REPAIR/ MAINTENANCE OF STP PLANTS EQUIPMENTS AND CONNECTED GI/ HDPE PIPE INCLUDING CONNECTED MISC E/M WORKS AT CGDA UNDER GE (E/M) BASE HOSPITAL DELHI CANTT-10

Amount

S&F in replacement Diffusers for sewage treatment Plant of capacity 20 KLD (STP Make- ION Exchange), length- 01 Metre, dia 75mm, type- bubble diffuser complete all as specified and as directed. Make: As per OEM specifications/ recommendations.

S&F in replacement fluidized/ MBBR (Moving Bed Bio film Reactor) special coated PVC Media, Size 22/16 for STP Plant of capacity 20 KLD (STP Make- ION Exchange) as per recommendation of Manufacturer complete all as specified and as directed. Make: Model No N-22-16 PVC of ION Exchange or Equivalent Model of Thermex/ Ureka fobes/ Fantus Water Ltd/ Delta or any other make As per OEM specifications/ recommendations.

S&F in replacement filter feed pump for sewage treatment Plant of capacity 20 KLD (STP Make- ION Exchange), with following specifications, along with starter control panel as per OEM recommendation with built in MCBs, on -off push button, RYB indicator, On -Off indicator etc complete all as specified and as directed:- Flow rate : 1000 LPH Material of Construction : Browns impeller & Shaft HP : 1 HP Head : 25 to 30 Metre.

S&F in replacement Air blower for STP of capacity 20 KLD (STP Make- ION Exchange), with following specifications, with starter control panel as per OEM recommendation with built in MCBs, on -off push button, RYB indicator, On -Off indicator etc complete all as specified and as directed:- Total Air Required : 73 Nm3/Hour Capacity of Blower : 75 Nm3/Hour Head of Blower : 0.37 Kg/Sqcm Motor HP/RPM : 3.0 / 1500

S&F in replacement Chemical dosing system (Chlorine Dosing System) for STP of capacity 20 KLD (STP Make- ION Exchange), with following specifications and including following parts and item complete all as specified and as directed:- (i) Chemical Tank Volume : 100 Litre (ii) Max. Frequency Strokes : 100 per Minuit (iii) Material of Construction for dosing system : HDPE (iv) Pump Discharge Capacity Flow Rate : 0 - 6 l/h (v) Material of Construction for pump : PVC (vi) Electronic diaphragm (made of high quality fabric reinforced EPDM) type metering pump. (vii) CI Foot valve with strainer on pump suction assembly.

S&F in replacement 2000 Litre capacity Rotational moulded polyethylene water storage tank, triple layered, food grade plastic (cylindrical, vertical with closed top), hoisted and fixed in position on existing wall, stage, roof or RCC staging complete all as specified in SSR Part-I including supply and connecting tank nipple, float valve etc., making complete connection of inlet and out let pipe, fixing of GI pipe (over flow) & washout to the nearest rain water drain complete all as specified and as directed.

S&F in replacement Multi grade Filter with vassal for STP of capacity 20 KLD (STP Make- ION Exchange), with following specifications complete all as specified and as directed:- Max. flow Rate : 6.0 Cum /Hour Inlet/Outlet connection : 50/50 mm Max. working pressure : 3.5 Kg/Sqcmg Dia : 21 Inch Height : 62 Inch Shipping weight : 450 Kg Working Weight : 550 mm Make: - Model No (NGMF-60) of ION Exchange or any other make As per OEM specifications/ recommendations.

S&F in replacement Activated Carbon filter with vassal for STP of capacity 20 KLD (STP Make- ION Exchange), with following specifications complete all as specified and as directed:- Max. flow Rate : 6.5 Cum /Hour Inlet/Outlet connection : 50/50 mm Max. working pressure : 3.5 Kg/Sqcmg Dia : 24 Inch Height : 72 Inch Shipping weight : 350 Kg Working height : 450 mm Make:- Model No NGMA-65 of ION Exchange or any other make As per OEM specifications/ recommendations.

S&F in replacement water softener plant for STP of capacity 20 KLD (STP Make- ION Exchange), with following specifications complete all as specified and as directed:- Max. flow Rate : 6.0 Cum /Hour Inlet/Outlet connection : 50/50 mm Max. working pressure : 3.5 Kg/Sqcmg Dia : 24 Inch Height : 72 Inch Resin Qty : 150 Litres Shipping weight : 350 Kg Working Height : 450 mm Make: - Model No NGS-6B of ION Exchange or any other make As per OEM specifications/ recommendations.

