REPAIRS AND MAINTENANCE OF WATER SUPPLY PUMPSET STARTERS AND VALVES AT CVRDE AVADI

Amount

Disconnecting electrical connections of centrifugal pump set and decoupling the pump and motor, removing from the installed position by putting dummy plate to suction and delivery pipe, transporting to work shop. Disassemble the motor, removing the burnt out windings and cleaning the slot with CTC, rewinding the same with suitable super enameled copper conductor, insulating varnishing, removing, replacing the worn out bushes/ bearing and re-assembling motor and pump shaft repair by lathe work for proper alignment, replace gland rope, rubber coupling, washers, nuts and bolts or smooth function with one coat of primer & two coat of synthetic enamel paint after scraping the body surface of pump & motor with emery paper, writing letters, assemble the motor & pump set Transporting to site coupling, connecting electrical & pipe connections testing complete for following capacity all as specified and directed. (a) 30HP Pump set at pump house residential area.

M&L for Disconnecting and removing the existing monoblock pump set from the installed position by putting dummy plate to suction and delivery pipe line, transporting to workshop. Disassemble the motor removing the burnt out windings, cleaning slots with CTC, and rewinding the same with suitable super enameled copper conductor, insulating varnishing, removing, replacing the worn out bushes/ bearing and pump shaft repair by lathe work for proper alignment, replace gland rope, rubber coupling, washers, nuts and bolts for smooth function with one coat of primer & two coat of synthetic enamel paint after scraping the body surface of pump & motor with emery paper, writing letters ,assemble the motor & pump set Transporting to site coupling, connecting electrical & pipe connections testing complete for 20HP cap at Residential area pump house complete all as specified and directed by Engineer-in-charge.

All as per above item No 2 but capacity 15 HP at Technical area pump house

All as per above item No 2 but capacity 15 HP at Residential area pump house

All as per above item No 2 but capacity 7.5 HP at Residential area pump house

All as per above item No 2 but capacity 7.5 HP at Technical area pump house

All as per above item No 2 but capacity 5 HP at Technical area pump house

All as per above item No 2 but capacity 5 HP at Residential area pump house

All as per above item No 2 but capacity 3HP at Residential area pump house

All as per above item No 2 but capacity 3HP at Technical area pump house

M&L for painting one coat of primer & two coat of synthetic enamel paint over pump set, foundation channel complete after scraping existing paint from surface with emery paper, writing letters of pump set capacity 30HP Centrifugal pump set at Technical area and Residential area complete all as specified and directed by Engineer-in-Charge.

All as per above item No. 11 but capacity 20HP monobloc pump set Technical area and Residential area

All as per above item No. 11 but capacity 15HP monobloc pump set at Technical area and Residential area

All as per above item No. 11 but capacity 7.5 HP pump set Technical area and Residential area

All as per above item No. 11 but capacity 5 HP pump set Technical area and Residential area

All as per above item No. 11 but capacity 3 HP pump set Technical area and Residential area

All as per above item No. 11 but capacity 15 HP monobloc pump set at Technical area and Residential area

All as per above item No. 11 but capacity 7.5 HP monobloc pump set at Technical area and Residential area

All as per above item No. 11 but capacity 5 HP monobloc pump set at Technical area and Residential area

S&F in replacement of Direct-On-Line starter in sheet metal enclosure Type MK suitable for motor rating upto 7.5HP, 415V, 50Hz relay range 13-22A complete all as specified and directed by Engineer-in-Charge.

S&F in replacement of fully automatic star delta starter in sheet metal enclosure Type MK 1F suitable for motor rating upto 15HP, 415V, 50Hz relay range 14-23A complete all as specified and directed by Engineer-in-Charge.

M&L for medium grade GI tubing 100mm dia with all fitting and fixed at suction & delivery line of pump set complete including taking down unserviceable GI 80mm all as specified and as directed by Engineer-in-Charge.

M&L for medium grade GI tubing 80mm dia with all fitting and fixed at suction & delivery line of pump set complete including taking down unserviceable GI 80mm all as specified and as directed by Engineer-in-Charge.

M&L for medium grade GI tubing 50mm dia with all fitting and fixed at sunction & delivery line of pump set complete including taking down unserviceable GI 50mm all as specified and as directed by Engineer-in-Charge.

