Maintenance of pipeline by repairing of leakage , washing of existing pipeline, all other allied works at Bru settlement camp under Bokafa RD Block under DWS Sub-Division Santirbazar during the year 2025-26.

Charges for repairing of leakage in UPVC / HDPE pipe line with PVC coupler & solvent cement etc. including necessary earth excavation, backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. complete as per specification & direction of the Engineer-in-charge.

i. 90 mm OD

ii. 110 mm OD

iii. 140 mm OD

Charges for fixing C.I. sluice valves with cap complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) as per chapter 20 of CPWD specification and direction of the Engineer - in - charge.

B. PN - 1.6 i. 80 mm dia.

B. PN - 1.6 ii. 100 mm dia.

B. PN - 1.6 iii. 125 mm dia.

B. PN - 1.6 iv. 150 mm dia.

Providing and fixing C.I. sluice valves ( with cap ) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) as per CPWD specification and direction of the Engineer - in - charge. PN:- 1.6 for All S/V

(iii) 80 mm dia.

(iv) 100 mm dia.

(v) 125 mm dia.

(vi) 150 mm dia.

Providing, fixing and laying flanged fabricated UPVC tailpiece with MS flange ( 8 mm thick ) conforming to IS : 10124 ( Part 6 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

(v) 90 mm dia.

(vi) 110 mm dia.

(vii) 140 mm dia.

Providing & fitting fixing of G.I. flange ( 10 mm wall thickness) by welding with G.I. / MS pipe and placing position as per specification and the direction of the Engineer-in-charge.

(v) 80 mm dia.

(vi) 100 mm dia.

(vii) 125 mm dia.

Providing and fixing C.I. non-return valve of approved quality as per of CPWD specification and direction of the Engineer - in - charge.

iv. 100 mm nominal bore

iii. 80 mm nominal bore

Clearing of deposit iron inside of laying PVC (90/110/140mm dia ) in/c excavation trenching for 100mtr .Layed pipe line required width and depth after 20mtr distance 3mtr longs in every 100mtr. Clearing through UPVC coil pipe & Laying the some the necessary coupler & solvent cement.etc(Solvent coupler will be issued by the Deptt. at free of Cost)

Clearing of deposit iron inside of laid of CI pipeline dia (80/100/125/150mm ) and dismantling old ci pipe in/c trenching for 100mtr. Layed pipe line of required width and depth cutting earth 25mtr distance and 12mtr long s in each 336mtr trenching cutting for every 100mtr pipe iron through PVC coil pipe after clearing , washing laying the same with rubber gasket pipe layed joint as per direction of the Engineer in charge ( Pig lead will be issued by the dept at free of cost but ribberr gasket & other T&P arrange by the Agency.

Providing and fitting fixing of GI tyton joints collar with rubber gasket fitted with MS flat & M.S squite bars at both ends in/c nuts & bolts washer & painting with anticorrosible black bitamestic paint etc Complete. i. 150mm dia

Providing, fixing and laying fabricated UPVC socket / coupler conforming to IS : 10124 ( Part 2 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

90 mm dia

110 mm dia

140 mm dia

Excavating trenches of required width for pipes, cables etc. including excavation for sockets, dressing of sides where required, ramming of bottoms, depth up to 1500 mm including getting out the excavated soil and backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil with all required leads as per Chapter - 2 of CPWD specification and direction of the Engineer - in - charge. A. For UPVC pipes in new work (a. In all kinds of soil)

i. For pipes not exceeding 90 mm dia

ii.For pipes exceeding 90 mm dia but not exceeding 300 mm dia

B. For G.I. / C.I. / D.I. pipes in new work ii.For pipes exceeding 90 mm dia but not exceeding 300 mm dia

Dismantling old C.I. / D.I. pipes including excavation and refilling trenches after taking out the pipes, breaking lead caulked joints, melting of lead and making into blocks including stacking of pipes at site lead up to 50 meter as per CPWD specification and direction of the Engineer - in - charge.