S&F in replacement 50mm dia stainless steel pipe, (wall thickness 1.65 mm) fabricated with SS-316 grade steel, along with connected fitting and fixtures, fixed in raw sewage water collection sump complete all as specified and as directed.

S&F in replacement 40mm dia stainless steel pipe, (wall thickness 1.65 mm) fabricated with SS-316 grade steel, along with connected fitting and fixtures, fixed in raw sewage water collection sump complete all as specified and as directed.

S&F in replacement 25mm dia stainless steel pipe, (wall thickness 1.65 mm) fabricated with SS-316 grade steel, along with connected fitting and fixtures, fixed in raw sewage water collection sump complete all as specified and as directed.

M&L in replacement cross arms, bracing supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers including welding, bending, cold or hot, drilling holes for bolts in any shape or size as indicated, inclusive of one coat of zinc chromate primer, one under coat & one finishing coat of good quality aluminium paint complete all as specified and as directed.

S&F in replacement in trenches/ fixing on wall galvanised steel water tubing of following sizes, medium grade including necessary fittings such as GI bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed:-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

S&F in replacement 75mm bore HDPE water tubing, pressure rating 10Kgf/Sqcm, including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

S&F in replacement 63mm bore HDPE water tubing, pressure rating 10Kgf/Sqcm, including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

S&F in replacement 40mm bore HDPE water tubing, pressure rating 10Kgf/Sqcm, including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

S&F in replacement 1000 Litre capacity Rotational moulded polyethylene water storage tank, triple layered, food grain plastic (cylindrical, vertical with closed top), hoisted and fixed in position on existing wall, stage, roof or RCC staging complete all as specified in SSR Part-I including supply and connecting tank nipple, float valve etc., making complete connection of inlet and out let pipe, fixing of GI pipe (over flow) & washout to the nearest rain water drain complete all as specified and as directed.

M&L for header made out of MS pipe, 80 mm bore, 6 mm thick, 3 metre length including cutting, welding, jointing suitable flanges etc and painting with two coats of synthetic enamel paint over and including a coat of red oxide primer for connecting different sizes of incoming and outgoing flanged pipes complete all as specified and as directed.

M&L Earthing complete with galvanised Iron earth plate electrode 600x600x6mm thick, burried directly in ground (earth pit not less than 2.25mtrdeep below GL) with top edge of the plate not less than 1.5 metre below normal ground level, surrounded with adequate quantity of charcoal dust mixed with salt to a packed thickness of 15cm all round the plate with using 4mm dia GI wire as earth wire electrode welded and revetted to earth plate at one end connected to main DBs of Building at another end GI earth wire encased in and including 15mm bore GI light grade pipe through upper end of earth plate up to main DB of bldg, with 20mm bore GI pipe light grade as water pipe from earth chamber to upper edge of earth plate, MS funnel with wire mesh fixed on water pipe including excavation earth work, Provn of PCC pit in PCC 1:2:4 type B-1 chamber and RCC pit cover 50mm thick precast RCC 1:2:4 type BI duly reinforced with MS bars 8mm dia @ 150 mm centre to centre, both ways complete with lifting handle all as shown in electrical plate No 3 of SSR of part-I complete all as specified and as directed.

Supply, fixing & connecting in replacement PVC insulated & PVC sheathed, flat industrial cable with 3 core multistranded copper conductor of size 6 Sqmm for Submersible Pump Motors, 1100 Volts, conforming to IS: 694, complete all as specified and as directed.

Supply, fixing & connecting in replacement PVC insulated & PVC sheathed, flat industrial cable with 3 core multistranded copper conductor of size 10 Sqmm for Submersible Pump Motors, 1100 Volts, conforming to IS: 694, complete all as specified and as directed.

Supply, laying, connecting & testing in replacement XLPE insulated, PVC inner sheathed, armoured with galvanised steel strip or wire, heavy duty, LT underground cable, ISI marked, with aluminium multistranded conductor, 1100 Volt grade, size 50 Sqmm, 3.5 core, laid in trenches/ duct or passing through pipe/ duct or fixed on pole including taking down old cable complete all as specified & as directed.

S&F in replacement CI butterfly valve, suitable for 80 mm bore pipe, conforming to IS 13095, flange type including nut, bolts & washers etc complete all as specified and as directed.

