procurement of strainer and filter of hfo and ldo system and coal mill lube oil filter installed at boiler of 500mw unit, sgtps, mppgcl, birsinghpur. procurement of strainer and filter of hfo and ldo system and coal mill lube oil filter installed at boiler of 500mw unit, sgtps, mppgcl, birsinghpur. , hfo suction strainers for pump suction ( duplex type ) , mesh size:- 500 micron, material-ss 304, mesh rating-500 micron ( strainer bigger slot dia.: 374 mm, 384 mm, smaller slot dia.:204 mm, 215 mm, height-512 mm, strainers perforated sheet hole dia: 19.5 to 20 mm & sheet thickness-1.5 mm, both circumference end of strainers should be covered with ss strip ) , hfo filters for pump discharge ( duplex type ) , material-ss 304, mesh rating-500 micron ( filter bigger slot dia: 234 mm, 244 mm, smaller slot dia.: 114 mm, 125 mm, height-415 mm, filter perforated sheet hole dia: 19.5 to 20 mm & sheet thickness-1.5 mm, both circumference end of filters should be covered with ss strip ) , coal mill lube oil filter element ( simplex type ) , material: s.s. 304, meshrating-40 micron, flow-80 lpm, working press:5.2-8 ksc