replacement of different spares and rectification of pipe line of gaseous chlorination system at pathardoba w / s scheme under bmd phe dte.- dismantling and taken out of the damage pipe line and the old damage gaseous chlorination spares from the existing unit part by part by skilled gas plant technician. 2 supply & delivery of the following spares at the site:- 3 a ) ejector diapharms fittingscomplete set 4 b ) supply delivery of flexible copper connecting coil ( 1.5 mtr long each ) part no-1002 5 c ) supply deliveryof liquid trap –gas filter and and isolation valve ( c-9510 ) make:capital control / capco water / approved make 6 d ) 0-16 kg pressure indicator ( for gas line ) 7 supply of the followings upvc pipe fittings ( astmd-1785, schedule 80 ) at site :- make: as per phed approved vender list. 8 a ) 15 mmelbow90º 9 b ) 25 mm ball valve ( plastic ) 10 c ) 15 mmfta ( brass ) 11 d ) 15 mm ball valve ( plastic ) 12 e ) 15 mmunion 13 f ) 25 mmmta 14 g ) 25 mmfta 15 h ) 25 mmtee 16 i ) 25 mmelbow 90º 17 j ) 25 mmunion 18 k ) 25 mm socket 19 l ) 25 mmpipe schedule 80 20 m ) 15 mmpipe schedule 80 21 n ) 25 mm nrv 22 25 mm check valve ( brass ) make:leader / approved 23 supply and delivery at site needle valve working pressure 35kg / cm2 external 5 / 8 as per is 3224. 24 laying of upvc pipe on wall / floor / ground including fixing of all accessories in item no 3 and other necessary jointing materials as per direction. 25 25mm pipe schedule 80 26 15 mm pipe schedule 80 27 fitting fixing of supplied items of2, 3, 4, 5 & 6 in proper position and connected to layed pipe line ) to complete the flow systemincluding supplying of necessary joining materials , i.e., glue , pvc tapes etc necessary and lead gaskets ( d-100 & d-111 ) as per direction of eic 28 add: 18% gst 29 add: 1% cess