S&F in replacement 80mm outer dia UPVC pipe, class “A” conforming to IS 13592 including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

S&F in replacement 50mm outer dia UPVC pipe, class “A” conforming to IS 13592 including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

S&F in replacement 40mm outer dia UPVC pipe, class “A” conforming to IS 13592 including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

S&F in replacement PVC gate valve suitable for 40mm outer dia UPVC pipe, class “A” including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

S&F in replacement PVC gate valve suitable for 50mm outer dia UPVC pipe, class “A” including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

S&F in replacement PVC gate valve suitable for 80mm outer dia UPVC pipe, class “A” including necessary fittings such as bends, tee, union etc complete and connecting to water supply pipe line complete all as specified and as directed.

M&L for 100 mm thick PCC 1:2:4, type B2, using 40mm graded stone aggregates as in Path/Hard Standing including necessary steel form work including finishing the surfaces of concrete road, pavement by brooming including demolition of old PCC complete all as specified and as directed.

M&L in replacement Pre-cast cement concrete block masonry with factory made, solid blocks made out of PCC 1:3:6, exc. 10 cm in width and setting in cement mortar 1:6, including demolition of old masonry complete all as specified and as directed.

M&L 15mm thick rendering in cement mortar 1:6 on brick work or concrete surfaces and finish the surface even and smooth without using extra cement complete all as specified and as directed.

M&L for 100 mm thick PCC 1:4:8, type D2, using 40mm graded stone aggregates as in as in sub bases of floor, hard standing etc including demolition of old PCC complete all as specified and as directed.

Supply & laying in replacement 60mm thick, factory made, chamfered edge, cement concrete paver block, M-35 grade, with grey cement and pigment, of approved colour, design & pattern as in footpath, parks, lawns, drive ways or light traffic parking etc., of required size & shape, made by table vibratory method using PU mould, laid in required colour & pattern, over and including 50mm thick compacted bed of fine sand, compacting and proper embedding/ laying of inter locking paver blocks onto the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping entire surface complete all as specified and as directed.

S&F in replacement MS aeration tank with inner rubber coating of size 16 ft x 7 ft x 8 ft (L x B x H) made out of 5mm thick ms plate for STP including with suitable inlet and out let connection as per STP OEM recommendation complete all as specified and as directed by Engineer-in -Charge. Note:- Rate inclusive of supply, install, testing and commissioning of aeration tank on top of STP pump house with above specification with connected MS pipe connections, flanges, nut, bolts, gaskets and connected accessories including necessary PCC/RCC foundation on ground or on building with Bricks/PCC Blocks/Bars as per OEM recommendations deemed to be included in quoted rate and nothing extra shall be admissible in this regards.

Supply and filling cow dung complete all as specified and as directed.

M&L for chemical / bacterial analysis and portability testing of STP water at various level from Shri Ram Test House/ Micro- Engineering Testing Lab/ Bharat Test House or any other NABL approved lab and submitting the reports complete all as specified and as directed.

Supply, installation, testing and commissioning Non clog sewage submersible pump set, heavy duty, 1300 LPM, 18 Metre head (Flow and head) of 3 Phase, Phase, 415V, Max solid size 35 mm , with Cast Iron impeller, including necessary lifting chain and accessories in side Treated water well as per OEM recommendation including Supply & installation SS 306 lifting chain upto10 Metre length of size recommended as per OEM, water proof Control and power cables Appx 10 Metre length, Control and power panel for pump as supplied by OEM and describe below, Suitable size Discharge pipe PVC Hose with wire armoured as per OEM recommendation up to header Appx 10 Metre as per OEM recommendation, Butter fly valve -01 No and Non return valve -01 No flap type suitable for treated water application, Necessary Support, clamps and rubber gaskets and SS Nut bolts as recommended by OEM with the following specifications (as described in srl No 39.01 to 39.11) complete all as specified and as directed:-

PUMP CASING The radically split casing shall be provided with delivery nozzle cast integral with it. Suction is axial and delivery nozzle shall be central and horizontal, Specially designed semi-concentric casing results in reduced radial thrust and ensures vibration-free performance, wide volute passage ensures non-clogging operation of the pump.

IMPELLER Impellers shall be of non-clog type which allow smooth passage of solids .Impellers shall be with single or multi vanes in semi-open, enclosed, or free flow designs to cater to wide applications.

SHAFT The high tensile steel shaft accurately machined and ground shall be supported by two ball bearings in the motor above the impeller. Shaft shall be designed to transmit the power without undue vibrations and deflections. The shaft shall be common for pump and motor of Monoblock design.

MECHANICAL SEALS Two mechanical seals in tandem arrangement shall be provided to ensure no ingress of water or sewage in motor.

BEARINGS Bearings shall be grease lubricated and sealed for life and shall be maintenance free.

