Indian Oil Corporation Limited-IOCL has published Tender For Dismantling, Supply And Installation Of Primary And Secondary Foam Seals For Floating Roof Tanks Of Om And S Area During Tank M And I At Bongaigaon Refinery. Submission Date for this Tender is 28-02-2023. Dismantling Work Tenders in bongaigaon Assam. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Part A Foam Seal Repair Jobs [T-code GQ] |
| 2 | PART-A :: Foam Seal Repair Jobs [ T-Code GQ ] |
| 3 | Reparing of Primary Seal -TAX CODE GQ |
| 4 | INSTALLATION OF FOAM SEALS |
| 5 | DISMANTLING OF FOAM SEAL |
| 6 | FIXING / REMOVAL OF FLANGES / BLIND FLANGES OF RATING UPTO 300# Opening / fixing etc. of flanges / blind flanges / spool pieces at the two flange joint (rating upto 300#) as and when required for elbow reversing, wedge opening etc. or any other job including handling of flanges and preparation of gaskets from the sheet including tools and tackles, consumables, supervision etc. and as per direction of the Engineer-in-Charge. |
| 7 | 15 mm |
| 8 | 20 mm |
| 9 | 25 mm |
| 10 | 40 mm |
| 11 | 50 mm |
| 12 | 80 mm |
| 13 | 100 mm |
| 14 | 150 mm |
| 15 | 200 mm |
| 16 | 250 mm |
| 17 | 300 mm |
| 18 | 350 mm |
| 19 | 400 mm |
| 20 | OPENING AND BOXING UP OF MANHOLES The job involves opening of cover, man holes, by opening of bolts and nuts, cold/hot cutting of corroded fasteners, boxing up by using new and proper rating gasket after cleaning of gasket faces and complete the job in all respectas per drawings and direction of the Engineer-in-Charge, including all labour, tools, tackles, consumables and supervision etc. |
| 21 | Dia 18" to 24" |
| 22 | Dia 24" to 30" |
| 23 | Dia above 30" |
| 24 | HYDROTESING OF PIPING WORKS Hydrostatic testing of pipelines at the specified pressure including blinding/deblinding, fabrication and fixing of testing connections, pressure gauge installation. Hose pipe connection and making all other arrangements as required and dewatering, flushing and boxing up after fixing proper gaskets with supply of all labour, tools andtackles, instruments and instruction of the Engineer-in-Charge. The job has to be carried out at all elevations. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. |
| 25 | 80 mm |
| 26 | 100 mm |
| 27 | 150 mm |
| 28 | 200 mm |
| 29 | Reparing of Secondary seal assembly: Dismantling of secondary sealing device, dismantling & taking out oil soaked foam seals, sort out & disposal of unusable length of old foam seal, issue and shifting of new foam seal material from BGR ware house, application of neoprene / nitrile based adhesive material, repair, fixing & installation of foam seal assembly alongwith secondary sealing device in complete as per satisfaction of EIC |
| 30 | Part A Supply of Foam Seal [T-code GQ] |
| 31 | PART-A :: Supply of Primary & Secondary Foam Seal (T-Code GQ)Supply ofPrimary and Secondary foam seal:A typical drawing of foam seal is attched for reference. However contractor must make a site visit for assesment (w.r.t type, size, moc and quantity) of primary & secondary seal alongwith the spares for each floating roof tank. After familiariziation of the exact requirement ,contractor shall supply the materials for the floating roof tanks accordingly and as per the instruction of Engineer-In-Charge. The tentative requirement of primary and secondary seal & its spares for floating tanks(but not limited to below) being supplied by the contractor are as under.STANDARD SPECIFICATION:A) FOAM PACK: Material: Polyurethane foam confirming to ASTM D 3574(20 M) Shape: Octagonal Size: 305 mm/254 mm/200 mm across flat as per site requirement. Density(As per the ASTM D 2046):18 to 21 Kg/m3 Compression set At 50% deflection(As per ASTM D 2046): Less than 10% of original height and less than 20% of deflection. Load @25% deflection RMA value 6.81 +/- 1.36 Kgs Permanent strain due to compression <= 10% Sp. gravity 0.018 ~ 0.022B) RUBBER CASING:1. The casing material shall be oil and water resistant.2. Material for foam casing shall be Nylon