Improvements to Existing Water Supply Distribution System and ProvidingHouse Service Connections to ThiruparappuTown Panchayat

Amount

Earth work excavation and depositing on bank within an initial lead of 10 m and following lift and classification of soils. For 1st depth of 0 m to 2 m In hard stiff clay, stiff black cotton, hard red earth, shales, murrams, gravel, stoneyearth and earth mixed with small sized boulders.

In soft disintegrated rock,laterite, kankar not requiring blasting

In medium rock and dence medium rock not requiring blasting

Hard rock measured in solid including blasting and stacking

Plain Cement concrete of mix 1:4:8 (one part of cement four part of crushed stone sand and eight part of aggregates) using 40 mm gauge machine broken granite stone jelly for foundation including de watering if found necessary and laid in layers of not more than 15 cm thick well rammed and consolidated etc complying with SS. 1.50m to 4.50m below GL

1.50m to 4.50m below GL

Plain cement concrete 1:1.5:3 (One cement, one and a half sand and three hard granite broken stone of 20mm size ISS gauge) including mixing, placing, ramming, finishing, curing etc., complete in accordance with specifications and as directed by TWAD Board Officers.

Plain Cement concrete 1:2:4 (one part of cement two part of crushed stone sand and four part of aggregates) using machine broken granite jelly of 40 mm size for all cement concrete works excluding cost of centering shuttering strutting and also cost of reinforcement grill in position but including laying vibrating with mechanical vibrators using finishing etc complete as directed by the departmental officers etc complete complying with SS.

Porous concrete in CC 1:4 (One cement and four hard broken granite jelly of a size 20mm) for steining of infiltration well excluding cost of centering but including curing etc., complete and as directed by the Engineers @ well curb including all labour charges etc, complete.

Providing and laying in position, Standardised Concrete Mix M‐30 Grade in accordance with IS:456‐2000, using 20 mm and down graded hard broken granite, stone jelly for all RCC items of works with minimum cement content of 400 kg/m³ and maximum water cement ratio of 0.45, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0 m³) 7730 Kg. of 20 mm machine crushed stone jelly and with about (3.3 m³) 5156 kg. of 10 ‐ 12 mm machine crushed stone jelly and with about (4.79 m³) 7670 Kg. of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary without claiming extra, etc complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standards. 1.5m to 4.5m below GL

Upto 1.5 m below G.L.

Upto 4.50 m ht. Above G.L.

From 4.50 m to 7.32 m ht. Above G.L.

From 7.32 m to 10.98 m ht. Above G.L.

From 10.98 m to 14.64 m ht. Above G.L.

From 14.64 m to 18.30m Above G.L.

From 18.3 m to 21.96m Above G.L.

Centering for soffits of RCC members including shuttering, strutting to the centering and providing supports etc. complete for the following members using MS sheets of suitable size of BG o10 stiffened with welded MS angle of size 25x25x3mm for boarding laid over I type of M.S. Truss of size 25x25x3mm spacing at about 90 cm C/C and supported by 40mm GI Pipe ( medium) spacing at 75mm c/c etc., complete complying with standard specifications for various heights and as directed by the TWAD Board Officers. The centering should be removed after the specified striping time of the concrete as per IS-456/1978. Square Column Column 0 to 3.3m ht above GL and below GL

Column above 3.3m to 4.3m ht from GL

column above 4.3 m to 5.3m ht from GL

column above 5.3 m to 6.3m ht from GL

column above 6.3 m to 7.3m ht from GL

Column above 7.3m to 8.3m ht from GL

column above 8.3 m to 9.3m ht from GL

column above 9.3 m to 10.3m ht from GL

column above 10.3 m to 11.3m ht from GL

column above 11.3 m to 12.3m ht from GL

column above 12.3 m to 13.3m ht from GL

column above 13.3 m to 14.3m ht from GL

column above 14.3 m to 15.3m ht from GL

column above 15.3 m to 16.3m ht from GL

Plain surface Below GL upto 3.3m

0 m to 3.3m ht above GL

3.3 m to 4.3m ht above GL

5.30 m to 6.30mabove G.L.

7.3 m to 8.3m ht above GL

8.30 m to 9.30mabove G.L.

