tender for repair and maintenance at m.saveriyarpuram amma unavagam-- 1 medical gas copper pipeline arrangement to hang on the wall of socket type connection installation of seamless cleaned and degreased non arsenical phosphorous gas copper pipe line with saddles complete with brazing work including all copper fitting (tee, elbow, reducer, coupling). the copper pipelines should be tested suitable for a steam of working pressure of 17.34 kg. / cm2 (17 bar) and confirm to bs 864 standard with specially made for brazed socket type connection. the medical gas copper pipeline should be tested as per standard and commissioning after painting as per international code no. is 2379/1963 table-v. the pipelines installed at the various wings and floors etc., complete as directed by the departmental officers as per is code 12827 / 1989 & iso 7396 / 1987 specification. 2 paving the floor with best quality vitrified tiles of following size and variety conforming is 15622 with water absorbtion less than 0.08% of approved colour and shade laid over cement mortar bed of 20mm thick in cement mortar 1:3 (one cement and three crushed stone sand) with required cement slurry and mortar plasticizer in all floors and the top pointed with water resistant tile epoxy grout etc., complete complying with standard specification and as directed by the departmental officers. (the make and brand of the tiles should be got approved by executive engineer before use on works) 3 supplying and erecting in position of following liters capacity industrial model reverse osmosis water-cum-purifier to deliver potable water with world health organisation (who) standards with following accessories.(a) ms skid - 1 no. (b) media 11054 no. vessel with 20 nb multiport valve (with media pubble and fine sand and activated carbon filling) set (c) feed pump 0.50 hp – 1 no.(d) vertical pump 2-9, 2.00 hp / single phase – 1 no. (e) membrane 40 x 40 filmtech (or) equilaents / osmonic (usa) - 1 no. and membrane pressure vessel 40 x 40 -1 no. & pressure gauge - 2 nos. (f) flow meter - 1 no. 20” filter with housing - 1 no., low pressure switch - 1 no., level switch - 1 no. & necessary cpvc pipes and fittings. the system shall be provide with two panel control system with necessary stainless valves and fittings and float control etc. the rate should be inclusive of all civil works, wherever necessary to install the system in position and intact.