fabric with Nitrile butadiene rubber or polyurathene coating on either side.3. Casing shall have the following characteristic. a) Thickness of basic fabric : 0.4 mm to 0.5 mm b) NBR/Polyurathene Coating : Either side of fabric with an overall thickness of 2 mm as finished. c) Hardness (Shore A) : 600 ± 5 d) Original Tensile Strength (ASTM D751) : 1150 Newtons/25mm e) Elongation : 300% (min.) f) Chemical properties : Un-extractable gumming fabric g) Weight per m2 : 1.140 Kg. To 1.200 Kg. h) Surface appearance : Woven i) Original adhesion (ASTM D413) : 80 Newtons/25mm j) Adhesion after fuel ageging : 45 Newtons/25mm k) Tensile strength after fuel ageing : 900 Newtons/25mm l) Tensile strength after 50,000 flex : 1000 Newtons/25mm m) Volumetric swelling ( ASTM D471)(*): 25% maximum n) Vapour permeability : 0.10 gms/Sq.m/hour4. Casing material shall be examined for volumetric variation in different oils / water as below : A.Maximum volumetric variation after immersion in Aromatic hydrocarbons at 500 C shall be limited to the following:test 48 Hrs. 10 Days. a) in pure toluene +54% +57% b) in a mixture containing +32% +33% 70% aromatic c) in a mixture containing +10% +12% 30 %aromatic d) Iso-octane fuel ASTM A +8% +12.5% B. Maximum Volumetric variation in water at 700C shall be limited to the following : 48 Hrs. 70 Days +8%+12.5% C) Safe return guide Protecting clip Wiper/seal tip Earthing shunt Wiper link Compression plate Clamping channel Vapour barrier membrane Hold down plate Nut bolt with washerNOTE : 1) All the primary& secondary seal shall be supplied with all the necessary fittings,studs etc as mentioned above and as per the attached drawing(Annexure-AI) & Tecnical specification no. IOCL/M &I/Mech/E/S/07 Rev 0 dated 19.01.2012. Vendor to confirm the requirement as mentioned in the drawing separately.2) IOCL reserves the right to take part or full supply of materials and execution job. No compensation shall be made for part job or supply. |
| 32 | Supply ofPrimary foam seal of size 305 mm for tanks:The tentative requirement of primary seal & its spares for floating tanks(but not limited to below mentioned) being supplied by the contractor are as under.1) Size:305 mm X3000 mm long across flatoctagonal polyurethane foam (refer B1.01 for detail specifications), 2) Nylon reinforced NBR sheet of 1200 mm wide 2 mm thick(refer B1.01 for detail specifications), 3) Holding down plates MOC-Galvanised iron: 1.5 mm thick 4) Holding flats MOC-Galvanised iron:3 mm thick, with G.I. nuts , bolts and washers as suitable.Note: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the primary foam seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. (As observed during the visit) and as per the standard specification given above and as per line no. 10 also. |
| 33 | Supply ofSecondary seal of 305mm size for tanks:Supply of secondary seal consists of following 1) NBR wiper tip Size:125 mmX15 mm thick 2) Vapour barrier curtain of polyamide,P.U. coated on both sides 0.5mm thick(minimum). 3) Weather shields MOC-Galvanised iron,1.2 mm thick, SS304 earthing shunts, 4) Cover strips 5) Holding flats for secondary seal along with nuts , bolts& washers of suitable size(MOC-Galvanised iron). 6) Safe return guide 7) Protecting clip 8) Seal tip 9) Earthing shunt 10)Wiper link 11)Compression plate 12) Clamping channel 13) Hold down plate 14) Nut bolt with washerNote: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the secondary seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. As observed during the visit) andas per the standard specification given above and as per line no. 10 also. |
