RATE CONTRACT FOR REMOVAL/ REGUTTING / CHEMICAL CLEANING AND PRESSURE TESTING OF ATUS/AHUS/HES

HEs, Ventilation coolers & ATUs Cleaning of water side (SNF)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to be flushed through with fresh water.

HEs, Ventilation coolers & ATUs- Repairs (SNF)_(a) Post cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by Plugging of tube including manufacture of plug (Material : Copper)

HEs, Ventilation cooler & ATUs-Removal & refitment (SNF)_(a) Removal of ATU / HE including delagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, re-fitment of ATU/HE including associated system pipelines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets / joints of water (pipes) and air side (trunking) during re-fitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing / trunking including drilling / tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the HE/ATU.

HEs, Ventilation cooler & ATUs- Cleaning of air side (SNF)_Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure.

Fresh water cooler (SNF)_(a) Removal of fresh water cooler from ship to shop floor to facilitate chemical cleaning with standard procedure. (b) Carry out dismantling for tubes cleaning (c) cleans the tubes with sea water. (d) Renew corrosion plugs as required. (e) Carry out the pressure testing after re assembling. (f) Shifting to ship for re-gutting.

Inter stage cooler (SNF)_(a) Removal of inter stage cooler from ship to shop floor to facilitate chemical cleaning with standard procedure(tube internal passages with dituted H2SO4 and neutralization with caustic soda) both water side and air cavity. (b) Post cleaning pressure test as per manual (c) shifting to ship for re-fitment.

Cooler / condenser/ chiller- Removal & re-fitment (SNF)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) Post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) Renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) Pressure testing up to 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (SNF)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (SNF)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Cooler / condenser/ chiller- Repairs& pressure testing (SNF)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

HEs, Ventilation coolers & ATUs Cleaning of water side (Corvettes)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to be flushed through with fresh water.

HEs, Ventilation coolers & ATUs- Repairs (Corvettes)_(a) Post cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by Plugging of tube including manufacture of plug (Material : Copper)

HEs, Ventilation cooler & ATUs-Removal & refitment (Corvettes)_(a) Removal of ATU / HE including delagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, re-fitment of ATU/HE including associated system pipelines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets / joints of water (pipes) and air side (trunking) during re-fitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing / trunking including drilling / tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the HE/ATU.

HEs, Ventilation cooler & ATUs- Cleaning of air side (Corvettes)_Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure.

Cooler / condenser/ chiller- Removal & re-fitment (Corvettes)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) Post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) Renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) Pressure testing up to 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (Corvettes)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (Corvettes)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Cooler / condenser/ chiller- Repairs& pressure testing (Corvettes)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

HEs, Ventilation coolers & ATUs Cleaning of water side (P-28)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to be flushed through with fresh water.

HEs, Ventilation coolers & ATUs- Repairs (P-28)_(a) Post cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by Plugging of tube including manufacture of plug (Material : Copper)

HEs, Ventilation cooler & ATUs-Removal & refitment (P-28)_(a) Removal of ATU / HE including delagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, re-fitment of ATU/HE including associated system pipelines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets / joints of water (pipes) and air side (trunking) during re-fitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing / trunking including drilling / tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the HE/ATU.

HEs, Ventilation cooler & ATUs- Cleaning of air side (P-28)_Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure.

Fresh water cooler (P-28)_(a) Removal of fresh water cooler from ship to shop floor to facilitate chemical cleaning with standard procedure. (b) Carry out dismantling for tubes cleaning (c) cleans the tubes with sea water. (d) Renew corrosion plugs as required. (e) Carry out the pressure testing after re assembling. (f) Shifting to ship for re-gutting.

Inter stage cooler (P-28)_(a) Removal of inter stage cooler from ship to shop floor to facilitate chemical cleaning with standard procedure(tube internal passages with dituted H2SO4 and neutralization with caustic soda) both water side and air cavity. (b) Post cleaning pressure test as per manual (c) shifting to ship for re-fitment.

Cooler / condenser/ chiller- Removal & re-fitment (P-28)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) Post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) Renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) Pressure testing up to 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (P-28)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (P-28)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Cooler / condenser/ chiller- Repairs& pressure testing (P-28)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

HEs, Ventilation coolers & ATUs Cleaning of water side (LSTs)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to be flushed through with fresh water.

