Chennai Petroleum Corporation Limited Tender

"Fixing single of machine stitched preformed LRB mineral wool mattresses of density 150 kg/cum conforming to IS:8183 in required thickness over the technological equipments like columns, vessels, ducts, horton spheres, storage tanks etc., including cleaning of the surface with wire brush, fixing the insulation mattresses in position and securing the same properly, etc. all complete with tools, tackles, materials such as self tapping screws, lacing, binding, stitching wire, labour etc. complete in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. LRB will be supplied by CPCL free of cost."

"Fixing cladding with old aluminium/GI plain/corrugated sheets. The job includes cutting, bending & grooving to proper shape and size and fixing with self-tapping screws, providing water proofing tar felt between the sheet overlap/joint securing with metallic bands wherever required at any height with all labour, materials (except cladding sheets which will be supplied by owner), etc. complete as per direction of Engineer-in-Charge. (Payment shall be made on the area of the finished surface)."

Providing and fixing double scaffolding system on the exterior side, up to seven story height made with 40mm dia M.S. tube 1.5m centre horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineer-in-charge. The payment will be made once irrespective of duration of scaffolding.

Supply and Welding of insulation Anchors /lugs/ bolts etc (SS 304). The scope involves removal of old anchors/lugs/bolts and welding new ones as per requirement and instructions of EIC.

Supply and Welding of insulation Anchors / bolts etc (Carbon Steel). The scope involves removal of old anchors/lugs/bolts and welding new ones as per requirement and instructions of EIC.

"Providing and fixing single/multiple layer of machine stitched preformed LRB mineral wool mattresses of density 150 kg/cum conforming to IS:8183 in required thickness over the technological equipments like columns, vessels, ducts, horton spheres, storage tanks etc., including cleaning of the surface with wire brush, fixing the insulation mattresses in position and securing the same properly, excluding scaffolding etc. all complete with tools, tackles, materials such as self tapping screws, lacing, binding, stitching wire, labour etc. complete in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. While using more than one layer, the most economical combination shall be paid."

LRB thickness 25mm

LRB thickness 40mm

LRB thickness 50mm

LRB thickness 60mm

LRB thickness 75mm

Providing and Fixing cladding with new Aluminum plan /corrugated sheets of the following gauges. The job includes cutting, bending and grooving to proper shape and size and fixing with self-tapping screws, providing water proofing tar felt between the sheet overlap/joint, securing with metallic bands wherever required at any height with all labour , all materials including cladding sheets, etc. complete as per specification and direction of Engineer-In-Charge. ( Payment shall be made on the area of the finished surface).

Plain aluminum sheet - 24 SWG

Plain aluminum sheet - 22 SWG

Corrugated Al. sheet - 24 SWG

Corrugated Al. sheet - 22 SWG

Additional cost for coating of Cladding sheet on the side in contact with the insulation with a Bitumen Paint

Supply & Installation of 0.19 mm pot sheet Aluminium foil for steam tracing pipe lines.

Supply & Installation of SS foil of 0.1 mm thick for SS line vapor barrier.

Supply & fixing of vapor barrier between LRB mattresses and cladding sheet: Application of open weave glass cloth and then 3mm 'Shalicoat' of M/S STP Ltd / Insulcoat of M/s Lloyd Insulation., or equivalent

Providing and laying plastering two layers upto 20mm thick with 1:4 (1-Cement and 4-Medium sand) at any height including finishing curing etc., over cold or hot insulation surfaces. Cement will be supplied by CPCL free of cost

"Providing all necessary materials and carrying out cold insulation works as per the following specifications on equipments like columns, vessels, exchangers, ducts etc., at any height including the cost of all materials, tools and tackles, labour, etc. complete as per direction of Engineer-in-Charge. 1) A coat of approved bituminous paint (IS:158/69) shall be applied on the metal surface after through cleaning. 2) A coat of hot bitumen of 85/25 grade conforming to IS:702 to be applied on the painted surface for fixing Polyurethane foam (PUF) blocks and preformed pipe section of density 36 kg/cum without gaps in between the required size and shape, tightening them by tying each layer with 16 SWG wire at the rate of 500mm centre to centre. 3) A coat of hot bitumen of 85/25 grade conforming to IS:702 to be applied on each layer, surface and joint of blocks and sections. 4) Encircle the last layer of insulation by application of open weave glass cloth and then 3mm 'Shalicoat' of M/S STP Ltd / Insulcoat of M/s Lloyd Insulation., or equivalent"

PUF for 25 mm thickness

PUF for 40 mm thickness

PUF for 50 mm thickness

PUF for 60 mm thickness

PUF for 75 mm thickness

PUF for 100 mm thickness

PUF for 125 mm thickness

PUF for 150 mm thickness

PUF for 175 mm thickness

Installation of cold insulation as per the above specification with available materials supplied by CPCL at free of cost

"Cleaning the surface thoroughly, providing all materials such as calcium silicate slabs/ curved segments / bevelled legs, wire mesh (3/4"" x 24 swg), binding wires, aluminium bends, weather proofing compound and tying wire etc. and carrying out insulation works as per the following specifications on pipelines at any height including the cost of all materials, tools, tackles, labour,etc. complete as per direction of the Engineer-in-Charge: b) Calcium silicate insulation in the form of half round pipe sections/curved segments/bevelled legs shall be fixed on the clean surface. For insulation thicknesses upto 75mm, only half round pipe sections shall be used for pipes of diameter upto 300mm. For insulation thicknesses greater than 75mm, insulation shall be provided in two layers and for diameters upto 300mm, first layer shall be of half round pipe sections. For diameters more than 300mm curved segments / bevelled legs shall be used. c) Insulation shall be bound securely by using SS binding wire of 18 SWG at pitch not more than 450mm. For long lasting securement, 20mm wide alluminium band of 24 SWG shall be provided at a pitch of max. 600mm. At each end of pipe insulation, the distance between the end of pipe insulation and the band/wire should not be less than 50mm. The wire should be tightened by twisting and the ends of wire to be pressed on to the insulation material. g) Insulation of flanges, valves and bends etc. shall be done using preformed insulation as far as practicable. h) For bends, pipe-coverings shall be cut as per the bend radius at site. any unavoidable gaps shall be sealed by calcium silicate powder paste. Chicken wire-mesh shall be used as additional securement for insulation over bends, in place of aluminium bands. The measurements shall be done as per the IS 14164: 1994."

Calcium Silicate for 25 mm thickness

Calcium Silicate for 40 mm thickness

Calcium Silicate for 50 mm thickness

Calcium Silicate for 60 mm thickness

Calcium Silicate for 75 mm thickness

Installation of Calcium Silicate insulation as per the above specification with available materials supplied by CPCL at free of cost

Supply & Installation of 0.6 mm SS 304 cladding over finished insulated surfaces

Application of Telescopic seals for Technip design reformer tube inlet pipes as per the procedure of OEM.

Supply and application of ceramic fibre rope of 25mm thickness of grade 1260 degree celcius