tender for procurement of shell & tube type oil cooler for 8.5 e-9 coal mills for gear box of unit no. 1 &2, ph-i, at sgtps, mppgcl, birsinghpur. , description as per schedule , complete assembly of shell & tube type oil cooler of lubricating oil system for 8.5 e-9 coal mill gear box technical specification shell fluid: oil (servo system 320) quantity: 75 lpm operating pressure: 3 kg /cm2 test pressure: 10 kg / cm2 capacity kcal.: 800 btu / min. oil inlet / outlet temp.: 60 / 50 deg. celsius oil inlet / outlet: 40 mm (flanged end) position: vertical mounted total length of cooler: 1440 mm (approx.) design temp.: 100 deg. celsius tube fluid: water;quantity: 90 lpm operating pressure: 1.2 kg / cm2 test pressure: 7.5 kg / cm2 no. of tubes: 30 nos. ;id: 10 mm ;od: 13 mm thickness: 1.5 mm water inlet / outlet temp.: 40 / 44 deg. celsius tube length: 1000 mm oil inlet / outlet: 40 mm (flanged end) tube material: copper (bs en 1057) design temp.:100 deg. celsius .