Stress relieving of Channel Flanges of Heat Exchangers

Amount

Stress relieving of channel flanges of Heavy End Condenser E-215 No.of channel flanges: 2 Nos Outside Diameter of channel flange: 825 mm Inside Diameter of channel flange: 670 mm Thickness of channel flange : 38 mm thk Drawing no:1715669 PWHT cycle Loading Temperature - 300°C Heating Rate - 150°C/hr (Max) Holding Temperature - 610°C ±10°C Holding Time – 20 minutes (Min) Cooling Rate - 150°C/hr (Max) upto 300°C and thereafter cool in still air. Entire works shall be done as per special conditions of contract, general conditions of contract and as per instructions of engineer-in-charge.

Stress relieving of channel flanges of condensing column cooler A No.of channel flanges: 2 Nos Outside Diameter of channel flange: 690 mm Inside Diameter of channel flange: 566 mm Thickness of channel flange: 43 mm thk Drawing no:1715692 PWHT cycle Loading Temperature - 300°C Heating Rate - 150°C/hr (Max) Holding Temperature - 610°C ±10°C Holding Time – 20 minutes (Min) Cooling Rate - 150°C/hr (Max) upto 300°C and thereafter cool in still air. Entire works shall be done as per special conditions of contract, general conditions of contract and as per instructions of engineer-in-charge.

Stress relieving of channel flanges of condensing column cooler B No.of channel flanges: 2 Nos Outside Diameter of channel flange: 690 mm Inside Diameter of channel flange: 566 mm Thickness of channel flange: 43 mm thk Drawing no:1715692 PWHT cycle Loading Temperature - 300°C Heating Rate - 150°C/hr (Max) Holding Temperature - 610°C ±10°C Holding Time – 20 minutes (Min) Cooling Rate - 150°C/hr (Max) upto 300°C and thereafter cool in still air. Entire works shall be done as per special conditions of contract, general conditions of contract and as per instructions of engineer-in-charge.

Stress relieving of channel flanges of condensing column cooler C No.of channel flanges: 2 Nos Outside Diameter of channel flange: 690 mm Inside Diameter of channel flange: 566 mm Thickness of channel flange: 43 mm thk Drawing no:1715692 PWHT cycle Loading Temperature - 300°C Heating Rate - 150°C/hr (Max) Holding Temperature - 610°C ±10°C Holding Time – 20 minutes (Min) Cooling Rate - 150°C/hr (Max) upto 300°C and thereafter cool in still air. Entire works shall be done as per special conditions of contract, general conditions of contract and as per instructions of engineer-in-charge.

Stress relieving of channel flanges of condensing column cooler D No.of channel flanges: 2 Nos Outside Diameter of channel flange: 690 mm Inside Diameter of channel flange: 566 mm Thickness of channel flange : 43 mm thk Drawing no:1715692 PWHT cycle Loading Temperature - 300°C Heating Rate - 150°C/hr (Max) Holding Temperature - 610°C ±10°C Holding Time – 20 minutes (Min) Cooling Rate - 150°C/hr (Max) upto 300°C and thereafter cool in still air. Entire works shall be done as per special conditions of contract, general conditions of contract and as per instructions of engineer-in-charge

COCHIN HEATERS (BID ID -3227089)