TIRUPPUR CORPORATION_GF_Construction of Collection Sump Supply and Erection of 5HP Pump and Disposal to Existing Drain at Thirumalai Nagar in Ward No 24

Earthwork excavation for foundation in all soils and sub soils except in hard rock requiring blasting and depositing on bank with initial lead of 10m and initial lift of 2m inclusive of shoring, shuttering, bailing out water wherever necessary, refilling the foundation with excavated earth other than sandy soil in layers of not more than 150mm thick layers well rammed and depositing the surplus earth within the compound in place shown by the departmental officers and clearing and levelling the site etc,. complete.

Earthwork excavation for foundation in Soft Disintegrated Rock Laterite, Soft Rock or Kankar not requiring blasting etc., and sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam ordinary soil except in hard rock requiring blasting inclusive of shoring, shuttering and bailing out water wherever necessary, refilling etc., complete complying with standard specification.

Earthwork excavation for foundation in Medium Rock and Dense Medium Rock not requiring blasting etc., and sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam ordinary soil except in hard rock requiring blasting inclusive of shoring, shuttering and bailing out water wherever necessary, refilling etc., complete complying with standard specification.

Plain Cement concrete 1:4:8 [one cement, four M-sand and eight course aggregates] using 40mm size Hard Broken/Machine crushed Granite Stone Jelly including dewatering if found necessary and laid in layers of not more than 15cm thick and compacted etc., complete complying with standard specification.

Supplying, fabricating and placing in position of Steel Reinforcement using Mild Steel or Ribbed Tor steel bars for reinforcement to all RCC works as per the design given including cost of steel and binding wire also in all floors etc., complete complying with standard specification.

Supplying and erecting centering including necessary supports for the plane surfaces such as Drainage & Culvert Retaining walls etc., using mild steel sheets of size 90cm x 60cm and BG 10 stiffened with welded mild steel angles of size 25mm x 25mm x 3mm for boarding supported by casurina props of 10cm to 13cm dia spaced at suitable intervals etc., complete complying with standard specification.

Reinforced cement concrete 1:1½:3 [one cement, one and half M-Sand and three course aggregates] using 20mm size Hard Broken/Machine crushed Granite Stone Jelly for all RCC items of works excluding centering, shuttering and cost of reinforcement, including curing, fixing fan clamp and fixtures if necessary etc., complete complying with standard specification. 1.50m depth and upto 4.50m depth

Supplying and erecting centering for soffits of plane surfaces like RCC Slabs, Lintels, Sunshades, Square Columns, Staircase waists, Beams etc., including strutting 3m high using mild steel sheets of size 90cm x 60cm and BG 10 stiffened with M.S angles of size 25mm x 25mm x 3mm laid over silver Oak (C.W) joists of size 10cm x 6.5cm (spaced at about 90cm c/c) and supported by casurina props of 10cm to 13cm dia (spaced of 75cm c/c) etc., complete complying with standard specification.

Supply and delivery of submersible centrifugal sewage non-clog pumps, vertical spindle type pump , wear resistance with submersible motor for the various duty conditions. Pump shall be capable of handling min 100 mm solid size with sewage specific gravity of up to 1.05. Pump shall be of robust construction, Liquid passages shall be finished smooth and designed as to allow free passage to solids. Pump Impeller should be of Non-clog semi open type , single vane / multi vane preferably contra bloc or vortex impeller design. Double mechanical seal with silicon carbide faces should be provided to protect the motor from ingress of sewage along the shaft. The critical speed of the rotor shall be at least 30% above the operating speed. Pumps should have double bearings between the pump & motor. The bearings life shall be minimum 100,000 hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck foot bend, stainless steel guide pipe or related accessories of suitable size to facilitate lifting and lowering into guide rails for easy maintenance. Pump shall be provided with a stainless steel lifting chain conforming to BS 970 Gr 304. Pump speed shall be of 9600 rpm for high duty pumps and 960/1450 rpm for low duty pumpsets. Casing and impeller should be of CI Gr. FG 260:IS210 more preferably with hardened impeller.Shaft should be of stainless steel AISI 410. All the fasteners and bolts shall be of AISI 410.The submersible motor shall be operated with 3ph, 415 V(+or– 10%), 50Hz(+or-5 %) dry induction type. Motor shall be capable of giving rated output without reduction in the expected life span when operated continuously. The rotating assembly shall be dynamically balanced as per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star / Delta or ATS starting under any circumstances .The motor shall be suitable for full voltage star delta / ATS starting. The locked rotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall be designed to withstand 120% of rated speed for two minutes without any mechanical damage, in either direction of rotation. The motor vibration shall be within the limit specified in applicable standards . Motor should be of IE2, explosion proof compatible for VFD operation together with star-Delta /ATS starter, protection against increase in stator winding temperature (15 deg Celsius), bearing temperature, leakage in the stator housing and terminal box shall be provided and to be suitably interlocked with the control panel for tripping the pump in case of increase in temperature beyond set limit. Insulation class shall be of “Class H” and degree of protection shall be of IP 68 as