11.3 m to 12.3m ht from GL

15.3 m to 16.3 m above GL

Circular Column Column 0 to 3.3m ht above GL and below GL

Column 3.3 to 4.3m ht above GL

Column 4.3 to 5.3m ht above GL

Column 5.3 to 6.3m ht above GL

Column 6.3 to 7.3m ht above GL

Column 7.3 to 8.3m ht above GL

Column 8.3 to 9.3m ht above GL

Column 9.3 to 10.3m ht above GL

Column 10.3 to 11.3m ht above GL

Column 11.3 to 12.3m ht above GL

Column 12.3 to 13.3m ht above GL

Column 13.3 to 14.3m ht above GL

Column 14.3 to 15.3m ht above GL

Curved surface From 0 to 3.3m from floor level

15.3 to 16.3m ht above GL

Supplying, fabricating & placing in position of Steel Reinforcement using mild steel or ribbed tar steel rods, for all RCC works as per the design given by the departmental officers including cost of steel cutting, bending, placing in position & binding with binding wire and all labour charges for cutting, bending, tying & placing in position etc.

Brick work in CM 1:6 (One cement and six sand) using country bricks of size 8.75" x4.25"x2" including curing etc., complete for parapet well alround roof slab as directed by TWAD Board officers.

Plastering in cement mortar 1:3 ‐ 12 mm thick Plastering the surface of walls with cement mortar 1:3 mix (one part of cement and three part of plastering sand) 12 mm thick finishing including cost and conveyance of all materials and labour charges for curing and all other incidental charges etc., complete complying with standard specification.

Plastering in cement mortar 1:4 ‐ 20 mm thick Plastering in cement mortar 1:4 mix (one part of cement and four part of plastering sand) 20 mm thick finishing including cost and conveyance of all materials and labour charges for curing and all other incidental charges etc complete complying with standard specification.

Plastering in CM 1:5 (One cement and five sand) - 12mm thick alround papapet over roof slab icluding finishing curing etc., omplete and as directed by TWAD board officers.

Special Ceiling plastering and finishing all RCC exposed surface such as RCC slabs, sunshade canopies, stair case steps, landing slab, etc. with cement mortar 1:3 (one part of cement three part of plastering sand) 10 mm thick including packing the surface and provided necessary cement mortar nosing, headings as per the size specification wherever necessary using the same mix as directed by the departmental officers etc. complete complying with standard specification

White washing 2 (two) coats using freshly burnt shell lime white in colour confirms in all floors. Adequate quantity of approved blue power to be added to white wash solution for application to the walls. of the room including the cost of materials labour charges etc., complete and as directed by TWAD Board Officers.

Colour washing 2 (two) coats with freshly burnt with best shell lime in all floors. Mineral colours not affected by lime shall be added to the white wash solution and applied. of the room including the cost of materials, labour charges, cleaning and preparation of the surface and curing etc., complete and as directed by TWAD Board Officers.

Painting the new walls two coats with one coat of priming with best cement paint of approved colour and quality including preparation of surface and finishing neatly etc complete complying with standard specification and as directed by the department officers.

Fabrication, supply, delivery and fixing of outside MS Ladder of 45cm clear wide made out of 50 mm x 50mm x 6mm MS angle for both sides and for steps at 30cm C/C welded jointed etc ., for I staging from GL to 1st level brace (weight 4.5kg/m) IInd and IIIrd staging upto floor slab and IVth staging from floor slab to roof top. Supply, delivery and fixing of 32 mm GI pipes medium for hand rails from I stage to IVth stage. RCC cum0 Grade mix for Landing slab 5 nos. at Ground Level- No and above Ground Level - 4Nos. Supply and fixing of 32mm GI pipe medium for hand rails for the Landing slab. Supplying and fixing of MS Base plate of 100mm X 100mm X 6mm thick for fixing Anchore fastener bolt for fixing of hand rails at Landing slab and MS Ladder providing locking arrangements with two coats of approved enamel paint over one coat of red oxide paint as per approved Type Design and as directed by TWAD board officers. For OHT Capacities

Supplying and fixing of cut stones set in CM 1:3 below the inlet pipe

Providing and fixing RCC inside access ladder of approved pattern and design in RCC 1:11/2:3 (One cement and one and half sand and three HBG stone of 20mm size ISS gauge) 0.40m width, 0.10m thickness, 0.12m breadth for side post, 0.05m thickness 0.12m breadth for steps with suitable inclination including cost of cement, reinforcement centering, finishing, curing etc., complete and as directed by TWAD Board Officers.

