supply installation testing commissioning of automation system for pac dosing at stp setor 25 rohini ( re-invite ) - 1 automatic polymer ( pac ) dosing system with complete automation with reference to flow based dosing arrangement-duly wired control panel with plc system will be provided for smooth operation of the dosing pumps [ pp dosing pumps-02 nos. ( 1w+1s ) ] pump type: dosing pump / max flow rate: up to 60 lph. maximum pressure: max 08 kg / sq. cm2. operating voltage: 180-280 v. input: 4-20 m amp. indicator: led, with data monitoring. make :-milton roy grundfos / equivelent. make of plc scada system for automation: abb / siemens / mitsubishi / any djb approved make 2 ultrasonic flow transmitter at existing parshall flume sitrans probe lu: 2-wire, loop powered ultrasonic transmitter for level, volume and flow monitoring of liquids in open channels, storage vessels and simple process vessels. enclosure / cable inlet: plastic ( pbt ) , 2 x ½ npt ( no cable glands supplied ) range / transducer material: 6 meter ( 20 ft ) , pvdf copolymer process connection: 2 npt [ ( taper ) , ansi / asme b1.20.1 ] communication / output: 4 to 20 ma, hart. make:- siemens / krohone marshal / any djb approved make. 3 level switch and level gauges at hdpe storage tank level switch : material: polypropylene ( pp ) temperature range: -40°f to 221°f [ -40°c to 105°c ] pressure: 100 psig [ 6.9 bar ] level gauge type: tubular moc of wetted part: ss-304 operating temperature: minimum 100 °c process connection: ½” npt make:- any djb approved make. 4 piping and cable tray, for dosing before, after pst and after aeration 5 cables and accessories 6 erection and commissioning