Acoustic insulation is a set of standards and procedures that aim to provide appropriate isolation of a place for the purpose of reducing or limiting the annoying sounds from various audio sources. Our company provides acoustic shelters and weather elements of all their different types according to international specifications and through it we can overcome the noise problem where we provide acoustic shelters that achieve a standard sound level of no more than 60 decibels as our group provides cabins to protect units from weather factors. DLG group also specialize in Silencers. The silencers are our specialty, from the ones for industrial fans or ventilation plants for civil and vessel purposes, to the ones for boiler exhausts ducts, gas turbines and engines. We have designed and supplied silencers for the most important and luxurious passenger ships and for the greatest yacht built in Italy till now. We also design and supply silencers for vent to atmosphere, for steam and compressed gas, as air, methane or nitrogen. We have developed and positively tested a kind of reactive silencer, working really well on boiler exhausts, too. We are also taking part, with some other important Companies, to an EEC project, with the purpose of tone down noise of engines by ANC techniques.