![How do Ubbink ductwork systems achieve class D/ATC2 air-tightness when installed?](https://cdn.ubbink.com/int/getmedia/cbdfb007-4b2a-4200-a0f7-495cdf2b715c/Mechanical-connections-header.jpg?width=1440&height=720&hash=QZGL0ccb48c%2b%2bg0yejWbducPg4C6iHIsFsHBI2%2f2yC8%3d)
Ventilation
Ubbink ductwork systems achieve class D/ATC2 air-tightness when installed by using purposed-designed mechanical connections, which are easy, quick and safe to install without ‘screwing and gluing’ and/or using adhesive tape. The reproducible high quality means even inexperienced installers can install an airtight ductwork system.
The below plastic connection mechanisms are class D/ATC 2 airtight (Air Excellent up to system pressures of +/- 2,000 Pa and Aerfoam up to +/- 200) can be installed in a few seconds!