tender for design, supply, erection, testing and commissioning of liquid based chlorine dosing system invedapatti town panchayat; 1 design, supply, erection, testing and commissioning of chlorine dosing system with following specifications: preparation tank & storage tank, type: 500 litres, cylindrical vertical flat bottom, size: (id x height x thk) mm: standard, lifting hook: suitable lifting device shall be provided on skid, usable capacity: preparation & storage: 525 ltr, liquid / solution to be handled: chlorine, material of construction: pp / lldpe, design pressure: atm+full of liquid, testing: leakage test water fill up, quantity: 01 no. dosing pump / transfer pump: make: rotomack/acl/roto pump, model: mmdp-1, type: mechanical diaphragm type, offered capacity: 0-750 lph, spm / ratio: 100 / 15:1, diaphragm: ptfe, flow control: manually, turn down ratio: 10:01, pump standard : mfg std, efficiency accuraty : 97% / + 3%, suction: flanged type, discharge pressure: 4.0 kg / cm2, prv set pressure: 5.0 kg / cm2, connection suction: 15 nb, connection discharge: 15 nb, material of wetted parts: pp, quantity: 02 nos. (1w + 1s). 2 pump drive motor: make: cgl / bbl, type: suirrel cage induction motor iec zone- ie 2, supply system: 3 ph. induction, ac, 415v +/- 10%, 50 hz +/- 5%, mounting / deg protection: b 3 (foot mounted) / ip 55, no. of poles / rpm: 4 poles / 1440 rpm, insulation class / temp. rise: class f / limited to class b, methoed of cooling: tefc, applicable standards: is 325, rating: 0.5 hp, motor frame type: as per din / iec 34-7, duty class: s1: 100% continuous operation, noise level (less than): 85 db (a) at a distance of 1 mtr. quantity: 02 nos. motor - pump shaft coupling: make: rathi couplings / equivalent, type: love joy / suitable flexible coupling, quantity: 01 no. fitting: as per ansi 16.11b, make: reputed & approved iso - 9000 certified supplier, type: 15 nb (sw), material of construction: pp. flanges: as per ansi 16.5b, size: 15 nb swrf # 150, material of construction: pp / upvc, inlet terminal flanges / tank flanges: 15 nb swrf # 150, outlet terminal flanges / companion flanges: 15 nb swrf # 150, quantity: at actual. pulsation dampner: type: volume bottle type, capacity: 1.50 litre, moc: pp / upvc, quantity: 01 no. pressure gauge with isolation valve: make: waree / wika / std, type: bourdon sensing type, mounting: direct bottom, dial size: 100 mm, moc: ss, accuracy: 1.60%, range : 0-14 kg / cm2, quantity:01 no. nrv:type: lift check type, end connection: 15 nb swrf # 150, moc: pp / upvc, quantity: 01 no. 3 features & service conditions. valve attachment mounting: according to enis o5210, body material: aluminum alloy, enclosure protection: weather proof, ambient temperature: -10c to +55c, colour code: white aluminum ral-9006, coating: double layer powder coating / dry powder coated, life time: design life according to en 15714-2, applicable directives. ec machinery:according to 2006/42/ec, low voltage: according to 2006/95/ec, emc: according to 2004/105/eec.