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| 1 | Thickness of Insulation: Less than 75 mm: Removal of existing damaged worn out insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by providing & fixing single/multiple layer of machine stitched preformed LRB mineral wool mattresses of density 140 to 150kg/m3 conforming to IS:8183 in required thickness over pipings, equipments etc., including fixing the insulation mattresses in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. Note: 1) Contractor has to make his own arrangement for procurement and storage of all the materials. 2) This item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 2 | Thickness of Insulation: Less than 75 mm: Removal of existing damaged worn out insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by fixing single/multiple layer of machine stitched preformed LRB mineral wool mattresses of density 140 to 150kg/m3 conforming to IS:8183 in required thickness over pipings, equipments etc., including fixing the insulation mattresses in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. Note: 1) NRL will issue LRB mineral wool mattresses on free issue basis. However, contractor has to make their own arrangement for storage of all the materials.2) Other anciliary items/tools tackles/manpower etc. has to be supplied by the contractor. 3) item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 3 | Thickness of Insulation: From 75 mm upto to 124mm: Removal of existing damaged worn out insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by providing & fixing single/multiple layer of machine stitched preformed LRB mineral wool mattresses of density 140 to 150kg/m3 conforming to IS:8183 in required thickness over pipings, equipments etc., including fixing the insulation mattresses in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. Note: 1) Contractor has to make his own arrangement for procurement and storage of all the materials. 2) This item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 4 | Thickness of Insulation: From 75 mm upto to 124mm: Removal of existing damaged worn out insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by fixing single/multiple layer of machine stitched preformed LRB mineral wool mattresses of density 140 to 150kg/m3 conforming to IS:8183 in required thickness over pipings, equipments etc., including fixing the insulation mattresses in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. Note: 1) NRL will issue LRB mineral wool mattresses on free issue basis. However, contractor has to make their own arrangement for storage of all the materials.2) Other anciliary items/tools tackles/manpower etc. has to be supplied by the contractor. 3) item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 5 | Thickness of Insulation: 125 mm and above: Removal of existing damaged worn out insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by providing & fixing single/multiple layer of machine stitched preformed LRB mineral wool mattresses of density 140 to 150kg/m3 conforming to IS:8183 in required thickness over pipings, equipments etc., including fixing the insulation mattresses in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. Note: 1) Contractor has to make his own arrangement for procurement and storage of all the materials. 2) This item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 6 | Thickness of Insulation: 125 mm and above: Removal of existing damaged worn out insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by fixing single/multiple layer of machine stitched preformed LRB mineral wool mattresses of density 140 to 150kg/m3 conforming to IS:8183 in required thickness over pipings, equipments etc., including fixing the insulation mattresses in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. Note: 1) NRL will issue LRB mineral wool mattresses on free issue basis. However, contractor has to make their own arrangement for storage of all the materials.2) Other anciliary items/tools tackles/manpower etc. has to be supplied by the contractor. 3) item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 7 | Cutting out inspection pockets of maximum area 1 square meter in insulation over pipings, vessels, columns, equipments etc. (upto 5 m from ground level) including cutting out of existing aluminium cladding & insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by providing all material and re-insulation of the pockets in original thickness along with refitting of aluminum cladding with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. LRB mineral wool mattresses shall be of density 140 to 150kg/m3 conforming to IS:8183 and Internal polysurlyn coated Aluminium alloy sheet shall be as per ASTM B209 (alloy 3003 H14), 0.71 mm (thickness). Note: 1) Contractor has to make his own arrangement for procurement and storage of all the materials. 2) Anciliary items/tools tackles/manpower etc. has to be supplied by the contractor. 3) item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. 4) The cutout pockets shall be reinsulated only after clearance from EIC. |
| 8 | Extra for every additional height of one meter or part thereof beyond 5 meters from ground level for Cutting out inspection pockets in insulation over pipings, vessels, columns, equipments etc.Measurements for this item=(Measurement of work as per item no 70)×(Height of the work location in meters minus 5). |