HEs, Ventilation coolers & ATUs- Repairs (LSTs)_(a) Post cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by Plugging of tube including manufacture of plug (Material : Copper)

HEs, Ventilation cooler & ATUs-Removal & refitment (LSTs)_(a) Removal of ATU / HE including delagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, re-fitment of ATU/HE including associated system pipelines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets / joints of water (pipes) and air side (trunking) during re-fitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing / trunking including drilling / tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the HE/ATU.

HEs, Ventilation cooler & ATUs- Cleaning of air side (LSTs)_Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure.

Cooler / condenser/ chiller- Removal & re-fitment (LSTs)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) Post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) Renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) Pressure testing up to 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (LSTs)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (LSTs)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Cooler / condenser/ chiller- Repairs& pressure testing (LSTs)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

HEs, Ventilation coolers & ATUs- Cleaning of air side (FACs)_Mechanical cleaning of air side (physical/ water jet)

condenser/ Removal & re-fitment (FACs)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) pressure testing upto 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

condenser/ -shifting (FACs)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

condenser/ -cleaning (FACs)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

condenser/ - Repairs& pressure testing (FACs)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

HEs, Ventilation coolers & ATUs Cleaning of water side (OPVs)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to be flushed through with fresh water.

HEs, Ventilation coolers & ATUs- Repairs (OPVs)_(a) Post cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by Plugging of tube including manufacture of plug (Material : Copper)

HEs, Ventilation cooler & ATUs-Removal & refitment (OPVs)_(a) Removal of ATU / HE including delagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, re-fitment of ATU/HE including associated system pipelines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets / joints of water (pipes) and air side (trunking) during re-fitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing / trunking including drilling / tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the HE/ATU.

HEs, Ventilation cooler & ATUs- Cleaning of air side (OPVs)_Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure.

Fresh water cooler (OPVs)_(a) Removal of fresh water cooler from ship to shop floor to facilitate chemical cleaning with standard procedure. (b) Carry out dismantling for tubes cleaning (c) cleans the tubes with sea water. (d) Renew corrosion plugs as required. (e) Carry out the pressure testing after re assembling. (f) Shifting to ship for re-gutting.

Inter stage cooler (OPVs)_(a) Removal of inter stage cooler from ship to shop floor to facilitate chemical cleaning with standard procedure(tube internal passages with dituted H2SO4 and neutralization with caustic soda) both water side and air cavity. (b) Post cleaning pressure test as per manual (c) shifting to ship for re-fitment.

Cooler / condenser/ chiller- Removal & re-fitment (OPVs)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) Post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) Renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) Pressure testing up to 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (OPVs)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (OPVs)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Cooler / condenser/ chiller- Repairs& pressure testing (OPVs)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

Cooler / condenser/ chiller- Removal & re-fitment (LCUs)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) pressure testing upto 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (LCUs)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (LCUs)_(a) Insitu mechanical cleaning of water side of HE for de-scaling. (b) Shopfloor mechanical cleaning of water side of HE for de-scaling. (c) Insitu chemical cleaning of water side of HE as per standard norms. (d) Shopfloor chemical cleaning of water side of HE as per standard norms (e) Insitu mechanical cleaning of gas side by blowing through with moya oil. (f) shopfloor mechanical cleaning of gas side by blowing through with moya oil.

Cooler / condenser/ chiller- Repairs& pressure testing (LCUs)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

HEs, Ventilation coolers & ATUs Cleaning of water side (Submarines)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to be flushed through with fresh water.

HEs, Ventilation coolers & ATUs- Repairs (Submarines)_(a) Post cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by Plugging of tube including manufacture of plug (Material : Copper)

HEs, Ventilation cooler & ATUs-Removal & refitment (Submarines)_(a) Removal of ATU / HE including delagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, re-fitment of ATU/HE including associated system pipelines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets / joints of water (pipes) and air side (trunking) during re-fitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing / trunking including drilling / tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the HE/ATU.

HEs, Ventilation cooler & ATUs- Cleaning of air side (Submarines)_Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure.

Fresh water cooler (Submarines)_(a) Removal of fresh water cooler from ship to shop floor to facilitate chemical cleaning with standard procedure. (b) Carry out dismantling for tubes cleaning (c) cleans the tubes with sea water. (d) Renew corrosion plugs as required. (e) Carry out the pressure testing after re assembling. (f) Shifting to ship for re-gutting.

