provision of acoustic barrier inside the a.h.u rooms & various cooling system allied works in b.y.l nair ch. hospital, mumbai cent-1 replacement of existing damaged acuostic insulation in the plant room with new acoustic insulation 2 supply & installation of under deck roof insulation with teak wood frame and 50mm thick tf quality themocol covered with foam sheet 3 supply & installation of g.i. class b condenser pipeline,-40 mmdiameter 4 supply & installation of ball valve on the condenser water pipeline –40 mm diameter) 5 providing and erecting two legged 6 providing thermal insulation to supply air ducting with19mm.thickness nitrile rubber 7 s & i of butterfly valve of size : 250mm dia on condenser line