Supply and Delivery Fabrication of MS doors and windows with outer frame and shutter frame in MS angle of size 40mm x 40mm x 6 mm with MS flat 25mm x 25mm x 6mm and MS sheet of 18 gauge including ventilating arrangements using 20mm square MS rods with locking arrangements including two coats of approved enamel paint over coat of red oxide including cost of angles, plates, sheets, fabrication charges, cost of hold fast and transportation charges etc., complete. Fully panelled Double leaf – Door - 1.00m x2.10 m

Fully panelled Double leaf – Window - 0.60 m x 0.90 m

Supply, delivery and fixing in position of CI manhole cover (Heavy duty) of size 0.60 m x 0.60 m etc. complete and as directed by the TWAD Board officers.

Providing ventilating arrangements mosquito proof nylon net with 110mm PVC cowl and as directed by TWAD Board officers

Supply delivery and fixing of PVC Mould CI steps for sump in position at 30cm centre to centre in staggered manner and as directed by departmental officers.

Supply and fixing of pvc gratings of size 75 x 50 cm for fixing in the roof of the reservoir.

Refilling the sides of foundation with excavated earth (other than sand) in layers of 15cm thick,watered well rammed and consolidated etc. complete complying with standard specification removing and spreading the surplus earth at the places shown and as directed by the TWAD Board Officers.

Supply and filling with Crushed stone sand (M‐Sand) in layers complying with standard specification including consolidation and watering etc. complete and as directed by TWAD Board Officers.

Labour charges for Painting Emblem in accordance with the size and specifications as approved by the Board on the Service Reservoirs including cost of all consumables , one coat of base paint, scaffolding charges including painting logo on the Service Reservoir as per standard specificatons and as directed by the TWAD Board officers.

Sinking of infiltration well of 4.50m internal dia and 5.5m external dia below water level including ali incidental charges in light or sandy soil. 1st Depth of 2m

2nd Depth of 2m

3rd Depth of 2m

labour charges for Anchoring the pipes using MS Flat of size 50mm x 12mm (4.70 Kg/m) with bolts and nuts etc., complete excluding the cost of MS Flat, Bolts and Nuts etc.

Supply and delivery of Mild Steel flat 50 x 12 mm size and by weight (4.7 Kg / m)

Supply and delivery of bolts and nuts etc.,

Providing RCC spiral staircase as per approved design

Providing RCC hand rail of 1.2 m height around the top of the roof slab

Supply, delivery and fixing in position of water level indicator with float of approved pattern for inner and outer compartments including cost of materials etc. and as directed by the TWAD Board officers.

Floor finsihing with CM 1:3(one cement and three sand) 20mm thick including cost of materials, labour charges for finishing, curing etc., complete and as directed by TWAD Board Officers.

Painting the Doors, Windows & Ventilators on both sides with readymixed enamel paint two coats over priming coat of approved quality and colour including thorough scrapping clean removal of dirt etc. complete complying with standard specification including cost of paint and brushes, labour charges etc., and as directed by TWAD Board Officers. The colour and quality has to be approved by TWAD Board Officers.

Weathering course with broken Brick Jelly of 20 mm size in pure slaked lime (no sand to be used) over RCC Roof slab with proportion being 32:12 1/2 for required depth of 80mm thickness over the roof slab as required well beaten with wooden beaters for giving required slope complying with standard specification etc., complete and as directed by TWAD Board Officers.

Terrace Flooring with two course of flat tiles using of size 200mm x 200mm x 20mm laid in CM 1:3 (one cement and three sand) mixed with crude oil to 10% by weight of cement and pointed neatly with the same oiled morter etc., complete complying with standard specification and as directed by TWAD Board Officers.

Providing confirmatory bores to uncertain sand depth and locating well site before commencing as directed by departmental officers.

Providing for cutting edge using 12G MS sheets including the cost of fabricating welding and placing in position in the curb including supply of the MS sheet.

Plugging the bottom of the well with coarse sand of approved sizes and grade as directed by the Board officers.

Providing m M.S channel of ISLC 200 of 5.40m length each 2 nos including painting conveyance and fittings etc., complete as directed by the departmental officers.

Supply,delivery and filling of 20 mm size brick bats as per type design.

Supply,deliery ad filling of 40mm size brick batsas per type design.

