NIT 3 Item 3

Modification of 500 mm dia Sluice Valves (Back Wash Valves) for filter bed no. 17,18,19,21,22,23 installed at South Filter House, HP-I by carrying out the following works. Dismantling of drive spindle from the top of the redacted C.I hand wheel & other one Intermediate shaft couple etc. Making and arrangement to dismantling of Sluice Valve upper dome (C.I) by all nut bolt by gas cutter etc. and taking out upper dome from the main body of valve to safer side of in the Filter house. Taking out C.I. flap of sluice valve from the main body of sluice valve by same special arrangements. Taking all the material from the site to ground level by manual heavy labour arrangement to loading the truck for work shop for amendment of parts.

Making a arrangement of at the top of C.I Pedestal for thrust bearing arrangement by M.S. block of size 200x200x30mm Plate duly drilling and fixing by L.N bolt with internal threading etc.

Repairing of GM Nut seat in CI flap by cutting of old damaged seat and fixing of new seat by nut bolts etc. as required by job.

Providing of S.S Shaft 40 mm dia X 5.5 Mtr. Long in two pieces along with S.S Coupler of size 75 X 200 mm complete with required size pin etc.

Making a C.I. / M.S. block in place of G.M Nut of Sluice Valve for lifting of sluice valve along with S.S Rod of size 55mm Dia, Length – 1.5 mtr. long duly machining. Fixing in C.I / M.S Block duly welding etc. and also making threading for coupler & also making gland dooming seat in shaft.

Providing of Thrust bearing No. 51211. Make – SKF / FAG

Providing of C.I./M.S. bearing housing for thrust bearing

GM nut with attachment with bearing housing and rotation arrangement

Providing of C.I./M.S. handle wheel as per requirement of drive arrangement of sluice valve.

Assembling of complete valve along with parts with new drive arrangement with same special type teo leg chain block arrangement with nut bolt packing and gland bolt etc. as per requirement.

Testing and commissioning

Darshan Engineering Works