Delhi University has published Repair Of Damaged Pipe Line And Refilling / Servicing Of Psf And Asf And Replacement Of Air Diffusers Including Cleaning Of Aeration Tank At Sewage Treatment Plant At Dhaka , University Of Delhi Repair Of Damaged Pipe Line And Refilling / Servicing Of. Submission Date for this Tender is 24-08-2021. Air Diffuser Tenders in North Campus Delhi. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Providing and fixing G.I. pipes complete with G.I. fittings and clamps, i/c cutting and making good the walls etc. Internal work - Exposed on wall |
| 2 | 40 mm dia nominal bore |
| 3 | 50 mm dia nominal bore |
| 4 | Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work |
| 5 | 65 mm dia nominal bore |
| 6 | 80 mm dia nominal bore |
| 7 | Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete : |
| 8 | 25 to 40 mm nominal bore |
| 9 | 50 to 80 mm nominal bore |
| 10 | Painting G.I. pipes and fittings with synthetic enamel white paint with two coats over a ready mixed priming coat, both of approved quality for new work : |
| 11 | 40 mm diameter pipe |
| 12 | 50 mm diameter pipe |
| 13 | Excavation work by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soils as directed, within a lead of 50 m.Ordinary rock |
| 14 | Dismantling G.I. pipes (external work) including excavation and refilling trenches after taking out the pipes, manually/ by mechanical means including stacking of pipes within 50 metres lead as per direction of Engineer-in-charge : Above 40 mm nominal bore |
| 15 | P/F G.I. flange 50 mm dia. With nut bolts, necessary fitting etc. complete. |
| 16 | P/F air diffusers for compressed air distribution of dia. 63 mm X 1000 mm long, silicone tube, make - Welcome/ Airmax/ equivalent |
| 17 | P/F Butterfly valve of size 65 mm dia. With flange etc. as required. |
| 18 | Sludge removal from areation tank of capacity 4 lac litres. |
| 19 | Cleaning of clarified water tank (1,20,000 ltr) & filter water tank (1,90,000 ltr) |
| 20 | Supplying/ removing/ refilling the multigrade pressure sand filter(PSF) & making the filter system functional after refilling etc. as required. |
| 21 | Supplying/ removing / refilling the activated carbon filter (ACF) & making the filter system functional after refilling etc. as required. |
| 22 | Dismantled materials/ sludge/ silt to be removed from site with mechanical transport outside the campus 10 km away. |
| 23 | P/F of Y-stranier 50 mm with flanges etc. i/c cutting and welding etc. as required at site i/c making arrangement for P/F of back wash pump. |
| 24 | P/F of Y-stranier 80 mm with flanges etc. i/c cutting and welding etc. as required at site i/c making arrangement for P/F of back wash pump. |
| 25 | P/F gun metal gate valve 40 mm dia. (DRP make or equivalent) of approved quality. |
| 26 | P/F gun metal gate valve 50 mm dia. (Leader /DRP sant make or equivalent) of approved quality etc. complete as per direction of Engineer-in Charge. |
| 27 | P/F water metre 50 mm dia. Of approved make etc. complete as per direction of Engineer-in charge. |
| 28 | Provision of super succion pump for evacution of sewage collection tank as per direction of Engineer-in Charge. |
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