Replacement of Condenser and Cooling Tower Pipe Line and Allied Works at Tirupati Airport

Cat (A) -Items to be supply and installation

Supplying, fixing, testing and commissioning of condenser water pipes of following sizes of MS 'C' class confirming to relevant IS along with necessary clamps, vibration isolators and fittings such as bends,tees etc.but excluding valves, strainers, gauges etc. adequately supported on cement concrete blocks duly painted with one coat of primer & two coats of green enamel/approved shade as per specification and as required complete in all respect. Note:-The Pipes size 150mm & below shall be M.S. 'C' class as per IS : 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35mm thick M.S. Sheet for pipes upto 350 mm dia. And from minimum 7mm thick MS sheet for pipes of 400 mm dia and above.

350 mm dia.

250 mm dia.

200 mm dia.

150 mm dia.

100 mm dia.

65 mm dia.

Supplying, fixing, testing and commissioning of following sizes of GI 'C' class pipes confirming to IS 1239 along with necessary clamps, vibration isolators and fittings such as bends,tees etc.but excluding valves, strainers, gauges etc. adequately supported on cement concrete blocks duly painted with one coat of primer & two coats of enamel/approved shade as per specification and as required complete in all respect.

50 mm dia.

40 mm dia.

25 mm dia.

Supplying, fixing, testing and commissioning of Balancing valve (Manual) with C I body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled water/hot water circulation as specified as per Technical Specifications complete as required.

250 mm dia.

Supplying, fixing, testing and commissioning of Butterfly valve (Manual) with C I body SS disc nitrile sheet & O - ring & PN 16 pressure rating as specified as per Technical Specifications complete as required.

350 mm dia. (gear type) ( in the existing line by draining, cutting the line and fixing)

250 mm dia. (gear type)

100 mm dia.

50 mm dia.

Supplying, fixing, testing and commissioning of brass ball valve with PN 16 pressure rating as specified as per Technical Specifications complete as required.

50 mm dia.

40 mm dia.

25 mm dia.

Making permanent blocking of existing following dia MS Pipe line by cutting the line closing with suitable dummy plate i/c necessary welding work and complete as required.

350 mm dia.

250 mm dia.

200 mm dia.

50 mm dia.

Supplying, fixing of ISMB 300 channel of confirming to IS 808 with latest and upto date amendments along with vibration isolators etc. to mount cooling tower including suitable continuous welding in the joints and adequately supported on cement concrete blocks and including one coat primer an two coats of enamel/approved shade as per specification and as required complete in all respect. Note: The quote shall includie providing scaffolding during dismantling of existing ISMB channel and installation of new ISMB channel.

Connection of new condensor pipe line to existing pipe line in 'T"- formation, including activities like draining the pipe line, continuous welding, leak and pressure testing, painting etc., complete as required.

Dismantling of existing damaged MS 'C' class pipe lines and valves of various sizes in the condersor/ cooling tower pipe lines and handed over to AAI stores .

Providing and laying in position cement concrete 1:2:4 (1cement : 2 coarse sand : 6 graded stone aggregate 40 mm nominal size)etc including form work as required.

Supply, fabrication and installation of the MS channel/ angle/ flat/sheet for horizontal & vertical supports for Condensor system including cutting, welding, drilling, fixing, grinding, applying redoxide of two coats, painting the same with approved colour shade paint etc., complete as required.

Cat (B) - Buy Back Items

Credit for dismantled materials under replacement of condenser and cooling tower pipe lines, approx. weight of 400Kgs.

season control Private Limited