| 34 | Supply ofPrimary foam seal of size 200mm for tanks:The tentative requirement of primary seal & its spares for floating tanks(but not limited to below mentioned) being supplied by the contractor are as under.1) Size: 200 mm X3000 mm long across flat octagonal polyurethane foam (refer B1.01 for detail specifications). 2) Nylon reinforced NBR sheet of 1200 mm wide 2 mm thick (refer B1.01 for detail specifications), 3) Holding down plates MOC-Galvanised iron: 1.5 mm thick 4) Holding flats MOC-Galvanised iron:3 mm thick, with G.I. nuts , bolts and washers as suitable.Note: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the primary foam seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. (As observed during the visit) and as per the standard specification given above and as per line no. 10 also. |
| 35 | Supply ofSecondary seal of 200 mm size for tanks:Supply of secondary seal consists of following 1) NBR wiper tip Size:125 mmX15 mm thick 2) Vapour barrier curtain of polyamide,P.U. coated on both sides 0.5mm thick(minimum). 3) Weather shields MOC-Galvanised iron,1.2 mm thick, SS304 earthing shunts, 4) Cover strips 5) Holding flats for secondary seal along with nuts , bolts& washers of suitable size(MOC-Galvanised iron). 6) Safe return guide 7) Protecting clip 8) Seal tip 9) Earthing shunt 10)Wiper link 11)Compression plate 12) Clamping channel 13) Hold down plate 14) Nut bolt with washerNote: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the secondary seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. As observed during the visit) andas per the standard specification given above and as per line no. 10 also. |
| 36 | Third party inspection charges for both primary & secondary seals. Rate shall be quoted in % of basic value. |
| 37 | Forwarding, Packing & Transportation of primary and secondary seal spares. Rate shall be quoted in % of basic value. |
| 38 | Part B Foam Seal Repair Jobs [T-code GP] |
| 39 | PART-B :: Foam Seal Repair Jobs [ T-Code GP ] |
| 40 | Reparing of Primary Seal -TAX CODE GP |
| 41 | INSTALLATION OF FOAM SEALS |
| 42 | DISMANTLING OF FOAM SEAL |
| 43 | FIXING / REMOVAL OF FLANGES / BLIND FLANGES OF RATING UPTO 300# Opening / fixing etc. of flanges / blind flanges / spool pieces at the two flange joint (rating upto 300#) as and when required for elbow reversing, wedge opening etc. or any other job including handling of flanges and preparation of gaskets from the sheet including tools and tackles, consumables, supervision etc. and as per direction of the Engineer-in-Charge. |
| 44 | 15 mm |
| 45 | 20 mm |
| 46 | 25 mm |
| 47 | 40 mm |
| 48 | 50 mm |
| 49 | 80 mm |
| 50 | 100 mm |
| 51 | 150 mm |
| 52 | 200 mm |
| 53 | 250 mm |
| 54 | 300 mm |
| 55 | 350 mm |
| 56 | 400 mm |
| 57 | OPENING AND BOXING UP OF MANHOLES The job involves opening of cover, man holes, by opening of bolts and nuts, cold/hot cutting of corroded fasteners, boxing up by using new and proper rating gasket after cleaning of gasket faces and complete the job in all respectas per drawings and direction of the Engineer-in-Charge, including all labour, tools, tackles, consumables and supervision etc. |
| 58 | Dia 18" to 24" |
| 59 | Dia 24" to 30" |
| 60 | Dia above 30" |
| 61 | HYDROTESING OF PIPING WORKS Hydrostatic testing of pipelines at the specified pressure including blinding/deblinding, fabrication and fixing of testing connections, pressure gauge installation. Hose pipe connection and making all other arrangements as required and dewatering, flushing and boxing up after fixing proper gaskets with supply of all labour, tools andtackles, instruments and instruction of the Engineer-in-Charge. The job has to be carried out at all elevations. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. |
| 62 | 80 mm |
| 63 | 100 mm |
| 64 | 150 mm |
| 65 | 200 mm |
| 66 | Reparing of Secondary seal assembly: Dismantling of secondary sealing device, dismantling & taking out oil soaked foam seals, sort out & disposal of unusable length of old foam seal, issue and shifting of new foam seal material from BGR ware house, application of neoprene / nitrile based adhesive material, repair, fixing & installation of foam seal assembly alongwith secondary sealing device in complete as per satisfaction of EIC |
| 67 | Part C Foam Seal Repair Jobs [T-code GR] |
| 68 | PART-C :: Foam Seal Repair Jobs [ T-Code GR ] |
| 69 | Reparing of Primary Seal -TAX CODE GR |
