AMC for Insulation Jobs at Refinery and NRMT

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.

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.

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.

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.

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.

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.

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.

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).

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.

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.