Inter stage cooler (Submarines)_(a) Removal of inter stage cooler from ship to shop floor to facilitate chemical cleaning with standard procedure(tube internal passages with dituted H2SO4 and neutralization with caustic soda) both water side and air cavity. (b) Post cleaning pressure test as per manual (c) shifting to ship for re-fitment.

Cooler / condenser/ chiller- Removal & re-fitment (Submarines)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) Post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) Renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) Pressure testing up to 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (Submarines)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (Submarines)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Cooler / condenser/ chiller- Repairs& pressure testing (Submarines)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

HEs, Ventilation coolers & ATUs Cleaning of water side (P-17)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to be flushed through with fresh water.

HEs, Ventilation coolers & ATUs- Repairs (P-17)_(a) Post cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by Plugging of tube including manufacture of plug (Material : Copper)

HEs, Ventilation cooler & ATUs-Removal & refitment (P-17)_(a) Removal of ATU / HE including delagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, re-fitment of ATU/HE including associated system pipelines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets / joints of water (pipes) and air side (trunking) during re-fitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing / trunking including drilling / tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the HE/ATU.

HEs, Ventilation cooler & ATUs- Cleaning of air side (P-17)_Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure.

Fresh water cooler (P-17)_(a) Removal of fresh water cooler from ship to shop floor to facilitate chemical cleaning with standard procedure. (b) Carry out dismantling for tubes cleaning (c) cleans the tubes with sea water. (d) Renew corrosion plugs as required. (e) Carry out the pressure testing after re assembling. (f) Shifting to ship for re-gutting.

Inter stage cooler (P-17)_(a) Removal of inter stage cooler from ship to shop floor to facilitate chemical cleaning with standard procedure(tube internal passages with dituted H2SO4 and neutralization with caustic soda) both water side and air cavity. (b) Post cleaning pressure test as per manual (c) shifting to ship for re-fitment.

Cooler / condenser/ chiller- Removal & re-fitment (P-17)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) Post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) Renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) Pressure testing up to 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (P-17)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (P-17)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Cooler / condenser/ chiller- Repairs& pressure testing (P-17)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

HEs, Ventilation coolers & ATUs Cleaning of water side (IN Vessel)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to be flushed through with fresh water.

HEs, Ventilation coolers & ATUs- Repairs (IN Vessel)_(a) Post cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by Plugging of tube including manufacture of plug (Material : Copper)

HEs, Ventilation cooler & ATUs-Removal & refitment (IN Vessel)_(a) Removal of ATU / HE including delagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, re-fitment of ATU/HE including associated system pipelines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets / joints of water (pipes) and air side (trunking) during re-fitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing / trunking including drilling / tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the HE/ATU.

HEs, Ventilation cooler & ATUs- Cleaning of air side (IN Vessel)_Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure.

Fresh water cooler (IN Vessel)_(a) Removal of fresh water cooler from ship to shop floor to facilitate chemical cleaning with standard procedure. (b) Carry out dismantling for tubes cleaning (c) cleans the tubes with sea water. (d) Renew corrosion plugs as required. (e) Carry out the pressure testing after re assembling. (f) Shifting to ship for re-gutting.

Inter stage cooler (IN Vessel)_(a) Removal of inter stage cooler from ship to shop floor to facilitate chemical cleaning with standard procedure(tube internal passages with dituted H2SO4 and neutralization with caustic soda) both water side and air cavity. (b) Post cleaning pressure test as per manual (c) shifting to ship for re-fitment.

Cooler / condenser/ chiller- Removal & re-fitment (IN Veesel)_(a) Drain the liquid & isolate HE. Removal of end covers/ flanges including first pipe connections for making the heat exchanges ready for cleaning. (b) Post cleaning /repairs of the HE, boxing back of end covers / flanges and first pipe connections for making the system operational. (c) Renewal of Gaskets of HE end covers and pipe flanges and required fasteners. (d) Pressure testing up to 1 ½ times working pressure (nitrogen on gas side and hydraulic test on water side).

Cooler / condenser/ chiller-shifting (IN Vessel)_Removal and shifting of HE from ship to shop floor and back including re-fitment on foundation.

