138WE/L-75/2026-27

Supply & filling therminol 59 grade heat transfer fluid with chemical stability, low volatility, low vapour pressure, non-corrosive, non-toxic, thermal conductivity with respect to temp as specified and heat transfer system from (-) 85 Degree celsius to (+) 315 degree celsius for replacement / topping up for CHS installed at GH complete all as specified and/ or as directed by Engr-in-Charge. Make : HP Hytherm 500/IOCL/Valvoline/Sigma Thern-K or equivalent approved make as approved by GE. The properties of Heat transfer fluid are as under :- (a) Kinematic viscosity @ 40 degree celsius cSt : 1.44 to 4 Sqmm/s5 (b) Flash point(COC), Degree Celsius, Min : 132 degree centigrade (PMCC-ASTMD93) (c) Viscosity Index : 95 (d) Pour point Degree Celsius Max : (-) 68 degree celcius (e) Copper strip corrosion 3 Hr @ 100 degree Celsius (ASTM), Max : 1a (Non-corrosive) (f) Neutralisation number (Acidic Component mg KOH/g, Max) : <0.2mg KOH/g (g) Specific heat, Kcal/Kg Degree Celsius :- (i) at 100 degree celsius : 0.468 (ii) at 150 degree celsius : 0.511 (iii) at 200 degree celsius : 0.554 (iv) at 250 degree celsius : 0.602 (v) at 300 degree celsius : 0.650 (h) Thermal Conductivity, Kcal/Hr Mt Degree Celsius:- (i) at 149 degree celsius : 0.0954 (ii) at 204 degree celsius : 0.0911 (iii) at 260 degree celsius : 0.0869 (iv) at 316 degree celsius : 0.0768