tender for supplying of following di pipe (k9, k7) and fittings for connection of 3 nos. pump with ohr within tarakeswar municipality.-- 1 supply and delivery (at site) of di pipes conforming to is 8329: 2000. a)100 mm dia. (di k-9 pipes) 2 supply and delivery (at site) of di pipes conforming to is 8329: 2000. b) 150 mm dia. (di k-9 pipes) 3 all types of ductile iron (d.i) specials (viz. bend, tee, taper, tail piece etc), size conforming to i.s. specification no. 9523/2000 with cement mortar lining (inside) and bituminous coating (outside). (25% of payment will be held up till successful hydraulic testing)(i) 100 mm. dia. bend 90 4 (ii) 150 mm. dia. bend 90 5 (iii) 100 mm. dia. all socket tee 6 (iv) 150 mm. dia.all socket tee 7 (v) 100 mm. dia. flanged tee 8 (vi) 150 mm. dia. flanged tee 9 (vii) 100 mm. dia. double flanged bend 90 10 (viii) 150 mm. dia. double flanged bend 90 11 (ix) 100 mm. dia. double flanged tail/barrel pipepiece 12 (x) 150 mm. dia. double flanged tail /barrel pipe piece 13 (xi) 100 mm. dia. double flanged shortpiece 300 mm long 14 (xii) 100 mm. dia. double flangedshortlpiece 600 mm long 15 (xiii) 150 mm. dia. double flanged shortl piece 300 mm long 16 (xiv) 150 mm. dia. double flangedshort piece 600 mm long 17 (xv) 100 mm. dia. double flanged duck foot bends (90 degree ) 18 (xvi 150 mm. dia. double flanged duck foot bends (90 degree ) 19 (xvii 150x 100mm. dia. double flanged reducer 20 supply of flat rubber gasket of epdm quality with isi mark to is:5382/1985 type-4 suitable for flange joint, drilled to is: 1538 (table–vi).the gasket should have dual thickness 3/6 mm with 6 mm thickness atthe sealing cross section (i) 100 mm. dia. 21 (ii) 150 mm. dia. 22 supply of single/double bit sbr gasket suitable for jointing ci/dipressure pipes, conforming to is : 5382 : 1985 [popularly known as‘tyton gasket’] (i) 100 mm. dia. 23 (ii) 150 mm. dia. 24 ductile iron double flanged manually operated gate/sluice valve generallyconforming to is : 14846, having body, door, dome, gland in gradedductile iron to is 1865, four faces and spindle nut of gun metal to is : 318,inside screw non-rising stainless steel aisi-410 spindle valves suitablefor maximum working pressure of 10/16 kg/cm2 and body tested15/24 kg/cm2. flanges drilled to is: 1538 table 4 & 6. valves tested byclosed end method only. 350mm and above valves are complete withenclosed gear box with anti friction device. (a) 100mm dia 25 (b) 150mm dia 26 supply of m.s. flange plate (slipper type) as per is-6392 table 17 thickness - 20mm -22mm (a) 100mm dia 27 (b) 150mm dia 28 ci/di double flanged single door swing non-return valve generallyconforming to is 14846 having body, door cover in graded cast iron tois 210 gr. fg 200, body and door rings and bearing block of leadedtin bronze to i.s 318 gr. ltb 2, hinge pin of st aisi410 valves suitablefor maximum working pressure of 10/16 kg/cm2 and body tested15/24 kg/cm2. (a) 100mm dia 29 (b) 150mm dia 30 supplying of mechanial joint making mechanical joints c.i. specials of the following nominal diametre, including fitting, fixing and fasting follower gland, ruber insertion, bolts & nuts as per direction of the eic.(mechanical joint complete setwill be supplied departmentally free of cost.) (a) 100mm dia mechanical joint 31 (b) 150mm dia mechanical joint 32 (c) 200mm dia mechanical joint 33 supply of di flanged sockets joint (a) 100mm dia 34 (b) 150mm dia 35 supplying bolts with nuts matching with different dia. d.i. detachable joint as per is : 8794 -1988 with latest amendment. a) 10 to 25 mm dia.-75mm long 36 supply and delivery (at site) of di pipe fittings conforming to is 8329: 2000. (a) 100mm dia flange - spigot 37 (b) 150mm dia flange -spigot 38 supply and delivery (at site) of di pipe fittings conforming to is 8329: 2000.(a) 100mm dia collor joint 39 (b) 150mm dia collor joint