bids are invited for spares for control valves spares for control valves spares tyre for tyre coupling, cast copper alloy screw down bib taps and stop valves for water services as per is 781, diaphragm type valves for general purpose - is 11791, swing check type reflux valves for water works purposes (single door pattern) (v2) as per is 5312 (part1), flush valves and fitting for water closets and urinals, copper alloy gate valve for waterworks purpose as per is 778, foot valves for water works purpose as per is 4038 (latest), m.s stopper for traffic control (portable barrier), spare add on battery packs for transreceiver - handheld, plastics bib taps pillar taps angle valves and stop valves as per is 9763:2000 (latest) relevant proportional valves - bhel total quantity : 2