CLEANING AND MAINTENANCE OF WATER TANKS AND CONNECTING WORKS AT CIJWS VAIRENGTE MIL STN UNDER GE SILCHAR

Amount

Taking up or down GI tubing and connections in wall/ceiling/floor etc 15 mm dia bore of pipes all as specified.

Taking up or down GI tubing and connections in wall/ceiling/floor etc 20 mm dia bore of pipes all as specified.

Taking up or down GI tubing and connections in wall/ceiling/floor etc 25 mm dia bore of pipes all as specified.

Taking down cement plaster on brick/concrete surfaces including raking out joints, hacking for key scrubbing down with water complete all as directed.

Demolition of (unreinforced) cement concerete in ground floors and paving not exc 15cm thickness (below or above GL) all as specified.

Demolition of cement concerete of any description and in any position not otherwise specifically provided for all as directed

Fixing only old GI tubing of 15mm bore and connections in new or old position (walls, ceiling, floors, etc) including cleaning or returning the old screw threads as required complete all as specified Note : Serviceable GI tube obtained against item No.1 shall be reused.

Fixing only old GI tubing of 20mm bore and connections in new or old position (walls, ceiling, floors, etc) including cleaning or returning the old screw threads as required complete all as specified Note : Serviceable GI tube obtained against item No. 2 shall be reused.

Fixing only old GI tubing of 25mm bore and connections in new or old position (walls, ceiling, floors, etc) including cleaning or returning the old screw threads as required complete all as specified Note : Serviceable GI tube obtained against item No. 3 shall be reused.

Supply and fix 15mm bore GI tubing medium grade with all fittings and fixed to walls and ceilings or laid in floors all as specified.

Supply and fix 20mm bore GI tubing medium grade with all fittings and fixed to walls and ceilings or laid in floors all as specified.

Supply and fix 25mm bore GI tubing medium grade with all fittings and fixed to walls and ceilings or laid in floors all as specified.

Supply and fix in repairs 20 mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed all as specified.

Supply and fix in repairs 25 mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed all as specified.

Supply and fix 500 ltrs capacity Rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) hoisted and fixed in position all as specified in SSR Part I including taking down existing water tanks and removing to store all as specified and directed.

Supply and fix 1000 ltrs capacity Rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) hoisted and fixed in position all as specified in SSR Part I including taking down existing water tanks and removing to store all as specified and directed.

Supply and fix 2000 ltrs capacity Rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) hoisted and fixed in position all as specified in SSR Part I including taking down existing water tanks and removing to store all as specified and directed.

Disconnecting existing tanks (or lowering if required) for cleaning and removing all scale and dirt from the tank and mouth of circulating pipe and brushing if required and finally cleaned with mixture of bleaching powder with water and finally cleaning with clean water complete and refix the tank in original position and covered properly writing date of cleaning with white or yellow synthetic enamel paint or as directed in 75 mm size letters after cleaning removing and deleting old writing with black synthetic enamel paint complete all as specified and as directed for following capacity of tanks:-

Exceeding 250 ltr but not exceeding 500 ltrs

Exceeding 500 ltr but not exceeding 1000 ltrs

Exceeding 1000 ltr but not exceeding 2000 ltrs

Supply and fix PVC Manhole cover for PVC water storage tank with locking arrangement of capacity 500 to 2000 ltr complete all as specified and directed.

Supply and fix in repairs for 15mm Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed. (Minimum weight 142gms) complete all as specified

Supply and fix in repairs for 20mm Ball valves high pressure of PTMT with epoxy coated Aluminium rod & highdensity plastic ball screwed for iron pipe and fixed. (Minimum weight 210gm) complete all as specified

Supply and fix in repairs for 25mm Ball valves high pressure of PTMT with epoxy coated Aluminium rod & highdensity plastic ball screwed for iron pipe and fixed. (Minimum weight 455gms) complete all as specified

Material and labour for Rendering 15mm thick on fair faces of brick work or concrete surfaces in cement mortar 1:4 on wall surface and finishing even and fair complete all as specified

Material and labour for PCC 1:2:4, type B1, using 20 mm graded crushed stone aggregate, 40 mm thick as in floor/path/pavements and finished the surfaces even and fair all as specified and directed.

Material and labour for PCC 1:3:6, type C2, using 40 mm graded crushed stone aggregate, 75 mm thick as in sub base to floors/path/pavements and finished the surfaces even and fair all as specified and directed.

Material and labour for three coats of white wash to new plastered wall surfaces including preparation of surfaces all as specified

MS AFTAB LASKAR

M/S TAPAN KUMAR RAY

M/S P K ROY AND SONS

m/s builders and suppliers