that even today’s strict room-level noise requirements are met.

A higher-quality silencer also provides flexibility for design and installation. Once installation begins, it may turn out that there is very little space above the suspended ceiling. Even so, the system must fit into place.

Thanks to better attenuation, a shorter silencer can often be used. A shorter product is easier to install, while still meeting the design criteria.

The product range is broad enough to meet diverse needs, encompassing different sizes, various lengths, and even openable silencers. All silencers have been designed to be as compact as possible, both structurally and dimensionally.

Cost efficiency is considered as well

The silencers are not built with perforated sheet metal for the inner duct. This internal design makes them lighter, thereby making them easier to install. At the same time, the product becomes more cost-efficient, improving competitiveness for both ETS NORD and its customers in construction projects.

Energy consumption of the ventilation system has also been minimized. NTP and NTF silencers feature very low pressure drops and an airtight outer casing.

More information about silencers:

• Excellent sound attenuation properties
• Easy to clean with sweep-resistant, through-cleanable materials
• NTP: polyester silencer with M1 cleanliness classification for air-handling components
• NTF: mineral wool silencer with Cleantec glass wool board. The fiberglass fabric coating prevents fibers from entering the duct system
• Openable models also function as service and cleaning hatches
• Largest sizes, Ø400, 500, and 630, are equipped with attenuation baffles → further improving attenuation properties
• Internal structure → easy installation, low pressure loss, airtight casing
• Very competitive price