Delhi Urban Shelter Improvement Board Tender

Supplying, assembling, lowering and fixing in vertical position in bore well, unplasticized PVC medium well casing (CM) pipe of required dia, conforming to IS: 12818, including required hire and labour charges, fittings& accessories etc. all complete, for all depths, as per direction of Engineer-in-charge.

150 mm nominal size dia

Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer- in-charge.

Supplying, assembling, lowering and fixing in vertical position in bore well unplasticized PVC medium well screen (RMS) pipes with ribs, conforming to IS: 12818, including hire & labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer-in-charge.

150 mm nominal size dia

Development of tube well in accordance with IS : 2800 (part I) and IS:11189, to establish maximum rate of usable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by “V” notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, i/c disinfection of tubewell, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge.

Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/ casing pipe, removable as per requirement, all complete for bore well of:

150 mm dia

Providing and fixing M.S. clamp of required dia to the top of casing/ housing pipe of tubewell as per IS: 2800 (part I), including necessary bolts & nuts of required size complete.

150 mm clamp

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I).

150 mm dia

Providing following submersible pump set and accessories i/c lowering of pump set suitable by tripod stand & chain pulley etc fixing of accessories & connections etc as reqd. (A) Duties of pump set:- i. Medium: clear water ii. Head range : 37-71 Mtr. iii. Discharge range : 6-2 cubic meter/Hr. iv. Delivery dia :40 mm v. Pump type : Make KSB (water cooled) vi. Motor details : Make KSB vii. Suitable for operational on 220v, 50 Hz single phase AC supply. (B) Control panel Board complete having Ammeter & Volt Meter starting and running capacitors , over load relay and ON/OFF push buttons (BCH/Havells make ) – 01 No. (C) G.M. NRV of size – 40 mm dia (ISI mark) – 01 No. (D) M. S. clamp set complete with nut bolts – 02 sets (E) M. S. bore cover cap – 01 No. (F) The item includes provision lowering /fixing testing and commissioning of afore said pump set and accessories as required by Engineer in charge.(MR)

S/F 40 mm dia G.I. Pipe ‘B’ class (Med. class) i/c making water tight connection etc as required ISI mark(MR).

S/F G.I. elbo/socket of size 40 mm dia i.c making water tight connection etc. as reqd. ISI mark (MR)

S/F of 3x2.5 sq mm PVC insulated and PVC sheathed stranded copper conductor flat submersible cable complete etc. as reqd. ISI mark (MR)

S/F i/c binding of 6mm dia steel rope for protection of submersible pump set complete etc. as reqd.(MR)

S/F of 25 mm dia G.I. Pipe ‘B’ class in soft soilcomplete etc. As reqd.(MR).

Add 31.27% as circulated by Delhi Govt.

Minus 9.5% as circulated by Delhi Govt.