In smelter plant (potline) of Balco, there are two compressor houses (Line 1 & Line 2).Compressor house Line 1 has seven HP compressors (202 m3/min, 6.5 bar, 1210 KW) & Compressor house Line 2 has five HP compressors (280 m3/min, 8 bar, 1600 KW) and two LP compressors (280 m3/min, 4.2 bar, 1100 KW).