| 70 | INSTALLATION OF FOAM SEALS |
| 71 | DISMANTLING OF FOAM SEAL |
| 72 | FIXING / REMOVAL OF FLANGES / BLIND FLANGES OF RATING UPTO 300# Opening / fixing etc. of flanges / blind flanges / spool pieces at the two flange joint (rating upto 300#) as and when required for elbow reversing, wedge opening etc. or any other job including handling of flanges and preparation of gaskets from the sheet including tools and tackles, consumables, supervision etc. and as per direction of the Engineer-in-Charge. |
| 73 | 15 mm |
| 74 | 20 mm |
| 75 | 25 mm |
| 76 | 40 mm |
| 77 | 50 mm |
| 78 | 80 mm |
| 79 | 100 mm |
| 80 | 150 mm |
| 81 | 200 mm |
| 82 | 250 mm |
| 83 | 300 mm |
| 84 | 350 mm |
| 85 | 400 mm |
| 86 | OPENING AND BOXING UP OF MANHOLES The job involves opening of cover, man holes, by opening of bolts and nuts, cold/hot cutting of corroded fasteners, boxing up by using new and proper rating gasket after cleaning of gasket faces and complete the job in all respectas per drawings and direction of the Engineer-in-Charge, including all labour, tools, tackles, consumables and supervision etc. |
| 87 | Dia 18" to 24" |
| 88 | Dia 24" to 30" |
| 89 | Dia above 30" |
| 90 | HYDROTESING OF PIPING WORKS Hydrostatic testing of pipelines at the specified pressure including blinding/deblinding, fabrication and fixing of testing connections, pressure gauge installation. Hose pipe connection and making all other arrangements as required and dewatering, flushing and boxing up after fixing proper gaskets with supply of all labour, tools andtackles, instruments and instruction of the Engineer-in-Charge. The job has to be carried out at all elevations. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. |
| 91 | 80 mm |
| 92 | 100 mm |
| 93 | 150 mm |
| 94 | 200 mm |
| 95 | Reparing of Secondary seal assembly: Dismantling of secondary sealing device, dismantling & taking out oil soaked foam seals, sort out & disposal of unusable length of old foam seal, issue and shifting of new foam seal material from BGR ware house, application of neoprene / nitrile based adhesive material, repair, fixing & installation of foam seal assembly alongwith secondary sealing device in complete as per satisfaction of EIC |
| 96 | Part B Supply of Foam Seal [T-code GP] |
| 97 | PART-A :: Supply of Primary & Secondary Foam Seal (T-Code GQ)Supply ofPrimary and Secondary foam seal:A typical drawing of foam seal is attched for reference. However contractor must make a site visit for assesment (w.r.t type, size, moc and quantity) of primary & secondary seal alongwith the spares for each floating roof tank. After familiariziation of the exact requirement ,contractor shall supply the materials for the floating roof tanks accordingly and as per the instruction of Engineer-In-Charge. The tentative requirement of primary and secondary seal & its spares for floating tanks(but not limited to below) being supplied by the contractor are as under.STANDARD SPECIFICATION:A) FOAM PACK: Material: Polyurethane foam confirming to ASTM D 3574(20 M) Shape: Octagonal Size: 305 mm/254 mm/200 mm across flat as per site requirement. Density(As per the ASTM D 2046):18 to 21 Kg/m3 Compression set At 50% deflection(As per ASTM D 2046): Less than 10% of original height and less than 20% of deflection. Load @25% deflection RMA value 6.81 +/- 1.36 Kgs Permanent strain due to compression <= 10% Sp. gravity 0.018 ~ 0.022B) RUBBER CASING:1. The casing material shall be oil and water resistant.2. Material for foam casing shall be Nylon fabric with Nitrile butadiene rubber or polyurathene coating on either side.3. Casing shall have the following characteristic. a) Thickness of basic fabric : 0.4 mm to 0.5 mm b) NBR/Polyurathene Coating : Either side of fabric with an overall thickness of 2 mm as finished. c) Hardness (Shore A) : 600 ± 5 d) Original Tensile Strength (ASTM D751) : 1150 Newtons/25mm e) Elongation : 300% (min.) f) Chemical properties : Un-extractable gumming fabric g) Weight per m2 : 1.140 Kg. To 