Supply,deliery and fixing of splash pad of size 500 x 500 x 50mm at the over flow junction point with recharge pit.

Supply and delivery of PVC INSULATED AND SHEATHED 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1990 a. 16 Sq mm cable

a. 10 Sq mm cable

Supply and delivery of Open well Submersible pump set conforming to IS 14220 /2002 and as amended thereafter and BEE 3 Star Rated capable of discharging the following duties due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze mixed type impeller, CI FG 200 grade casing and brass screws and rotor shall be of copper rod as per IS 613/1984 with ISI mark. The pump suitable for installation in sump with 1.1KV grade 3 core suitable copper flat submersible cable to a length of 15m with necessary cable joints. The non-return valve located at the top of the pump in the discharge outlet connection is to be designed with minimum friction. The pump should be directly coupled to 2880 RPM, three phase, 50 Hz (±5), 415V+6% & 415V-15% squirrel cage induction motor suitable for DOL upto 5 HP, Fully Automatic Air break Star Delta up to 20 HP and Auto Transformer starter for above 20 HP starting and for continuous operation. 2500 lpm x80m head

Labour charges for the erection of submersible pumpset in borewell/openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days.

Labour for cutting open BT or Maccadam roads for laying water distribution lines etc complete as per standard specifications and as directed by the Engineer in-charge. Cemet Concrete Road

Bitumen Tar / WBM Road

Earthwork excavation and depositing on bank with an initial lead of 10m and initial lift of 2 m in trenches in other than loose soil, hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders SS 20B.the rates for earth work excavation and refilling for pipe line works having bed width of 1.25m and below on linear measurement basis. PVC Pipes 90mm diameter

110mm diameter

125mm diameter

140mm diameter

160mm diameter

180mm diameter

200mm diameter

DI / CI Pipes 100mm Diameter

150mm Diameter

200mm Diameter

250mm Diameter

Barricading work (Where, there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia and 1.80m height) vertical with horizontal poles in three rows including painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75mm dia reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by TWAD Board officers. (30% Pipe Length)

Barricading work (Where the lines are in narrow width of municipality area, busy streets like Market, Bus-stand and in the Highways etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia. and 1.80m height) vertical with horizontal poles in two rows, painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles and fixing 75mm dia. reflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by TWAD Board officers. (30% Pipe Length)

Supplying and conveying of following sizes of DI Class K7 SS Pipes to site, confirming to specification as per IS:8329-2000 for standard length including cost of pipes, testing charges at factory, labour charges for loading, unloading and stacking at site etc 100mm diameter

150mm diameter

200mm diameter

250mm diameter

Supplying and conveying of DI Socket and Spigot specials such as bends, tees, tapers, end caps etc of the following sizes (K7 class) to site, confirming to specification as per IS:9523-2000 including cost of specials, testing charges at factory, labour charges for loading, unloading and stacking at site etc 100mm diameter

150mm diameter

200mm diameter

250mm diameter

Supplying and conveying of following sizes of P100 PN6 HDPE pipes to site, confirming to specification as per IS:4984-2016 for standard length including cost of pipes inclucive of transportation charges to stockyard anywhere in tamilnadu , Unloading, stacking at stock yard and Conveyance from stock yard to site (maximum of 8Km radius) are extra. 90mm diameter

110mm diameter

125mm diameter

140mm diameter

160mm diameter

180mm diameter

200mm diameter

Supply and delivery of HDPE specials of conforming to IS specifications at site of work including all taxes, duties, loading, transportation, unloading, insurance etc., complete and as directed by Engineer incharge. Bends 90mm diameter

110mm diameter

125mm diameter

140mm diameter

160mm diameter

180mm diameter

200mm diameter

Tee 90mm diameter

110mm diameter

125mm diameter

140mm diameter

160mm diameter

180mm diameter

200mm diameter

Supply and delivery of the following GI, PVC Pipes & Specials including cost and conveyance of materials to site etc, complete.(TWAD) Pipes 32mm Dia GI Pipe B Class (TWAD) SL.No: 5-9

50mm Dia GI Pipe B Class (TWAD) SL.No: 5-6

Towards Labour charges for Pipe Laying works etc, complete. Cutting and Threading of GI pipes 32mm Dia GI Pipe B Class(TWAD) SL.No: 1A