(ii) 100 mm OD

(iv) 150 mm OD

Charges for dismantling PVC / HDPE pipe after necessary excavation of earth including washing and stacking of pipes properly at site with all leads and lifts and backfilling of soil as required in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. complete as per specification & direction of the Engineer-in charge.

(i) 90 mm OD

(ii) 110 mm OD

(iii) 140 mm OD

Charges for fixing and laying rigid UPVC pipes jointing with couplers, solvent cement including testing of joints complete ( excluding the cost of pipes, couplers, solvent cement which are to be issued from the department free of cost and specials like bend, tees etc. which will be paid separately ) as per CPWD specification and direction of the Engineer - in - charge. A. Class - 3 ( working pressure 6.0 kg / cm2)

v. 90 mm dia

vi.110 mm dia

vii.140 mm dia

Charges for laying S & S Centrifugally Cast ( Spun ) Ductile Iron Class K-7 Pipes conforming to IS : 8329 as per CPWD specification and direction of the Engineer - in - charge. A. Class - 3 ( working pressure 6.0 kg / cm2)

100 mm dia

150 mm dia

Providing and laying D.I. specials of class K - 12 suitable for push - on jointing as per IS : 9523 as per CPWD specification and direction of the Engineer - in - charge. (i) Up to 300 mm dia

Providing, fixing and laying fabricated UPVC end cap conforming to IS : 10124 ( Part 4 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

v. 90 mm dia

vi.110 mm dia

vii.140 mm dia

Providing, fixing and laying fabricated UPVC bend of required degree conforming to IS : 10124 ( part 8 / 9 / 10 / 11 / 12 / 13 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

(i) 90mm dia

(ii) 110mm dia

(iii) 140mm dia

Providing, fixing and laying fabricated UPVC equal tee conforming to IS : 10124 ( Part 5 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

(i) 90 x 90 mm dia

(ii) 110 x 110 mm dia

(iii) 140 x 140 mm dia

Providing, fixing and laying fabricated UPVC straight reducer conforming to IS : 10124 ( Part 3 ) with solvent cement conforming to IS : 14182 including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge.

(i) 110 x 90 mm dia

(ii) 140 x 110 mm dia

(iv) 160 x 140 mm dia

Making road crossing by horizontal boring for smooth laying of UPVC / CI / DI / GI pipes etc. of required dia complete as per specification and the direction of the Engineer-in-charge. B) By Manual Means

Providing and laying of flexible PVC pipe (conforming to IS:7634) complete as per specification and direction of the Engineer - in - charge (cost of earth work and fittings will be paid separately)

(i) 15 mm OD

(iii) 25 mm OD

(iv) 32 mm OD

Providing and fixing brass ferrule with C.I. cover conforming to IS : 2692 including boring and tapping the main as per CPWD specification and direction of the Engineer - in - charge. (ii) 15 mm dia nominal bore

Providing and fitting fixing PVC / plastic bib cock conforming to IS : 9763 in hydrant points at different location as per specification & direction of the Engineer-in-charge. i) 15 mm dia PVC /plastic bib cock

Providing and fixing G.I. union as per CPWD specification and direction of the Engineer - in - charge.

i. 15 mm dia

v. 40 mm dia

Providing and fixing G.I. socket as per CPWD specification and direction of the Engineer - in - charge.

i. 15 mm dia

v. 40 mm dia

Providing and fixing G.I. Bend /elbow in the pipe line including testing of joints complete as per CPWD specification and direction of the Engineer - in - charge. i. 15 mm dia

Providing, fixing and laying rigid UPVC pipes conforming to IS : 4985 jointing with couplers, of same class conforming to IS : 10124 ( Pt-II ) with solvent cement conforming to IS : 14182 including testing of joints complete ( but excluding the cost of specials like bend, tees etc. which will be paid separately) as per CPWD specification and direction of the Engineer - in - charge. A. Class - 3 ( working pressure 6.0 kg / cm2)

(i) 90 mm OD

(i) 110 mm OD

(i) 140 mm OD

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