Cooler / condenser/ chiller-cleaning (IN Vessel)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Cooler / condenser/ chiller- Repairs& pressure testing (IN Vessel)_Undertaking blanking of leaking tubes post pressure testing. Material of blank – copper.

"Hydraulic oil cooler, shore chileed water cooler-cleaning (IN Vessel) "_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

Co co cooler, distilled water cooler -cleaning (IN Vessel)_(a) Inspect the tube sheets by opening end covers. (b) Insitu mechanical cleaning of water side of HE for de-scaling. (c) Shopfloor mechanical cleaning of water side of HE for de-scaling. (d) Insitu chemical cleaning of water side of HE as per standard norms. (e) Shopfloor chemical cleaning of water side of HE as per standard norms (f) Insitu mechanical cleaning of gas side by blowing through with moya oil. (g) shopfloor mechanical cleaning of gas side by blowing through with moya oil. (h) Renew corrosion plugs of standarded material and designed size.

BO & KL Cleaning of water side (IN Vessel)_(a) Chemical cleaning of water side using standard procedure (tube internal passages with Alkaline/ caustic soda and neutralization with fresh water). (b) Post chemical cleaning tubes to flushed through with fresh water

BO & KL – Repairs (IN Vessel)_(a) Post chemical cleaning of air and water side, any damage observed on the body is to be repaired by hot work or cold work post clearance from user dept and QC dept. (b) Repairs on leaky tubes by plugging of tube including manufacture of plug (Material: Copper)

BO & KL –Removal & refitment (IN Vessel)_(a) Removal of BO/KL including de-lagging, disconnecting first connections of system pipes lines, trunking, filters, shrouds, baffles and heating coils and shifting to shop floor or for facilitating INSITU cleaning. (b) Post repairs of the item, refitment of BO/KL including associated system pipe lines and trunking and proving of system onboard for air handling with permissible differential air pressure of the cooler. (c) Renewal of gaskets/ joints of water (pipes) and air side (trunking) during refitment. (d) Renewal of fasteners (Mat SS), water system pipe flanges etc as required. (e) Alignment of cooler with casing/ trunking including drilling/ tapping activities. (f) Prior to fitment, pressure testing up to 1 ½ times working pressure to be undertaken on the BO/KL.

BO & KL – cleaning of air side (IN Vessel)Mechanical cleaning of air side using standard procedure (physical/ water jet) followed by chemical cleaning of air side with caustic soda using standard procedure

Consumable Spares_Cooler / Condenser/ Chiller - Spares (Corvettes)

Consumable Spares_BO and KL - Spares(IN Vessel)

Consumable Spares_Cooler / Condenser/ Chiller - Spares(OPVs)

Consumable Spares_Cooler / Condenser/ Chiller - Spares(P-17)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares (OPVs)

Consumable Spares_Fresh water cooler - Spares(OPVs)

Consumable Spares_Cooler / Condenser/ Chiller - Spares (SNF)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares (Corvettes)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares (SNF)

Consumable Spares_Fresh water cooler - Spares (SNF)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares(LSTs)

Consumable Spares_Cooler / Condenser/ Chiller - Spares(LSTs)

Consumable Spares_Cooler / Condenser/ Chiller - Spares (FACs)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares(P-28)

Consumable Spares_Fresh water cooler - Spares(P-28)

Consumable Spares_Cooler / Condenser/ Chiller - Spares(P-28)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares (FACs)

Consumable Spares_Cooler / Condenser/ Chiller - Spares(LCUs)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares(Submarine)

Consumable Spares_Fresh water cooler - Spares(Submarine)

Consumable Spares_Cooler / Condenser/ Chiller - Spares (Submarine)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares(P-17)

Consumable Spares_Fresh water cooler - Spares (P-17)

Consumable Spares_HEs, Ventilation cooler & ATUs - Spares(IN Vessel)

Consumable Spares_Cooler / Condenser/ Chiller - Spares(IN Vessel)

Consumable Spares_Hydraulic oil cooler, shore chilled water cooler - Spares(IN Vessel)

Consumable Spares_Coco cooler, Distilled water cooler - Spares(IN Vessel)

SRI VENKATA RAMA ENTERPRISES

Royalle Engineering Enterprise

IND-CHEM

Swamy Constructions

OM ENGINEERING

POONAM ENTERPRISES

Sri Sai Balaji Enterprises

SAGAR SHIP REPAIRERS AND MARINE SERVICES