tn-mm-1774 supply of oil coolers for main reducer lube oil system and support bearing lube oil system of ball tube mill bbd4772 unit 1 to 6 at sstps suratgarh supply of oil coolers for main reducer lube oil system and support bearing lube oil system of ball tube mill bbd-4772 unit -1 to 6 at sstps, suratgarh , supply items:- , twin oil coolers with three way valve for reducer lube oil system of ball tube mill bbd 4772. ( identical to s.nosle / 150 lpm / oa155 / 79 / 01-02 ) , one set consists of 2 nos of coolers and 2 nos of three way valve. , twin oil coolers for support bearing lube oil system of ball tube mill bbd 4772 as per attached technical specifications at annexure-i ( one set consist of 2 nos. coolers )