Tender For Renewal/ Repair Of Raw Water Duplex Strainer Assembly, Header Type D,B,F, Working Pressure 7Kg/Cm2 By Replacing The Outer As Well As Inner Layer Mesh With New Ss Material Wire Mesh (Outer Mesh Size 1000 Micron) Compatible To Working Condit
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Tender for Renewal/ Repair Of Raw Water Duplex Strainer Assembly, Header Type D,B,F, Working Pressure 7Kg/Cm2 By Replacing The Outer As Well As Inner Layer Mesh With New Ss Material Wire Mesh (Outer Mesh Size 1000 Micron) Compatible To Working Condition Installed At 3X33.33 Mw Uhl Stage-Iii Hep, Bvpcl, Chullah Tehsil Joginder Nagar, Distt. Mandi, H.P.
BOQ
| Sl. No. | Item Description |
| 1 | Renewal/ repair of RAW Water duplex strainer assembly, for 14\\" header type Duplex basket strainer.Scope of Work :-1. Dismantling & Stripping: De-welding and removal of all damaged filter wire mesh, crushed perforated cylinder sheets, and degraded structural components without damaging the reusable top angled ring frames and guide structures.2. Supply & Replacement of Filter Mesh: Supply and precision installation of brand-new, premium quality SS 304 / SS 316 wire mesh conforming strictly to 1000 Micron filtration rating as per original drawing specifications.3. Supply & Fabrication of Backup Perforated Sheets: Fabrication and rolling of new stainless steel (SS 304 / SS 316) perforated support cylinders (Ø6 mm holes, 18 SWG) ensuring proper radial support to withstand hydraulic flow stresses.4. Flange Trueing, Straightening & Handle Refabrication: Trueing, dimensional re-alignment, and hydraulic straightening of distorted top oval/angled clamping flanges (CS IS:2062 Gr. A/B or SS) and handles to ensure zero-bypass leak-proof seating inside the strainer chamber.5. Welding & Structural Assembly: Argon/TIG welding of screens, perforated cylinders, support rings, and core elements. All welds must be uniform, clean, free from crevices, pinholes, or slag inclusions.6. Surface Finishing & Protection: Complete pickling and passivation of all stainless-steel surfaces, shot/wire-brush cleaning of carbon steel components, and application of suitable industrial anti-corrosive primer/coating. Please Enable Macros to View BoQ information |
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