WBPHED/09_08/AE-III/CMD/24-25

Amount

Cast iron double flanged Rising Spindle Sluice Valve generally confirming to IS 14846 having body door / dome / Bonnet and cover of cast Iron Gr FG 260, outside screen fising Spindle of IS 6603 Gr-12 cr-13, spindle nut & seat rings are Gunmetal as per IS; 318 LTB 2. Flanges flat faced and drilled to IS; 1538 Part IV & VI, Valves are suitable for maximum working pressure of 10/16 kg/sqcm (seat test) and body and antifriction device for ease of operation. All the valves should be tested by closed end method only. (Make IVI/ Any approved)

i. At Zone-I O.H.R. site 300 mm dia Butterfly Valve.

For fitting fixing of Sluice Valve / Butterfly Valve at following O.H.R. site after dismantling of defective Sluice Valve and necessary special carefully for fixing new alignment with Sluice Valve / Butterfly Valve (Supplied by Deptt.) by making necessary arrangement for skilled labour & mistry & derrick for fixing chain pulley block, lighting arrangement, tools & tackles also earth work as necessary, providing dewatering pump set etc. including supply of nuts & bolts, rubber gasket, stud nuts etc. for completion of the work to restore the water supply within 12 hours for each valve.

i. At Zone-I O.H.R. site 300 mm dia Butterfly Valve.

Supply and delivery at site of 25 KVA, 3phase, oil cooled type Servo Motor operated copper wound line voltage corrector conforming to IS-9815 (Pt.-1)- 1994 suitable for un-balanced input voltage with following specification including first filling oil as per IS-335 where applicable. a) Input Voltage:- 3 phase, Main supply may or may not be balanced with respect to Phase to Phase- 200V-500V Phase to Neutral-115V-290V. b) Output voltage:-3 phase balanced output voltage. Phase to Phase- 400Vor 415V± 1%, Phase to Neutral230V-240V ± 1% (Provision should be made to adjust the Variation of output voltage per phase by a variable pot oil within ± 5% of output). c) Line regulation:- Out put voltage should remain well with ±1% of set voltage (From Minimum to Maximum i.e. either 400V. or 415V. Supply variation). d) Load regulation : Output voltage should remain neutral well within ±1% of set voltage be ( From no load to full load ) i.e. either 400V. or 415V. e) Correction speed:- Better than 35 Volt / Second. f) Efficiency:- Better than 95% on full load. g) Cut off limit (minimum & maximum ) by limit switch with Audio & Visual.

Installation of above supplied Stabilizer by supplying all required materials with socket, gland, fittings etc. by skilled technical personnel as per requirement with making double eathing arrangement of the stabilizer in complaince with IE rules by G.I pipe electrode of 50mm dia 3mtr. long of 2 nos quantity by suitable GI strip / bar (25mm x 6mm) with all other accessories reuired to complete the work as per direction of EIC with commissioning earthing building including testing after Commissioning.

Add: @ 18% GST of Sl. No:1.00 to Sl. No: 4.00

Add: @ 1% Cess of Sl. No:1.00 to Sl. No: 5.00

SATYAJIT GHOSH (BID ID -5789521)

Massk Engineering Works (BID ID -5789530)