1.200 Kg. h) Surface appearance : Woven i) Original adhesion (ASTM D413) : 80 Newtons/25mm j) Adhesion after fuel ageging : 45 Newtons/25mm k) Tensile strength after fuel ageing : 900 Newtons/25mm l) Tensile strength after 50,000 flex : 1000 Newtons/25mm m) Volumetric swelling ( ASTM D471)(*): 25% maximum n) Vapour permeability : 0.10 gms/Sq.m/hour4. Casing material shall be examined for volumetric variation in different oils / water as below : A.Maximum volumetric variation after immersion in Aromatic hydrocarbons at 500 C shall be limited to the following:test 48 Hrs. 10 Days. a) in pure toluene +54% +57% b) in a mixture containing +32% +33% 70% aromatic c) in a mixture containing +10% +12% 30 %aromatic d) Iso-octane fuel ASTM A +8% +12.5% B. Maximum Volumetric variation in water at 700C shall be limited to the following : 48 Hrs. 70 Days +8%+12.5% C) Safe return guide Protecting clip Wiper/seal tip Earthing shunt Wiper link Compression plate Clamping channel Vapour barrier membrane Hold down plate Nut bolt with washerNOTE : 1) All the primary& secondary seal shall be supplied with all the necessary fittings,studs etc as mentioned above and as per the attached drawing(Annexure-AI) & Tecnical specification no. IOCL/M &I/Mech/E/S/07 Rev 0 dated 19.01.2012. Vendor to confirm the requirement as mentioned in the drawing separately.2) IOCL reserves the right to take part or full supply of materials and execution job. No compensation shall be made for part job or supply. |
| 98 | Supply ofPrimary foam seal of size 305 mm for tanks:The tentative requirement of primary seal & its spares for floating tanks(but not limited to below mentioned) being supplied by the contractor are as under.1) Size:305 mm X3000 mm long across flatoctagonal polyurethane foam (refer B1.01 for detail specifications), 2) Nylon reinforced NBR sheet of 1200 mm wide 2 mm thick(refer B1.01 for detail specifications), 3) Holding down plates MOC-Galvanised iron: 1.5 mm thick 4) Holding flats MOC-Galvanised iron:3 mm thick, with G.I. nuts , bolts and washers as suitable.Note: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the primary foam seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. (As observed during the visit) and as per the standard specification given above and as per line no. 10 also. |
| 99 | Supply ofSecondary seal of 305mm size for tanks:Supply of secondary seal consists of following 1) NBR wiper tip Size:125 mmX15 mm thick 2) Vapour barrier curtain of polyamide,P.U. coated on both sides 0.5mm thick(minimum). 3) Weather shields MOC-Galvanised iron,1.2 mm thick, SS304 earthing shunts, 4) Cover strips 5) Holding flats for secondary seal along with nuts , bolts& washers of suitable size(MOC-Galvanised iron). 6) Safe return guide 7) Protecting clip 8) Seal tip 9) Earthing shunt 10)Wiper link 11)Compression plate 12) Clamping channel 13) Hold down plate 14) Nut bolt with washerNote: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the secondary seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. As observed during the visit) andas per the standard specification given above and as per line no. 10 also. |
| 100 | Supply ofPrimary foam seal of size 200mm for tanks:The tentative requirement of primary seal & its spares for floating tanks(but not limited to below mentioned) being supplied by the contractor are as under.1) Size: 200 mm X3000 mm long across flat octagonal polyurethane foam (refer B1.01 for detail specifications). 2) Nylon reinforced NBR sheet of 1200 mm wide 2 mm thick (refer B1.01 for detail specifications), 3) Holding down plates MOC-Galvanised iron: 1.5 mm thick 4) Holding flats MOC-Galvanised iron:3 mm thick, with G.I. nuts , bolts and washers as suitable.Note: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the primary foam seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. (As observed during the visit) and as per the standard specification given above and as per line no. 10 also. |
