Renovation of existing Pumping main, Submersible Pumpset, UG Cable, Panel board and accessories and replacement of damaged items at Erayangadu Headworks - Zone 1 vellore corporation

EARTH WORK EXCAVATION FOR PIPE LINE WORKS HAVING BED WIDTH OF 1.25M AND BELOW ON LINEAR MEASUREMENT BASIS

For DI Pipe Line -250mm dia

For PVC pipe Line - 90mm dia

Supply and Delivery of 250mm DI pipe k9 class DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K9 AS PER IS 8329/2000

250mm DI pipe k9 class

Supply and delivery of 250mm DI D/S bend 90 degree

Supply and delivery of 250mm DI D/S bend 45 degree

Supply and delivery of 250mm DI D/S bend 22.5 degree

Supply and delivery of 250mm DI D/S bend 11.25 degree

Supply and delivery of 250mm Mechanical joint collar

Supply and delivery of DI Flange special 250mm - 300mm dia

Supply and delivery of 250mm DI D/F Gate sluice valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron ofGrade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 ORing protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163-89/ISI 4846-2000/DIN 3202 F4

Lowering of 250mm D.I k9 Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.

Jointing of 250mm DI k9 pipes and specials with rubber gaskets (tylon joint) including cost of lubricants. (Including cost of jointing materials)

Jointing of 250mm Mechanical joint collar

Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admitting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty - 100 mm dia

Supply and delivery for existing sump of 20mm dia and above x 90mm to 120mm length fully threaded bolts and with nuts 2 Nos.

Supply and delivery of 3 ply RI Rubber Sheet SOR 25-26

Supply and delivery of UN PLASTICIZED PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 4985 /2000 - 90mm dia

Lowering PVC/ DWSC rigid pipes and specials to trench and laying to proper grade and alignment, jointing with PVC couplers with cement paste.(90mm to 110mm dia (OD) PVC pipe)

Supply and delivery of PVC Couplers fabricated 6 KSC - 90mm

Supply and delivery of PVC Bends fabricated 6 KSC - 90mm

Supply and delivery of PVC Elbow (Mould) BIS 7834/1975 Part VI - 90mm

Supply and delivery of PVC Equal Tee Fabricated 6 KSC - 90mm

Supply and delivery of G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004

80mm dia

100mm dia

Supply and delivery of GI reducer 100 mm x 80 mm

Supply and delivery of G.I. Equal Elbow plain

100mm dia

Supply and delivery of G.I. Equal Tee plain - 80mm dia

Supply and delivery of G.I. Flange set

100mm dia

80mm dia

Supply and delivery of G.M GATE VALVES AS PER IS BS 5154 and related IS Specifications

80mm dia

Supply and delivery of G.M NON RETURN VALVES AS PER IS BS 5154 and related IS Specifications

80mm dia

Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers

80mm to 100mm dia

REFILLING FOR PIPE LINE WORKS HAVING BED WIDTH OF 1.25M AND BELOW ON LINEAR MEASUREMENT BASIS

For DI Pipe Line - 250mm dia

For PVC pipe Line - 90mm dia

Reinforced Cement Concrete 1:2:4 mix (One Cement, Two Fine Sand and Four Coarse Aggregate) Using 20mm ISS HBG metal including all cost conveyance of materials and labour charges for curing, finishing but excluding centering,shuttering and cost of reinforcement grills, including vibrating charges etc. complete as per standard specification and as directed by departmental Engineers

Construction of 250mm Valve pit as per type design

Construction of 250mm x 80mm Air Valve pit as per type design

Removal of centrifugal pumpset/ jet pumps/ submersible pumpsets and its accessories from borewell/ open well for attending repairs 50% of the rates mentioned under item 17 (a), (b) (c) and (d) may be allowed for the respective Horse power

Above 5.00 HP to 10.00 HP

Above 10.00 HP to 20.00 HP

Supply and delivery of clear water vertical wet type submersible pumpset suitable for 150mm dia borewell conforming to IS 8034/2002 as amended thereafter and BEE 3 Star Rated capable of discharging300 LPM against 40m head of water column due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continous rated two pole suitable wet type vertical squirrel cage induction motor as per IS9283 /1995 as amended there after, suitable for operation in AC three phase 415 V+/- 10 %, 50 HZ +/- 5 %

Supply and delivery of Open well Submersible pump set conforming to IS 14220 /2002 and as amended thereafter and BEE 3 Star Rated capable of discharging 500 LPM and 25 m head the following duties due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze mixed type impeller, CI FG 200 grade casing and brass screws and rotor shall be of copper rod as per IS 613/1984 with ISI mark. The pump suitable for installation in sump with 1.1KV grade 3 core suitable copper flat submersible cable to a length of 15m with necessary cable joints. The non-return valve located at the top of the pump in the discharge outlet connection is to be designed with minimum friction. The pump should be directly coupled to 2880 RPM, three phase, 50 Hz (±5), 415V+6% & 415V-15% squirrel cage induction motor suitable for DOL upto 5 HP, Fully Automatic Air break Star Delta up to 20 HP and Auto Transformer starter for above 20 HP starting and for continuous operation.

Supply and delivery of Open well Submersible pump set conforming to IS 14220 /2002 and as 2000 lpm x40 m amended thereafter and BEE 3 Star Rated capable of discharging the following duties due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze mixed type impeller, CI FG 200 grade casing and brass screws and rotor shall be of copper rod as per IS 613/1984 with ISI mark. The pump suitable for installation in sump with 1.1KV grade 3 core suitable copper flat submersible cable to a length of 15m with necessary cable joints. The non-return valve located at the top of the pump in the discharge outlet connection is to be designed with minimum friction. The pump should be directly coupled to 2880 RPM, three phase, 50 Hz (±5), 415V+6% & 415V-15% squirrel cage induction motor suitable for DOL upto 5 HP, Fully Automatic Air break Star Delta up to 20 HP and Auto Transformer starter for above 20 HP starting and for continuous operation

Supply and Delivery of 250mm DI D/F Slanted seat Swing Check Valve. Body of ductile cast iron of Grade GGG 40 or equivalent grade and disc of ductile cast iron GGG 40 or equivalent grade with fully encapsulated EPDM rubber, where both faces can be used. Electrostatic epoxy powder / liquid coating (EP-P) inside and outside color blue RAL 5005 with minimum coating thickness of 250 microns..

Labour charges for the erection of submersible pumpset in borewell/openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days.

Above 5.00 HP to 10.00 HP

Above 10.00 HP to 20.00 HP

Supply and delivery of 250 A TPN switch disconnnector fuse units in sheet steel enclosure with HRC fuses Double break

Supply and delivery of 250A 3 phase 4 pole change over switch

Supply and delivery of L.T. CABLES 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 AND AS AMENDED THEREAFTER WITH ISI MARKING - 95sq.mm

CABLE LAYING - For laying below GL including earth work

Supply and delivery Up to 50HP/37 KW (which includes LT meter panel board, 6 Nos. suitable fuse carriers

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