bids are invited for custom bid for services - repair work (supply of consumables and services) of fowler westrup make 6 kl tranformer oil filtration plant (tofp) at hvdc ballia station - vacuum pump overhauling kit with filters (service kit set, float valve, gas ballast valve) , heater wires for full heater banks with lugs , flow relay switch , safety relief valve , heater bank (mccb 100a) , mpcb (20-25a) with no-nc contact , nxl flowmeter , overhauling kit for roots pump , inlet pump oil seal , o-ring set , optical level monitor , roots pump engineer service charges , vacuum pump service charges , filter machine service charges , to & fro charges delhi to site & return