bids are invited for spares for the vacuum furnace total quantity : 31; 1 pressure transmitter model eq-pt 700 (0-2 bar) ( for hind high vacuum furnace , s.no 2887) 2 pirani gauge head model hps-2 for microvac gauge control unit ( for hind high vacuum furnace , s.no 2887) 3 penning gauge head png-3 ( for hind high vacuum furnace , s.no 2887) 4 ptc controller model- 2604 ( for hind high vacuum furnace , s.no 2887) 5 otc controller model-3216 ( for hind high vacuum furnace , s.no 2887) 6 l-20 thermostats nc ( for hind high vacuum furnace , s.no 2887) 7 n type thermocouple element ni cr si/ni si, n type , type simplex, standard ansi mc96.1 8 r type rigid thermocouple high alumina sheathed ( for hind high vacuum furnace , s.no 2887) 9 inconel tree assembly for hot zone 400 400 600mm for uniformity testing for hhv make vaccum heat treatment furnace ,s.no.2887 10 flange for n-type thermocouple for hhv make vacuum heat treatment furnance