Annual Rate Contract For Instrument Maintenance Jobs For Year 2020-21:-1 A ) Removal Of Control Valves From Pipelines At All Elevations In Plant, Pr. Rating Upto And Including 600 Lbs & Valve Body Size As Under : I ) Upto And Including 2” Ii ) Above 2”, Upto & Including 4” B ) Transportation Of Control Valves To & From Workshop. Pr. Rating Upto And Including 600 Lbs & Valve Body Size As Under: I ) Upto And Including 2” Ii ) Above 2”, Upto & Including 4” C ) Fixing Of Control Valves At All Elevations In Plant After Bringing From Workshop After Repairs, End Connections To Be Cleaned And New Gaskets To Be Provided, Pr. Rating Upto And Including 600 Lbs & Valve Body Size As Under : I ) Upto And Including 2” Ii ) Above 2”, Upto & Including 4” D ) Removal Of Control Valves From Pipelines At All Elevations In Plant, Pr. Rating > 600 Lbs & Valve Body Size As Under : I ) Upto And Including 2” Ii ) Above 2”, Upto & Including 4” E ) Transportation Of Control Valves To & From Workshop.Pr. Rating >600 Lbs & Valve Body Size As Under : I ) Upto And Including 2” Ii ) Above 2”, Upto & Including 4” F ) Fixing Of Control Valves At All Elevations In Plant After Bringing From Workshop After Repairs, End Connections To Be Cleaned And New Gaskets To Be Provided, Pr. Rating > 600 Lbs & Valve Body Size As Under : I ) Upto And Including 2” Ii ) Above 2”, Upto & Including 4” 2 A ) Removal Of Control Valve From Bonnet & Refixing, Old Gasket To Be Removed & New Gasket To Be Provided. Valve Body Size Upto & Including 6 B ) Removal Of Control Valve From Bonnet & Refixing, Old Gasket To Be Removed & New Gasket To Be Provided. Valve Body Size Above 6, Upto & Including 18. C ) Removal & Fixing Of Actuator Of Control Valve.Valve Body Size Upto & Including 8 D ) Removal & Fixing Of Actuator Of Control Valve.Valve Body Size Above 8”, Upto & Including 18 3 A ) Removal Of Different Type Flow Meters ( Oval Gear Meter / Magnetic / Mass ) Size Upto & Including 4 Irrespective Of Pr. Rating B ) Transportation To & From W / Shop Of Different Type Flow Meters ( Oval Gear Meter / Magnetic / Mass ) Irrespective Of Pr. Rating & Size. C ) Fixing Of Different Type Flow Meters ( Oval Gear Meter / Magnetic / Mass ) Size Upto & Including 4 Irrespective Of Pr. Rating. 4 A ) Removal Of Ultra Filter Size Upto & Including 4 B ) Fixing Of Ultra Filter Size Upto & Including 4 5 Removal & Refixing Of Orifice Plates At All Elevations In The Plant And Provision Of New Gaskets, For Following Line Size, All Pressure Ratings :- Upto & Including 4” 6 Fabrication, Clamping, Supporting, Painting Of Inclined Sheds On Junction Boxes And Instruments Etc. Made Of Ms Angle & Aluminum Sheet I ) Size 3 Feet X 2 Feet Ii ) Size 4 Feet X 2 Feet 7 A ) Complete Removal And Refixing Of Displacer Type / Capacitance Type / Magnetic Type / Cappilary Type / Level Transmitters, Level Gauges, Level Switches ( All Sizes And Pressure Ratings ) From Various Vessels At All Elevations In The Plant, And To Provide New Gaskets. B ) Transportation To & From Workshop Of Displacer Type / Capacitance Type / Magnetic Type / Level Transmitters, Level Gauges, Level Switches ( All Sizes And Pressure Ratings ) From Various Plants. 8 A ) Removal And Refixing Of Power Cylinders Of Dampers Etc. I ) Upto And Including 3 Dia. Ii ) Above 3 Upto And Including 6 Dia. B ) Transportation To & From Workshop Of Power Cylinder : I ) Upto And Including 3 Dia. Ii ) Above 3 Upto And Including 6 Dia. 9 Laying Of Cable Trays With Proper Angle Iron Supports ( Welding & Grouting Included ) , Also Proper Grouting Of Old Structures For Following Sizes Of Trays :- I ) 50 Mm Wide Cable Tray Ii ) 100 Mm Wide Cable Tray Iii ) 150 Mm Wide Cable Tray Iv ) 300 Mm Wide Cable Tray 10 Removal Of Old Corroded Cable Trays From Plant Of Following Sizes : I ) 50 Mm Wide Tray Ii ) 100 Mm Wide Tray Iii ) 150 Mm Wide Tray Iv ) 300 Mm Wide Tray 11 A ) Laying And Clamping Of Armoured Signal, Power, Conduite Pipes Or Thermocouple Extention Cables ( Armoured ) With Conductor Size Upto 2.5 Mm² On Cable Trays With