| 101 | Supply ofSecondary seal of 200 mm size for tanks:Supply of secondary seal consists of following 1) NBR wiper tip Size:125 mmX15 mm thick 2) Vapour barrier curtain of polyamide,P.U. coated on both sides 0.5mm thick(minimum). 3) Weather shields MOC-Galvanised iron,1.2 mm thick, SS304 earthing shunts, 4) Cover strips 5) Holding flats for secondary seal along with nuts , bolts& washers of suitable size(MOC-Galvanised iron). 6) Safe return guide 7) Protecting clip 8) Seal tip 9) Earthing shunt 10)Wiper link 11)Compression plate 12) Clamping channel 13) Hold down plate 14) Nut bolt with washerNote: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the secondary seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. As observed during the visit) andas per the standard specification given above and as per line no. 10 also. |
| 102 | Third party inspection charges for both primary & secondary seals. Rate shall be quoted in % of basic value. |
| 103 | Forwarding, Packing & Transportation of primary and secondary seal spares. Rate shall be quoted in % of basic value. |
| 104 | Part C Supply of Foam Seal [T-code GR] |
| 105 | PART-A :: Supply of Primary & Secondary Foam Seal (T-Code GQ)Supply ofPrimary and Secondary foam seal:A typical drawing of foam seal is attched for reference. However contractor must make a site visit for assesment (w.r.t type, size, moc and quantity) of primary & secondary seal alongwith the spares for each floating roof tank. After familiariziation of the exact requirement ,contractor shall supply the materials for the floating roof tanks accordingly and as per the instruction of Engineer-In-Charge. The tentative requirement of primary and secondary seal & its spares for floating tanks(but not limited to below) being supplied by the contractor are as under.STANDARD SPECIFICATION:A) FOAM PACK: Material: Polyurethane foam confirming to ASTM D 3574(20 M) Shape: Octagonal Size: 305 mm/254 mm/200 mm across flat as per site requirement. Density(As per the ASTM D 2046):18 to 21 Kg/m3 Compression set At 50% deflection(As per ASTM D 2046): Less than 10% of original height and less than 20% of deflection. Load @25% deflection RMA value 6.81 +/- 1.36 Kgs Permanent strain due to compression <= 10% Sp. gravity 0.018 ~ 0.022B) RUBBER CASING:1. The casing material shall be oil and water resistant.2. Material for foam casing shall be Nylon fabric with Nitrile butadiene rubber or polyurathene coating on either side.3. Casing shall have the following characteristic. a) Thickness of basic fabric : 0.4 mm to 0.5 mm b) NBR/Polyurathene Coating : Either side of fabric with an overall thickness of 2 mm as finished. c) Hardness (Shore A) : 600 ± 5 d) Original Tensile Strength (ASTM D751) : 1150 Newtons/25mm e) Elongation : 300% (min.) f) Chemical properties : Un-extractable gumming fabric g) Weight per m2 : 1.140 Kg. To 1.200 Kg. h) Surface appearance : Woven i) Original adhesion (ASTM D413) : 80 Newtons/25mm j) Adhesion after fuel ageging : 45 Newtons/25mm k) Tensile strength after fuel ageing : 900 Newtons/25mm l) Tensile strength after 50,000 flex : 1000 Newtons/25mm m) Volumetric swelling ( ASTM D471)(*): 25% maximum n) Vapour permeability : 0.10 gms/Sq.m/hour4. Casing material shall be examined for volumetric variation in different oils / water as below : A.Maximum volumetric variation after immersion in Aromatic hydrocarbons at 500 C shall be limited to the following:test 48 Hrs. 10 Days. a) in pure toluene +54% +57% b) in a mixture containing +32% +33% 70% aromatic c) in a mixture containing +10% +12% 30 %aromatic d) Iso-octane fuel ASTM A +8% +12.5% B. Maximum Volumetric variation in water at 700C shall be limited to the following : 48 Hrs. 70 Days +8%+12.5% C) Safe return guide Protecting clip Wiper/seal tip Earthing shunt Wiper link Compression plate Clamping channel Vapour barrier membrane Hold down plate Nut bolt with washerNOTE : 1) All the primary& secondary seal shall be supplied with all the necessary fittings,studs etc as mentioned above and as per the attached drawing(Annexure-AI) & Tecnical specification no. IOCL/M &I/Mech/E/S/07 Rev 0 dated 19.01.2012. Vendor to confirm the requirement as mentioned in the drawing separately.2) IOCL reserves the right to take part or full supply of materials and execution job. No compensation shall be made for part job or supply. |
