bids are invited for wafer check flangeless valve gemarpts searched strings wafer check flangeless valve used in gemarpts check valve(api 594), swing type check valve, butterfly valves (v2) as per is 13095, check valve (v2) as per is 778, swing check type reflux valves for water works purposes gemarpts searched (single door pattern) (v2) as per is 5312 (part1), industrial result generated in gemarpts check valves-is:11733, gate, globe and check valves for water work purposes-is:778, swing check type reflux (non- return] valves for water work purpose - is 5312 relevant cartridge check valve categories selected for notification total quantity : 10