DRIVE Motor shall be dry type submersible and cooled by liquid being handled. Motors shall be air tested for leak free operation. Degree of protection for motor shall be IP68 as per IS:2147 Class of insulation : F Voltage : 415V+/-10% Frequency : 50 Hz+/-5%

CABLE Specially designed cable, 1.1 kV grade having annealed tinned copper conductor, insulated with Electron Beam Irradiated cross linked elastomeric compound (compatible for continuous operation at 1200 Degree C) cores laid up with a proof cotton binder tape and sheathed overall with Electron Beam Irradiated Cross-linked HD HOFR elastomeric compound and generally conforming to IS 9968 Part l. The cable shall be best resistance to acidic or alkaline sewage medium and to the effluent gases coming out of the sump. The cable shall be more flexible than PVC cable making coiling and handling easier and light in weight compared to PVC cable of the same size.

Outdoor type CONTROL PANEL (A) Control panel shall be equipped with fully automatic starters designed to operate pump motors of following specifications. Voltage: 415 V ± 10 % Frequency: 50 Hertz ± 5 % Phase: 3 Phases + Neutral Class of duty: Continuous Class of insulation: F Ingress Protection IP 54 1. Starter: Direct on line (DOL) or Star delta starting (SDS) as per OEM recommendation. 2. Switch: Three phase with neutral switch as per OEM recommendation. 3. Fuse: High rupturing capacity fuses (HRC) as per OEM recommendation

7. MOTOR PROTECTION UNIT MPU Will be supplied to suite the thermistor and moisture sensor in the pump. Contractor should responsible to mount this unit in their starter control panel. The space for the same should provide in outdoor control panel after consultation with pump set OEM. Features of MPU: • Protects pump motor against moisture in case of seal failure • Protects pump motor winding by detecting High winding Temperature • Din Rail Mounted compact unit can be placed in starter panel • Easy Interfacing with starter panels • LED indications for Moisture & High winding temperature

FLANGES Standard drilling to IS 6392 table 15.

Supply, install, testing and commissioning Non clog sewage submersible pump set heavy duty 2380 LPM, 24 Mtr head (Flow and head)of 3 Phase, 415 V, Max solid size 35 MM with Cast iron impeller , including necessary lifting chain and accessories in side Treated water well as per OEM recommendation including Supply & installation SS 306 lifting chain upto10 Mtr length of size recommended as per OEM, water proof Control and power cables Appx 10 Mtr length, Control and power panel for pump as supplied by OEM and describe below, Suitable size Discharge pipe PVC Hose with wire armored as per OEM recommendation upto header Appx 10 Mtr as per OEM recommendation, Butter fly valve -01 No and Non return valve -01 No Ball type suitable for sewage water application, Necessary Support, clamps and rubber gaskets and SS Nut bolts as recommended by OEM with the following specifications (as described in Srl No 40.01 to 40.11) complete all as specified and as directed:-

PUMP CASING The radically split casing shall be provided with delivery nozzle cast integral with it. Suction shall be axial and delivery nozzle shall be central and horizontal, Specially designed semi-concentric casing results in reduced radial thrust and ensures vibration-free performance, Wide volute passage ensures non-clogging operation of the pump.

IMPELLER Impellers shall be of non-clog type which allow smooth passage of solids. Impellers shall be with single or multi vanes in semi-open, enclosed, or free flow designs to cater to wide applications.

SHAFT The high tensile steel shaft accurately machined and ground shall be supported by two ball bearings in the motor above the impeller. Shaft shall be designed to transmit the power without undue vibrations and deflections. The shaft shall be common for pump and motor of Monoblock design.

MECHANICAL SEALS Two mechanical seals in tandem arrangement shall be provided to ensure no ingress of water or sewage in motor.

BEARINGS Bearings shall be grease lubricated and sealed for life and shall be maintenance free.

DRIVE Motor shall be dry type submersible and cooled by liquid being handled. Motors shall be air tested for leak free operation. Degree of protection for motor shall be IP68 as per IS:2147 Class of insulation : F Voltage : 415V+/-10% Frequency : 50 Hz+/-5%

CABLE Specially designed cable, 1.1 kV grade having annealed tinned copper conductor, insulated with Electron Beam Irradiated cross linked elastomeric compound (compatible for continuous operation at 1200 C) cores laid up with a proof cotton binder tape and sheathed overall with Electron Beam Irradiated Cross-linked HD HOFR elastomeric compound and generally conforming to IS 9968 Part l. The cable shall offers best resistance to acidic or alkaline sewage medium and to the effluent gases coming out of the sump. The cable shall be more flexible than PVC cable making coiling and handling easier and light in weight compared to PVC cable of the same size.