| 106 | Supply ofPrimary foam seal of size 305 mm for tanks:The tentative requirement of primary seal & its spares for floating tanks(but not limited to below mentioned) being supplied by the contractor are as under.1) Size:305 mm X3000 mm long across flatoctagonal polyurethane foam (refer B1.01 for detail specifications), 2) Nylon reinforced NBR sheet of 1200 mm wide 2 mm thick(refer B1.01 for detail specifications), 3) Holding down plates MOC-Galvanised iron: 1.5 mm thick 4) Holding flats MOC-Galvanised iron:3 mm thick, with G.I. nuts , bolts and washers as suitable.Note: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the primary foam seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. (As observed during the visit) and as per the standard specification given above and as per line no. 10 also. |
| 107 | Supply ofSecondary seal of 305mm size for tanks:Supply of secondary seal consists of following 1) NBR wiper tip Size:125 mmX15 mm thick 2) Vapour barrier curtain of polyamide,P.U. coated on both sides 0.5mm thick(minimum). 3) Weather shields MOC-Galvanised iron,1.2 mm thick, SS304 earthing shunts, 4) Cover strips 5) Holding flats for secondary seal along with nuts , bolts& washers of suitable size(MOC-Galvanised iron). 6) Safe return guide 7) Protecting clip 8) Seal tip 9) Earthing shunt 10)Wiper link 11)Compression plate 12) Clamping channel 13) Hold down plate 14) Nut bolt with washerNote: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the secondary seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. As observed during the visit) andas per the standard specification given above and as per line no. 10 also. |
| 108 | Supply ofPrimary foam seal of size 200mm for tanks:The tentative requirement of primary seal & its spares for floating tanks(but not limited to below mentioned) being supplied by the contractor are as under.1) Size: 200 mm X3000 mm long across flat octagonal polyurethane foam (refer B1.01 for detail specifications). 2) Nylon reinforced NBR sheet of 1200 mm wide 2 mm thick (refer B1.01 for detail specifications), 3) Holding down plates MOC-Galvanised iron: 1.5 mm thick 4) Holding flats MOC-Galvanised iron:3 mm thick, with G.I. nuts , bolts and washers as suitable.Note: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the primary foam seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. (As observed during the visit) and as per the standard specification given above and as per line no. 10 also. |
| 109 | Supply ofSecondary seal of 200 mm size for tanks:Supply of secondary seal consists of following 1) NBR wiper tip Size:125 mmX15 mm thick 2) Vapour barrier curtain of polyamide,P.U. coated on both sides 0.5mm thick(minimum). 3) Weather shields MOC-Galvanised iron,1.2 mm thick, SS304 earthing shunts, 4) Cover strips 5) Holding flats for secondary seal along with nuts , bolts& washers of suitable size(MOC-Galvanised iron). 6) Safe return guide 7) Protecting clip 8) Seal tip 9) Earthing shunt 10)Wiper link 11)Compression plate 12) Clamping channel 13) Hold down plate 14) Nut bolt with washerNote: Above mentioned MOC and dimensions are indicative only. Contractor has to supply the secondary seal along with all bolting arrangements, fixtures, strip, holding plates, holding flats etc as per the actual installed and as per site requirement only. As observed during the visit) andas per the standard specification given above and as per line no. 10 also. |
| 110 | Third party inspection charges for both primary & secondary seals. Rate shall be quoted in % of basic value. |
| 111 | Forwarding, Packing & Transportation of primary and secondary seal spares. Rate shall be quoted in % of basic value. |
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