Fabdec Limited are a UK pioneer and manufacturer of Duplex stainless steel for a variety of industry sectors. Established in the dairy, refrigeration and brewery industries along with innovators of unvented water heater cylinders for domestic and commercial applications. In 2015 Fabdec launched the revolutionary new 3S technology - the 'Self-Sustaining System' which is the first choice for internal expansion for unvented cylinders. This offers a compact and limited maintenance option whereas others rely on unsightly and inconveniently packaged expansion vessels and the necessity of recharging them over the product life cycle. The 3S technology eliminates that by the use of a patented Venturi device that introduces no moving parts so wear and tear is not a problem either. View the innovation on www.fabdec.com