supply, installation, testing& commissioning for improvement ofaeration system with diffuser , supply, installation, testing & commissioning of twin lobe roots air cooled blower. capacity 1800 m3/hr, pressure 5.5 kg/cm2 (5500 mmwc)with suitable motor rating 37kw/50hp rpm 1470 ie3 with complete accessories. inlet and outlet size 200 mm. , main header ss pipeline200 mm ss-304 sch-10 , branch line ss pipeline 80 mmss-304 sch-10 , inside threaded ss socket 25mm , stub-end for lap flange, bw, sch. 10s/5s, astm a 403 gr.wp304,mss-sp43200mm , flg.,lj, ff,150#, stockfinish, is2062, asme b 16.5, size 200mm , stub-end for lap flange, bw, sch. 10s/5s, astm a 403 gr.wp304,mss-sp4380mm , flg.,lj, ff,150#, stock finish, is2062, asme b 16.5, size 80mm , suitablebutterfly valve, astm a 126 class b,ms, epdm, pn 10, wafer, category -a, lever operated-size 200mm , suitable butterfly valve , astm a 126 class b, ms,epdm,pn10,wafer,category-a, lever operated - size 80 mm , cnaf gasket 3 mm thk , ell., 90 lr, 1.5d, bw, sch. 10s, astma 403 gr. wp 304, asme b16.9,size200mm , ell., 90 lr, 1.5d, bw, sch. 10s, astma 403 gr. wp 304, asmeb16.9,size80mm , giu-clamps , supply, installation, testing& commissioning of fine bubble air diffuser. specification: suitable ssi. size: dia 63 mm & 1000 mm long, flow range: 0-10 nm3/hr. effective area: 0.19 m2. sote%: 7 per meter depth. moc: silicone platinum curve. complete diffuser with connecting. , ss nut bolt with washer , civil work for air blower foundation in rcc and tin shed work. , rcc cube 200 mm x 200mm for diffuser line rest. , fabrication charges