WBPWD/AE/NRSH/NIT-24/2025-26_2

(a) Priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

(A) Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand parpering etc. in cluding using of approved putty etc. on the surface , if necessary.

(b) On steel or other metal surface: .

(1) With super gloss (hi-gloss).

(ii) Two coats ( white in shade ).

Applying Anticorrosive tape with pipokate tape of 4 mm thickness and one coat of synthetic black enamel paint, all complete as per direction of the Engineer-in-charge. 200 mm

Supply,erection,and testing of MS heavy grade pipes conforming to IS:1239/IS:3589 with accessories including all fittings viz tees, elbows, reducers, flanges, rubber gaskets, G.I.nuts, bolts and washers. The scope includes excavation of all kind of soil, refilling, ramming, shoring, removing the excavated surplus material, providing adequate support to the pipe and making it good. Rate shall include for dewatering, if necessary, to execute the work. The top of pipe shall not be less than 1.0m below ground level at any point. Wrapping and coating to be done by applying protective primer @100gm/sqm, there after wrapping with with 2 layer of coating materials of 2 mm thick by the rmo fusion process. Overlap of coating shall be maintained at 25mm 200 mm

Supply, erection and testing of heavy grade(class-C) pipes conforming to IS 1239 / IS-3589 including all fittings viz. tees, elbows, reducers, union, flanges, rubber gaskets, GI nuts bolts, washer and structural steels for pipe supports. Hanger support with anchor fasteners and clamps shall be supplied to fix the pipes on ceiling wall etc. including supporting/fixing the pipe on floor / wall /ceiling with clamps, hangers (using anchor fastners) as per specification. Cutting of floors, walls etc and making it good after erection of pipes shall be of vendor's scope. Necessary painting with 2 coats of primer and 2 coats of synthetic enamel paints to be done and supply of paints shall be with vendor's scope. 200 mm NB x 6 mm thk

Supply & installation of automatic 25 NB Air Release valve

Supply and installation of swinging type hose reel drum fabricated from 14 SWG CRCA sheets painted with red colour stove paint 2 coats over 1 coat of primer with 30 m long 20 mm dia rubber hose pipe with 10 kg/cm2 working pressure with SS self closing shut-off nozzle of 5 mm outlet fixed on wall with dash fastners and necessary shut off valve.

Providing and fixing butterfly valve as per BS: 5155 (Wafer type) matching flanges complete with nuts & bolts. Size 100 mm NB

Providing and fixing butterfly valve as per BS: 5155 (Wafer type) matching flanges complete with nuts & bolts. Size 80 mm NB

Supply & installation of dial type pressure gauge of suitable pressure range, fitted with damper arrangement and isolation ball valve as shown in respective drawing. The diameter of dial shall be 150 mm preferably filled up with glyserine. All other necessary fittings to be supplied to erect the gauge on top of the riser.

Supplying, fitting & fixing ball valve as per BS 5351 and make bearing ISI marking all complete as per direction of the Engineer-in- charge. 25 mm

Repairing/Rectifying of CI Gate Valve as per IS:14846(PN16) including matching flanges, nuts, bolts and gaskets : 200 mm

IRepairing/Rectifying of CI Gate Valve as per IS:14846(PN16) including matching flanges, nuts, bolts and gaskets :150 mm

IRepairing/Rectifying of CI Gate Valve as per IS:14846(PN16) including matching flanges, nuts, bolts and gaskets :80 mm