| 9 | Removal of old damaged worn out Aluminium Cladding followed by providing and fixing cladding with new internal polysurlyn coated Aluminum plain /corrugated sheets (Internal polysurlyn coated Aluminium alloy sheet shall be as per ASTM B209 (alloy 3003 H14), 1220x0.71 mm (Width X thickness) . The job includes cutting, bending and grooving to proper shape and size and fixing with self-tapping screws,securing with mettalic bands wherever required and providing water proofing elastomeric sealing compound/aluminum foil tape between the sheet overlap/joint.Note: 1) NRL will issue Aluminum foil tape & Aluminium/SS securing Bands on free issue basis 2) Contractor has to make his own arrangement for procurement and storage of all other materials. 3) This item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 10 | Removal of old damaged worn out Aluminium Cladding and fixing cladding with new internal polysurlyn coated Aluminum plain /corrugated sheets. The job includes cutting, bending and grooving to proper shape and size and fixing with self-tapping screws,securing with mettalic bands wherever required and providing water proofing elastomeric sealing compound/aluminum foil tape between the sheet overlap/joint.Note: 1) NRL will issue internal polysurlyn coated Aluminum plain /corrugated sheets, Aluminum foil tape and Aluminium/SS securing Bands on free issue basis. However, contractor has to make their own arrangement for storage of all the materials.2) Other anciliary items/self tapping screw/joint sealing compunds/aluminium foil tape/tools tackles/manpower etc. has to be supplied by the contractor. 3) item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 11 | Fixing of Ceramic fibre Blanket as per required size and shape, including disposal of the debris to the designated locations and cleaning the site complete as per instruction of Engineer in Charge. (Ceramic Blanket fibre shall be supplied free of cost from NRL store. All other materials, tools tackles will be on Contractor's scope of supply). |
| 12 | Providing and fixing box scaffolding system up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to 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. as per directions and approval of Engineer-in- charge .The volume of the scaffolding works shall be measured for payment purpose . The payment will be made once irrespective of duration of scaffolding. |
| 13 | Supply and application of approved brand of HEAT RESISTANT PAINT (H1) TWO COATS.including steel scaffolding , preparation of surfaces, identifications, lettering/numbering, colour coding etc. as specified including rub down and touch up of shop/field primer or scrapping of shop/field primer wherever required for all heights, labour, materials, tools and tackles, consumables,supervision, etc. to complete the work in all respects as per specifications, NRL painting Manual and direction of Engineer in Charge. |
| 14 | Deployment & operation of tipper/dumper with operator, diesel and adequate numbers of helpers (minimum 4 workers (excluding driver) with all tools and tackles) for disposal of insulation material/debris/scrap to a designated place as per the direction of Engineer in charge. |
| 15 | Cold Insulation All thickness: Removal of existing damaged worn out insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by fixing single/multiple layer of cold insulation material over the technological equipments like piping, vessels, ducts, storage tanks etc., including fixing the insulation in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. The item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge, return of scrap to NRL storeyard.Note: 1) NRL will issue COLD insulation material on free issue basis. However, contractor has to make their own arrangement for storage of all the materials.2) Other anciliary items/tools tackles/manpower etc. has to be supplied by the contractor. 3) item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 16 | Cold Insulation: Removal of existing damaged worn out insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by supplying and fixing single/multiple layer of cold insulation material as per ASTM C591 type II, Gr. 2 density 40 to 64 kg/m3 over the technological equipments like piping, columns, vessels, ducts, horton spheres, storage tanks etc., including fixing the insulation in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge. The item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge, return of scrap to NRL storeyard. |
| 17 | Calcium Silicate Insulation: All thickness: Removal of existing damaged worn out calcium silicate insulation, thoroughly cleaning the surface with wire brush or any other method as approved by the Engineer Incharge followed by fixing single/multiple layer Calcium Silicate Insulation over technological equipments like piping, columns, vessels, ducts or any other equipment., including fixing the insulation in position and securing the same properly with all necessary tools, tackles, materials such as binding, stitching wire, weather coating ,labour etc. The complete work shall be in accordance with the specifications laid down in the contract and in the latest IS standards as per the directions of Engineer-in-Charge.The item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge, return of scrap to NRL storeyard.Note: 1) NRL will issue Calcium Silicate insulation material on free issue basis. However, contractor has to make their own arrangement for storage of all the materials.2) Other anciliary items/tools tackles/manpower etc. has to be supplied by the contractor. 3) item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 18 | Repairing of damaged refractory with specified materials, including breaking of old castable lining, removing / disposing the debris to designated locations within the Refinery, transporting the issued materials from Warehouse; cleaning the area of application; making all arrangements for castable lining including shuttering, casting the refractory, curing etc. complete as per instruction of EIC. (Refractory castable materials shall be supplied free of cost from NRL store. All other materials tools tackles, manpower will be on Contractor's scope of supply). |
| 19 | Fixing of Refractory Bricks of various sizes; including cutting/grinding with power cutting tools ; to the required size and shape; removal of damaged bricks from the equipment and disposal the same to the designated locations , providing backup insulation board wherever applicable, fixing the fresh bricks with mortar or self locking mechanism as per drawing, curing complete in all respect to the satisfaction of the Engineer In Charge. Note: 1) NRL will issue refractory bricks on free issue basis. However, contractor has to make their own arrangement for storage of all the materials in a proper place away from moisture. 2) Other anciliary items/tools tackles/manpower etc. has to be supplied by the contractor. 3) item includes disposal of the debris to the directed place within the unit in concern as per the direction of Engineer-in-Charge. |
| 20 | Supply of allumnium foil tape of size 100mmx20m suitable for ducting, insulation jobs etc. as per SCC Please Enable Macros to View BoQ information |