Out door type CONTROL PANEL (A) Control panel shall be equipped with fully automatic starters designed to operate pump motors of following specifications. Voltage: 415 V ± 10 % Frequency: 50 Hertz ± 5 % Phase: 3 Phases + Neutral Class of duty: Continuous Class of insulation: F Ingress Protection IP 54 1. Starter: Direct on line (DOL) or Star delta starting (SDS) as per OEM recommendation. 2. Switch: Three phase with neutral switch as per OEM recommendation. 3. Fuse: High rupturing capacity fuses (HRC) as per OEM recommendation.

7. MOTOR PROTECTION UNIT MPU Will be supplied to suite the thermistor and moisture sensor in the pump. Contractor should responsible to mount this unit in their starter control panel. The space for the same should provide in outdoor control panel after consultation with pump set OEM. Features of MPU: • Protects pump motor against moisture in case of seal failure • Protects pump motor winding by detecting High winding Temperature • Din Rail Mounted compact unit can be placed in starter panel • Easy Interfacing with starter panels • LED indications for Moisture & High winding temperature

FLANGES Standard drilling to IS 6392 table 15.

S&F in replacement 150mm ERW Steel Pipe, wall thickness 4.8 mm, as per IS 3589 (1981), including specials like bend, Tee, elbow, Flanges, Nut bolt and washers and rubber gaskets etc complete all as specified and as directed.

M&L for boring of holes under road/pavement hard standing up to 3mtr depth by trenchless technology using ultra sound technique and using GPRS technique, without damaging nearby existing pipe lines, gas pipe lines, power cables, sewage lines , Fibre optic etc and necessary machine including supply and laying /inserting HDPE pipe 250 mm Dia, Class PN-10 working pressure for casing and also supply and Inserting , jointing HDPE Pipe including specials of nominal dia 160 mm, PN-10 for carrying as per IS 4984 including jointing the pipes with clamp, socketed joints, reducers etc & testing, commissioning complete all as specified and as directed. Notes: (i) The Quoted rate shall deemed to be inclusive of cost of HDPE pipes (250mm & 160 mm), Trenchless Boring, GPRS and ultra sound technique for ground data survey, Necessary T & P and Labour including excavation and earth work for machine etc . (II) Any damage to external services as mentioned above shall be rectify by contractor without any cost to department. Department shall not be responsible for any damage and contractor shall arrange necessary Ground data survey machinery and T&P. Cost of the same shall deemed to be included in quoted rate.

M&L for header made out of MS pipe 300 mm dia , 6 mm thick , 3 m length including cutting, welding, jointing suitable flanges, gaskets etc and painting with two coats of synthetic enamel paint over and including a coat of red oxide primer with providing of opening with MS pipe tail pieces with flanges, nut bolts and gaskets of size 100 mm dia bore - 02 Nos (incoming from sewage pumps) and 150 mm dia -01 No (Outgoing) in header along with Supply & Fixing 150 mm MS pipe with bend, elbow, Flanges, Nut bolts and gaskets up to 3 Metre for connecting to DI pipe in ground complete all as specified and as directed.

M&L for construction of valve chamber of size 750x750x700mm (Internal dimensions) in PCC 1:3:6 Block masonry built in cement mortar 1:4 with MS cover 3 mm thick and locking arrangement including excavation and earth work, PCC (1:4:8) type D2 for foundation, PCC bed/copping in cement concrete (1:2:4) type B, plastering 15 mm thick with cement mortar (1:4), painting with one coat of red oxide primer and 2 coats of bituminous black paint on all steel surface including demolition of old chamber complete all as specified and as directed.

S&F in replacement Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe of following sizes complete all as specified and as directed:-

(a) 15 mm bore

(b) 20 mm bore

(c ) 25 mm bore

(d) 40 mm bore

(e) 50 mm bore

Excavation in trenches not exc 1.5 m wide and not exc 1.5 m in depth for foundation/ fixing pole/ laying cable and pipe line etc or for man hole etc not exc 10 Sqm on plan and getting out in soft/ loose soil complete all as specified and as directed.

M&L for providing dry river sand as in sand cushioning to under ground electric cable including punning down of sand in layer complete all as specified and as directed. Note: For measurement & payment purpose, punned thickness of sand only shall be considered.

Supply and Laying in replacement burn brick, sub class 'B', old size for cable covering complete all as specified and as directed.

Returning filling in including spreading, levelling, watering and well ramming in layers, not exceeding 25 cm thick using excavated soil complete all as specified and as directed.

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

CHEM-ECO ENGINEERS