Kolkata Municipal Corporation Tender

Fabricating M.S. Specials of different diameter in shop out of 8 mm to 12 mm thick M.S plates supplied depart-mentally, cutting the plates to exact size & shape by gas cutting device and/or by adopting any other approved type of mechanical means, bending the same in true curvature by template and rolling machine of approved design including proper marking, levelling joints followed by electric arc welding - longitudinal and circumferential, as necessary, using standard electrodes as per I.S.specification including edge preparation, electricity charges and hydraulic testing of the fabricated piece all complete as per specification and direction of the Engineer-in-Charge.[ The Engineer-in-Charge shall approve the electrodes for are welding before use. Fabrication of M.S. flange to form M.S Flanged Tail Piece shall not be considered as M.S. special ] a) Diameter from 450 mm & upto 600 mm.ii) 10 mm thick plate

Supplying and fabricating 20 mm to 32mm thick (finished thickness) M.S flange. properly ribbed, one face machined, including drilling holes as perstandard table, fitting and fixing the same with M.S. pipe by electric arc welding as per relevant I.S. specification using standard electrodes and direction of the Engineer-in-Charge. [ The Engineer-in-Charge shall approve the electrodes for arc welding before use] 600mm dia

Supplying and fabricating 20 mm to 32mm thick (finished thickness) M.S.Blank Flange properly ribbed, one face machined including drilling holes as per standard table, fitting and fixing the same with M.S. flanged pipe with supply of nuts, bolts, washers, gasket etc. of best quality all complete as per specification and direction of the Engineer-in-charge.700mm dia.

Gas cutting of M.S. pipes and/or M.S. plates of different thickness all complete as per specification and direction of the Engineer-in- Charge. Thikness in mm 5mm to 8mm thick plate

Welding in M.S. structural work with gas or electric: (a) Tack weld

Field welding of M.S. plate by means of electric arc welding as per relevent IS specification using standard electrodes including edge preparation and charges of deployment of electric generator set with fuel, lubricant, and allother tools and plants all complete as per specification and direction of Engineer-in-Charge.[Engineer-in-Charge shall approve the electrodes for arc welding before use ]Throat thickness in mm 12mm

Supplying and fabricating 20 mm to 32mm thick (finished thickness) M.S flange. properly ribbed, one face machined, including drilling holes as perstandard table, fitting and fixing the same with M.S. pipe by electric arc welding as per relevant I.S. specification using standard electrodes and direction of the Engineer-in-Charge. [ The Engineer-in-Charge shall approve the electrodes for arc welding before use] 1200mm dia

Lowering, fitting and fixing of all types of valves in proper position and alignment using chain pully block or crane(for diameter above 250 mm) by providing temporary support,as required,gaskets,nuts& bolts etc.all cornplete as per specification and direction of the Engineer-in-Charge.[The rate Includes cost of flange joints]1200mm dia.

M.S PLATE AS PER IS : 2062 -2011/LATEST REVISION, MAKE : SAIL/ TATA/JINDAL B) ABOVE 2 MM UPTO 10 MM THICKNESS

I.S.M.B AS PER IS : 2062 -2011/LATEST REVISION, MAKE : SAIL/TATA/JINDAL A) UP TO 200 X 100

Supplying, fitting, fixing bolts with nuts, washer (i) 10 to 16 mm dia: (a) Length up to 75 mm

M.S FLAT AS PER IS : 2062 -2011/LATEST REVISION, MAKE : SAIL/TATA/JINDAL A) UPTO 50 X DIFFERENT THICKNESS

Sypply of E.R.W.M.S. (Electrical Resistant Welded M.S.) black pipe of ISI Mark as per relevent IS Specification ( heavy quality ) having wall thickness not less than 5 mm. [N.B.: The rates for supply of TATA Make pipe will be arrived at by adding 20% of the corresponding rates ] Diameter in mm (Internal)150

Ductile iron double flanged manually operated sluice valve generally conforming to IS : 14846, having body, door, dome, gland in graded ductile iron to IS 1865, four faces and spindle nut of gun metal to IS : 318, inside screw non- rising stainless steel AISI-410 spindle valves suitable formaximum working pressure of 10 kg/cm... and body tested 15 kg/cm..., flanges flat faced and drilled to IS: 1538 :1993. Valves tested by closed end method only. 350mm and above valves are complete with enclosed gear box with anti friction device.Diameter in mm 150

Supply of M.S. Flange (slipper type) as per IS-6392 TABLE 17 Thickness - 20mm -22mm NB Diameter in mm 150

M.S. blank Flange as per IS-6392 TABLE 20 for 50 mm to size & for 200mm & above as IS -6329 Table-14)thickness 20mm-22mm NB Diameter in mm 150

Flange joint to C.l./D.l/MS. pipes and specials including supply of rubber gasket.nuts. bolts. washers etc. of best quality to make the joint watertight at required hydraulic pressure all complete as per specification & direction of the Engineer-in-Charge. Diameter in mm 150mm dia.

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75 m. as directed. The item includes necessary trimming the sides of trenches,levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1,500 mm.

Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity)

Single Brick Flat Soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand.

Cement concrete with graded stone ballast (40 mm size excluding shuttering)In ground floor(A) [Pakur Variety](a) 1:3:6 proportion

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups, binders etc initial straightening and removal of loose rust (if necessary), cutting to requisite length, hooking and bending to correct shape, placing in proper position and binding with 16 gauge black annealed wire at every intersection, complete as per drawing and direction.(a) For works in foundation and upto roof of ground floor/upto 4 m.(i) Tor steel/Mild Steel.I. SAIL/ TATA/RINL.

Hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs,beams and columns, lintels curved or straight including fitting, fixing and striking out after completion of works (upto roof of ground floor).(When the height of a particular floor is more than 4 m the equivalent floor height shall be taken as 4 m and extra for works beyond the initial 4 m ht. shall be allowed under 12 (e) for every 4 m or part thereof).(a) 25 mm to 30 mm thick wooden shuttering as per decision & direction of Engineer-In-Charge.Notes:- For shuttering in shell roof, grid roof with vertical faces folded plate, arched roof the rate in 36 (a), 36 (b) & 37 (c ) of subhead B above to be increased by 100 % . For grid roof with splayed faces, rate is to be increased by 150%.

Removal of rubbish, earth etc. from the working site and disposal of thesame beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning thesite in all respect as per direction of Engineer in charge.

Hire charges of moveable crane with fuel & manpower having load handling capacity upto 14MT with the 45 deg.moveable arrangement & the boom length of 40 feets for loading & unloading of various materials / accessories of water supply works. For minimum engagement of 8 hrs. In a day

Coating of 'Epoxy' Resin of thickness not less than 160 micron with a lowviscosity, crystallization-resistant epoxy resin base with a reactive diluents combined with high build epoxy amine adducts as per BS5493 standard and a polyamide or amido polyamine or any other suitable hardener. It shall react with epoxy resin at normal ambient temperature, suitable for solvent-free coatings as per recommended proportion for use on metal,concrete and wood surface to protect from corrosion as well as damagefrom chemical reaction after making the surface free from dust, oil and moisture etc. all complete as per instruction and to the satisfaction of ElC. [This item will be operated on prior permission from the concerned SE/Dy Chief Engineer]

Estimated amount

Add: 18%GST

1% LWC