Description :
Tenders for Installation Of Various Instruments At Raidy & Dhataravdi-1 Irrigation Scheme - Item No.1:- Providing, Supplying, Installing, Testing, And Commissioning Of A V-notch Weir (mechanical Flow Measuring Device) For Measuring Low Flow Seepage In Dams. The Device Shall Have A Notch Angle Of 22.5°, 45°, 60°, Or 90° Depending On Discharge Range, A Stainless Steel Ss- 304/ss-316 Plate With Thickness Of 3-5 Mm, And Be Suitable For Measurement Ranges Of Approximately 0-50 L/s Depending On Notch Angle. The Weir Shall Have ±1% Fullscale Reading Accuracy, Operate Under 5-100% Humidity, Temperature -20°c To +60°c, And Provide Corrosion Protection Through Anti-corrosion Finish. Complete In All Respects As Directed By The Engineer-in-charge. (1) 90° V-notch-20 X 40 Secticin 15 Lit/sec , Item No.2:- Providing, Installing And Commissioning Permanent Ground Control Point (gcp) Settlemnt Marker Comprising Ms Base Plate (250×250×5 Mm Conforming To Is 2062), Gi Riser Pipe 25 Mm Dia (medium Class As Per Is 1239), Sand Filling (clean River Sand, Loose), Optional Pvc/gi Outer Casing (min 100 Mm Dia), Precast Concrete Cover (m20, 500×500×50 Mm With Central Hole), Ms/gi Reference Cap, And Painting In Black & White Checkerboard Pattern Using Weather-resistant Enamel Paint, Complete With Excavation, Installation, Alignment, And All Materials, Labour, Tools, And Accessories, Suitable For Survey Works Using Total Station / Drone Survey, Complete As Per Specifications And Direction Of Engineer-in-charge. , Item No.3:- Providing & Laying In Position 'nominal Mix' Cement Concrete Using Cement Sand And Crushed Aggregate By Machine Mix Incl. Necessary Formworks, Centering, Scaffolding Compaction By Mechanical Vibrator Curing As Directed With All Lead & Lift Etc. (c ) Concrete Grade 1:2:4 And Msa-40 Mm(graded)
