Providing 100 mm DI Pipeline (Distribution Main) from TPEVR Govt. Polytechnic near to Sivaramapuram, Ward No.56, Zone -lV in Vellore City Municipal Corporation

Earthwork excavation for Pipeline works for other than loose soil having Bed width of 1.25 m and below on Linear Measurement Basis

For 100 mm DI Pipeline (Width 0.75m Depth 1.05m) WD W 0661 TWAD 2025-26

Supply and delivery of 100 mm 6.0 DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 ISI make in good quality including cost of all material charges and all labour charges etc., complete as per standard specifications. WD -M0620 TWAD 2025-26

Supply, delivery and fixing of DI Specials & other specials including cost of all material charges and labour charges etc., complete as per Specifications

100 mm DI Tee (90 Degree D/S Bend) WD-M0778 TWAD 2025-26

100 mm DI Bend WD-M0778 TWAD 2024 WD -M0778 TWAD 2025-26

Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers WD -W 0245 TWAD 2025-26

Jointing the C.I/ D.I - S/S pipes and specials with molten lead and Yarn including caulking the joints. (Including cost of jointing materials) WD -W 0294 TWAD 2025-26

Refilling with excavated sand complying with standard specification in the narrow trenches in layers of 15cm thick after the pipe are laid jointed and tested and successfully as directed by the Department Officers in Linear Measurement basis

Supply and delivery of 100 mm DI D/F Gate (sluice) valves (soft seated) resilient seated soft sealing Gate Valves (Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or GGG 50, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring 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 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty (WD-M1199 TWAD SoR 25-26)

Construction of Valve Tank of size 1.20 x 1.20 x 1.50 m using Brick work in CM 1:5 mix, Necessary earth work 1.30 m depth, PCC 1:4:8 for base and plastering in cm 1:5 mix for surface and Cover slab of size 1.20m x 1.20 x 0.075m etc., as per standard specification (vide separate sheet)

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