NCTPS I ES Circle EM I Division SDn V GM H2 Plant Minor repair works cleaning and painting of Low Pressure Hydrogen Gas Holders and their auxiliaries pipe lines Hydrogen Oxygen and Nitrogen gas pipe lines DM water tank with auxiliaries pipe

Amount

Charges for cleaning the outer surface of water tank Hydrogen, Oxygen and Nitrogen gas pipe lines, DM water tank with auxiliaries pipe lines and Control Panels and painting with one coat of red oxide paint 2 coats of enamel paint.

Epoxy painting of Low Pressure Hydrogen Gas Holder by one coat of epoxy priemer and two coat of expoxy HB coal tar paint.

Maintenance of Hydrogen Gas holder 1) Purging of hydrogen gas in the gas holder by nitrogen gas and air. 2) Draining of Seal water completely and pumped to auxiliary cooling water pump house. 3) Opening of man hole of the inner tank. 4) Closing of man hole of the inner tank. 5) Filling of Seal water. 6) Purging of air by nitrogen and hydrogen

Maintenance of Hydrogen gas holder cleaning of wire rope applying new grease and checking the free movement of the inner tank.

Maintenance of Hydrogen gas holder cleaning of muddy sediments in the bottom of the gas holder.

Maintenance of Hydrogen gas holder. A) Lifting the inner tank of the gas holder to the maximum height above the outer tank. B) Checking of all welding joints and rewelding. C) Checking the alignment of inner tank of the gas holder guide tube with centre support. D) Renewal of Worn-out bolt and nuts.

consumables

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