Proper Glanding At Both Ends. Angles / Ducts, Of Sizes B ) Clamping & Fixing Of Already Layed Cable In Various Plants Of Following Sizes Having Bunch Up To 10-15 Cables : I ) 2 / 3 / 4 Core X 0.5 / 1.5 Mm² Ii ) 12 / 19 / 24 Core X 0.5 / 1.5 Mm² 12 Removal Of Signal, Power, Corroded Cables With Conduit Pipes Or Thermocouple Extention Cables ( Armoured ) With Conductor Size Upto 2.5 Mm2.. The Job Includes Opening Of Terminals, Unclamping From Trays Or Angle Irons Etc., Opening Of Glands At Both Ends, Transportation Of Cables To Storage Place From Site, Winding Of Removed Cable On Empty Cable Drums If Required. ( Irrespective Of No. Of Cores ) 13 Laying And Clamping Of Ss Tubes In Trays / Ducts / Angles, Making Connections At Both Ends Using Compression Fittings, Leakage Checking, Installation Of Associated Air Filter Regulators And Solenoid Valves Etc. Tubes In Following Sizes :- I ) 6 Mm Od Ss Tube Ii ) 10 Mm Od Ss Tube Iii ) 12 Mm Od Ss Tube 14 Removal Of Ss Tubes Upto 10 Mm Od Size From Trays / Ducts / Angles At Any Elevation After Disconnecting From Instruments & Transport To Store / Inst. Workshop ( If Required ) . 15 A ) Removal Of 2 / 3 Way Ex. Proof Electrical Junction Boxes. The Job Includes Removal Of Cables From Old Junction Boxes.All Cables & Jbs To Be Sent To Store / Inst.Workshop. B ) Fixing Of 2 / 3 Way Ex. Proof Electrical Junction Boxes. The Job Includes Mounting Of New Junction Box After Fabrication And Painting Of New Mounting Bracket And Cable Glanding. 16 A ) Removal 6 / 8 / 12 Way Ex. Proof Electrical Junction Boxes. The Job Includes Removal Of Cables From Old Junction Boxes.All Cables & Jbs Sent To Store / Inst. Workshop. B ) Fixing Of 6 / 8 / 12 Way Ex. Proof Electrical Junction Boxes. The Job Includes Mounting Of New Junction Box After Fabrication And Painting Of New Mounting Bracket And Cable Glanding. 17 Replacement Of Head Bolts Of Level Trolls At All Elevations In The Plant. ( Sixteen Bolts Per Lt ) 18 Removal And Refixing Of Flange Type Isolation Valves Of Level Trolls, Level Gauges, Level Switches At All Elevations In The Plant, Cleaning Of End Connections And Providing New Gaskets. Size Upto And Including : 50 Nb, Pn 250. 19 Removal Of Flange Type Isolation Valves Of Level Trolls, Level Gauges And Level Switches At All Elevations In The Plant And Providing Blind Flanges. Cleaning Of End Connections And New Gaskets To Be Provided Size Upto & Including : 50 Nb, Pn250. 20 A ) Removal Of Differential Pressure / Pressure Transmitters / Diaphrams Seal Type Pressure Gauges / Thermowells . ( I ) Diaphragm Seal Type Transmitters / Gauge With Or Without Capillary With Flange Size Upto & Including 80Mm. ( Ii ) Ordinary Transmitter / Gauge / Thermowells B ) Fixing Of Diaphragm Seal Type Differential Pressure / Pressure Transmitters / Pressure Gauges. ( I ) Diaphragm Seal Type Transmitters / Gauge With Or Without Capillary With Flange Size Upto & Including 80Mm. ( Ii ) Ordinary Transmitter / Gauge / / Thermowells C ) Transportation Of Differential Pressure / Pressure Transmitter / Pr. Gauge To & From Workshop ( I ) Diaphragm Seal Type Transmitters / Gauge With Or Without Capillary With Flange Size Upto & Including 80Mm. ( Ii ) Ordinary Transmitter / Gauge 21 Panel Cutting, Job Includes Hacksaw Cutting, Edge Preparation To Make The Cutout Suitable For Instrument Mounting. 22 Fabrication Of Mounting Frames And Supports For Instruments From Angle Irons / Flats / Channels Or Pipes, Applying Primer & Painting The Fabricated Frames / Supports. 23 A ) Tightening Of Flange Of Control Valve, Valve Body Size Up To And Including 4 B ) Replacement Of Flange Gaskets On Both Sides Of Control Valve , Valve Body Size Upto And Including 4 24A ) Removal / Fixing Of Any Flange At All Elevations In Plant, Pr. Rating Upto And Including 600 Lbs & Size As Under I ) Upto And Including 2” Ii ) Above 2”, Upto & Including 4” B ) Removal / Fixing Of Any Flange At All Elevations In Plant, Pr. Rating >600 Lbs & Size As Under : I ) Upto And Including 2” Ii ) Above 2”, Upto & Including 4”
