Mansfield Pollard recently successfully completed the design, manufacture and installation of six double drop-over type weather proof acoustic enclosures housing 12 off P1250 diesel engines. The enclosures were supplied with inlet, outlet attenuation and roof mounted exhaust silencers. The silencers were designed to reduce the engine noise levels to 75dBA @ 1m. All enclosures were factory fitted with small power and electrics prior to delivery to site. This enabled the tight installation timescales to be completed to the clients schedule of works.