NIT No- 1434/PHE(C)/BMC , Dated- 24/02/2026

Supplying, fitting and fixing PVC pipes for underground work of approved make of Schedule 80 (medium duty) conforming to ASTMD - 1785 and threaded to match with GI Pipes as per IS : 1239 (Part - I). with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple, longscrew, reducing socket, reducing tee, short piece etc. fitted including cost of all materials ,jointing materials, cutting pipes, making threads ,cutting trenches upto 1.5 metre below surface in all sorts of soil and refilling the same as directed complete in all respect. (Payment will be made on the centre line measurement of the total pipe line including all specials No separate payment will be made for accessories, specials.) PVC Pipes (Dia) : 100 mm

C.I. sluice valve with flanged ends drilled to as per I.S. 1358/62 and having all cast iron components as per I.S. 780/71 solid forged bronze inside screw spindle having ultimate tensile strength not less than 4.72 MT per sq. cm. Spindle nut valve and seat faces of hard wear resisting, manufactured from best quality gunmetal conforming to I.S. 780/71, painted black all over with asphalt base paint tested to 21 kg (hydraulic pressure) per sq. cm., valve opening to anticlockwise direction, fitted and fixed complete. (iii) 100mm

Sluice valve chamber with C.I. heavy cover with locking arrangement, (weight not less than 25 kg) (size of chamber 450 mm X 600 mm inside upto 900 mm depth) 250 mm thick cement brick walls (6:1), 150 mm thick cement concrete (6:3:1) bed with stone chips, 20 mm thick cement plaster (6:1) for inside wall and 15 mm thick cement plaster (4:1) for outer walls including rounding corners.

Supplying, fitting and fixing of C.I. Mechanical Compression flexible Collar Couplings suitable for C.I. Spun Pipes (as per IS: 1536) and D.I Pipes (as per IS: 8329) complete with Sealing Rubber Gasket of EPDM quality (IS: 5382 / 1985 Type-4), Cast iron Follower Glands and Mild Steel Nut Bolts (Zinc Coated). The whole assembly should be mechanically and SI. No Description Unit rate 27 water Supply Works 2018-2019 hydraulically tested to the provisions as laid down in IS: 1538. Filling and fixing should be in proper postion with proper care of main pipe line of leak proof condition. Diameter in mm (I) 100mm

Supplying including cost of installation of C.I. Mechanical joint All Socket Tee as dimensionally described in IS: 13382/2004 (With Modified Socket). Each Tee consists of One C.I. Body, Three C.I. Follower Glands, Three sealing Rubber Gaskets of EPDM quality (Conforming to IS:5382/85 Type-4) and Zinc coated M.S. Fasteners . The whole assembly is mechanically and hydraulically tested to provisions as laid down in IS: 13382/2004. 150 x 150 x 100

Renewing specials only of cast iron spun pipe conforming to I.S. 1536/1976 including cutting trenches in any soil or through masonry, concrete etc., if necessary and mending good damages including jointing with Tyton joints as per manufacturer's specifications excluding the cost of concrete or masonry work, if required, but including the cost of filling up trenches (for all dia. specials, payment will be made on the basis of actual weight of the specials)

Making weight connection with existing C.I main including the main by diamond cutting removing pipes from the trenches insertion of specials in collar , T etc. in proper level from fitting with pipes and special under water (100mm. Dia to 350 mm. Dia

Dewatering by pumps including all leads, lifts and making all arrangements of disposal. where continuous flow of water from a source other than natural or ground water is encountered in case of emergency maintenance works related to leakage. breakage and making wet connections.

Single Brick Flat Soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand.

Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity)

Supplying and laying Polythene Sheet (150gm / sq.m.) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches.

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes. (i) Pakur Variety