Supply and delivery of DI D/F Gate (sluice) valves (soft seated) resilient seated soft sealing Gate Valves (Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or GGG 50, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163-89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty

Earthwork excavation for foundation in all soils and sub soils except in hard rock requiring blasting and depositing on bank with initial lead of 10m and initial lift of 2m inclusive of shoring, shuttering, bailing out water wherever necessary, refilling the foundation with excavated earth other than sandy soil in layers of not more than 150mm thick layers well rammed and depositing the surplus earth within the compound in place shown by the departmental officers and clearing and levelling the site etc,. complete.

Check Valve 100mm

Supply and fixing of TNEB meter board suitable for32 A single phase service connection with 32 A fuse unit (500V) 32 A neutral link and earth link (1"x1/8" copper flat)on TW plank of size 375mm x 300mm x 19mm with supporting TW reepers of 1" thick an either side with painting with suitable bolt and nuts for fixing the TW plank on wal lwith earth connection and interconnection with 7/20PVC insulated copper wire from EB meter of use unit with 1No 40 Amp 30MA Double Pole RCD / RCCB (Lower End) with suitable necessary connection

Supplying and fixing in position of C.I Manhole cover (heavy duty with frame) of size 60cm x 60cm with best approved quality etc., complete as per standard specification.

110mm PVC Tee plain

110mm PVC Elbow plain

110mm PVC Couplers mould IS 7834/1975 part I

110mm x 160mm PVC Reducer

100mm Dia GI Bend

100mm Dia GI Coupling

100mm Dia GI Flange Set

Lowering PVC/ DWSC rigid pipes and specials to trench and laying to proper grade and alignment, jointing with PVC couplers with cement paste. 110 mm dia (6Ksc)

Supply, Erection, Installation and commissioning of Automatic pump control unit that can automatically switch pump operation between main & Standby Pumps. The Controller should also sense fault condition in the starter panel and respond in switching pump operation to the standby pump.

Supply, Delivery and Installation of 100mm dia 'B' class galvanised iron (GI) pipe (100mm dia)

UN PLASTICIZED PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 4985 /2000 including cost of materilas and labour charges. 110mm dia (6Ksc)

Fly Ash Brick work In CM 1:5 mix using best Fly Ash Bricks of size 230 x 110 x 70mm including finishing, curing etc., complete complying with standard specification.

Flooring with 20 / 30mm thick Cuddapah Slab over a base of CM 1:3 (one cement three M-sand), 20mm thick and pointed with cement mortar 1:3 using black oxide etc., complete complying with standard specification.

Plastering with cement mortar 1:5 mix (one cement five P-sand), 12mm thick in all floors using clean screened M-Sand and including cost of curing for fifteen days from the completion of the work and surface should free from undulations and including the cost of preparing the surface for plastering and protecting from other damages till setting of mortar etc., complete complying with standard specification.

Painting two coats with approved Cement Paint over cement plastered wall surface, ceiling and other new surface including cleaning, preparing the surface and curing etc., complete as per standard specification.

Supply and delivery of MS Kiosk of size 0.75m x 0.45m x 0.75m made up of MS angle of size 50mm x 50mmx 4mm alround covered with 16 gauge MS sheet and kiosk door made up of MS plates of size 25 mm x 3 mm including cutting, welding, grinding, locking arrangements and labour charges etc.,

Add G.S.T. @ 18%

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