M&L for medium grade GI tubing 40mm dia with all fitting and fixed at sunction & delivery line of pump set complete including taking down unserviceable GI 40mm all as specified and as directed by Engineer-in-Charge.

M&L for GI tubing 20mm dia medium grade pipe after disconnecting between pump house service tank& pump set (priming pipe) including taking down unserviceable tubes 20mm dia complete all as specified and as directed by Engineer-in-Charge.

Taking down cast iron 150mm water mains (including all fittings), with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as specified and as directed by Engineer-in-Charge.

M&L for Cast iron 150mm size pipes with flanged ends, centrifugally cast,class A, in any length laid in trenches complete all as specified and as directed by Engineer-in-Charge.

M&L for replacement of gunmetal globe/gate valve with iron wheel head, screwed both ends of 50 mm sizes ISI marked complete all as specified and as directed by Engineer-in-Charge.

M&L for replacement of gunmetal globe/gate valve with iron wheel head, screwed both ends of 40 mm sizes ISI marked complete all as specified and as directed by Engineer-in-Charge.

M&L for replacement of gunmetal globe/gate valve with iron wheel head, screwed both ends of 25 mm sizes ISI marked complete all as specified and as directed by Engineer-in-Charge.

M&L for removing old paint and apply one coat of primer & two coat of synthetic enamel paint over suction and discharge GI pipe line 40, 50 to 80mm dia including writing letters/marking arrow at water supply installation as specified supply Installation as specified and as directed by Engineer-in-Charge. Note : Tint of paint shall be as direction of AGE(I).

S&F chloroscope test kit with sheet metal enclosure box suitable for testing residual chlorine range ppm 0.1PPM to 2PPM at water supply installation including taking down unserviceable chloroscope complete all as specified and as directed by Engineer-in-Charge.

S&F fix valve chamber MS cover 6mm thick size 1200x900mm size including angle iron 40x40m size writing identification distribution area/ number by paint including unserviceable MS angle and sheet etc all as specified and as directed by Engineer-in-Charge.

M&L for replacement of fabricated MS angle iron/channel of any section and foundation bolts, nuts and washer made of of MS of suitable sizes including painting for motor/pump bed foundation including cement work with PCC in grouting etc complete all as specified and directed by Engr-in-charge.

Supply and fix water level indicatior mechanical type including suitable pully, stainless steel roap, float and MS level indicator scale with marking in 10cm scale for indicating 18m hight OHT water level at ground level complete including taking down unserviceable water level indicatior with accossories complete all as specified and as directed by Engineer-in-Charge.

Supply and fix water level indicatior mechanical type including suitable pully, stainless steel roap, float and MS level indicator scale, marking 10cm scale with suitable angle iron support ,painting for indicating UG sump water level at ground level complete including taking down unserviceable water level indicatior with accossories complete all as specified and as directed by Engineer-in-Charge.

S&F LED type Aviation Obstruction light Aluminium body, Red colour with Flashing operation controller fixed from top of the 20 mtrs stage OHT with suitable fixiing materials including taking down old fittings complete all as specified and directed by Engineer-in-Charge.

Supply and fix CI foot valve conforming to IS-4038 complete of size 50mm dia bore including necessary connection to CI pipe all as specified and as directed by Engineer-in-Charge.

Supply and fix CI foot valve conforming to IS-4038 complete of size 80mm dia bore including necessary connection to CI pipe all as specified and as directed by Engineer-in-Charge.

Supply and fix CI foot valve conforming to IS-4038 complete of size 100mm dia bore including necessary connection to CI pipe all as specified and as directed by Engineer-in-Charge.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m deep in Soft / Loose soil for taking out or laying of Pipes, Cables of any size etc. complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick of excavated soil complete all as specified and as directed. Note: A deduction of 10% shall be made from total computed volume of filling to cater in bulk irrespective of machinery used for ramming.

Removal of excavated material [Soil] to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

M&L for PCC 1:2:4 Type B1 with 20mm graded aggregate as in foundation, including rafts footing, mass concrete complete all as specified and directed by Engineer-in-Charge.

Ashwarya Enterprises

SARAVANA ENTERPRISES