supply, delivery and installation of fast-moving spares of mtu-10 under eastern mechanical division, p.h.e. dte. in the dist.- 24pgs(n). 1 supply, delivery at site of membrane element for ro unit, capacity 2000 lit/hr. suitable for installation in ro vessel diameter8 & length 40. as per following specification:- a)permeate flow: - minimum 12000 gpd (3.75 m³ /d) b) salt rejection :- (99.5% minimum) c) configuration : - spiral wound d) membrane polymer:- composite polyamide e) nominal membrane area:- minimum 365ft² (33.9m²) f) maximum applied pressure:- above 450 psi g) maximum operation temperature :- not above 122°f (50°c) h) ph range, continuous (cleaning) :- 2-11 (1-13)* i) maximum feed water turbidity :- upto 1.0 ntu j) maximum feed water sdi (15 mins) :- upto 5.0 k) maximum feed flow:- 75 gpm (17.0 m³ /h ) l) minimum ratio of concentrate to permeate flow any element:- 5.1 m) maximum pressure drop for each element:-10 psi (make- hydranautics /dow/toray/ge/any other approved make. 2 supply, delivery of uf unit for removing all undisclosed impurities including suspended solids, colidall impurities having feed pressure-5 bar, operating tran membrane pressure -2 psig, maximum backwash- 20 psig as per following specification:a) filtrate flow- 12.1-29.5 gpm 2.7-6.7m³/hr) b) filtrate turbidity-≥00.7 ntu c)virus removal-≥ 4 log d) bacteria removal-≥ 4 log e) configaration :- capillary ultrarafitration module f) membrane polymar:- hydrophilic poly thersulfone g) nominal membrance area :- 500 ft²(46m² ) or above h) fiber dimensions- id 0.031 (0.8mm) od 0.055 (1.4mm) i) pore size:- 0.02 micron or less j) typical filtrate flux range:- 35-85 gfd (59145l/m²/h) k) maximum applied feed pressure. 73 psig (5bar) l) maximum transmenibrane pressure - 20psig (1.4 bar) m) maximum backwash transtnembrance pressure :-20 usig (1.4 bar) n) instantaneous chlorine tolerance :- 200 ppm** p) maximum chlorine expossure :-200.000ppm-hrs q) maximum instantaneous feed turbidity :- 100 ntu r) maximum operating temperature:- 104° f s) ph operatin range:- 4.0-10.0 t) clraning ph range- 1.5-13.0 3 u) operating mode:-inside to outside filtration direct flow of crossflow. v) backwash flux-100-150 gfd (170-255 l/m²/hr) w) backwash duration -30-60 seconds. x) backwash frequency-20-60 minutes. y) chemical enhanced backwash frequrncy-0-4 ties per day z) chemical enhanced backwash duration-1-30 minutes z1) disinfection chemicals -na0cl, h₂o₂, clo₂, or , nh₂cl z2) cleani9ng chemicals -naoh, hcl, h₂so₄, or citric acid (make - hydranautics/dow/toray/imt/any other approved make) 4 installation and commissioning of ro unit. capacity 2000 lit/hr. suitable for ro vesel dameter 8 & length with through checking & testing complete. 5 installation and commissioning of uf unit for removing all undissolved impurities including suspended solids, colidall impurities having feed prussure-5 bar. 6 gst @ 18% 7 lwc @ 1%