50mm Dia GI Pipe B Class (TWAD) SL.No: 1A

Lowering of DI S&S Pipes (K7Class) and specials carefully into the trench and laying to proper grade and alignment including labour charges, incidental and operational charges etc complete as per standard specifications and as directed by the Departmental Engineer 100mm diameter

150mm diameter

200mm diameter

250mm diameter

Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers 90mm diameter

110mm diameter

125mm diameter

140mm diameter

160mm diameter

180mm diameter

200mm diameter

Jointing DI S/S pipes and specials with rubber gaskets ( tyton joint) including cost of lubricants, testing to the required pressure with water ( including cost of joining materials) 100mm diameter

150mm diameter

200mm diameter

250mm diameter

Jointing of C.I. D/F pipes & specials including cost of bolts and nuts and metal washer and R.I. Sheet of 6 mm thick and testing to the required pressure with water conveyed within 1 km lead upto 2 m depth for works above water level 100 mm dia.

80 mm dia.

Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. 90mm diameter

110mm diameter

125mm diameter

140mm diameter

160mm diameter

180mm diameter

200mm diameter

100mm Diameter

150mm Diameter

200mm Diameter

250mm Diameter

Testing of DI pipes with hydraulic testing equipment by filling with water (including cost of water Rs. 60/KL) and testing to recommended pressure in convenient stretches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges etc. complete and as directed by TWAD Board Officer for the following diametre of pipes 90mm diameter

110mm diameter

125mm diameter

140mm diameter

160mm diameter

180mm diameter

200mm diameter

Conveyance of excavated excess earth including loading, unloading and refilling as directed by the departmental officer etc., complete

Supplying and Conveying to site, the following CI Double Flanged Sluice Valves (PN 1.0) with cap of following sizes confirming to IS:14846, including flanged tail pieces and other specials as required, loading, unloading, transportation charges & stacking charges etc. 100mm diameter

Supplying and Conveying to site, for Double ball air valve , including CI flanged tail pieces and other specials as required, loading, unloading, transportation charges and stacking, including CI bends and pipe for discharge above ground level etc complete as per standard specifications and as directed by the Departmental Officers.. 80mm diameter

Constructing masonry chamber of inside dimensions as mentioned below with Class 1 designation, brick work in cement mortar 1:5 (1 cement : 5 coarse sand) for sluice valve, with CI Surface box 100 mm top diameter, 160 mm bottom diameter and 180 mm deep For Sluice Valve 100mm diameter

For Scour Valve 80mm diameter

For Air Valve 80mm diameter

Manufacturing, supply and delivery of DI D/F Plunger type(Flow Control valve) with one piece body of ductile cast iron of grade GGG-40, all internal parts of stainless steel. Piston guides of bronze welded overlay & micro-finished and bearing bush of zinc free Bronze. Valve/profile sealing seat shall be in the no-flow zone. Double sealing effect between the body and the plunger shall be by Quadring Seal (twist free operation). The valve shall be designed to operate smoothly throughout the specified flow range without cavitation. Corrosion protected medium free bearing in the body by way of double O-ring seal and encapsulated shaft seal. There shall be no obstacles in the main flow passage except the plunger and the attached control cylinders. Plunger shall be by means of stainless steel crank drive mechanism. Face-to-face dimensions EN558-1 basic series 15 and 1.5X DN from DN500 and flange connections as per EN1092-2/ISO 7005[DIN]. 100mm Diameter

150mm Diameter

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure, manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”. Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished. 80mm diameter

100mm diameter

125mm diameter

150mm Diameter

Orifice Between Pipes plates are one of the most popular devices for the measurement and control of fluid flow. The shape and manufacturing tolerances of plates used in measurement applications are defined in the international standardization publications of ISO, AGA, ASME and others. From the formulas and data within these publications, the relationships and values of flow, differential pressure, and plate bore are determined.In flow control applications, orifice plates are used as restriction devices to regulate fluid flow or reduce the flowing pressure downstream of the orifice plate. The use of a fixed restriction orifice can be beneficial and economic by reducing the demands on other flow system components.Unlike measurement orifices, the sizing and design of restriction orifices are not defined by standardization organizations. Additionally, restriction orifices, abbreviated "RO", are often exposed to severe flow conditions associated with large pressure reductions and the related fluid conditions caused by liquids flashing to a gas, cavitation, and sonic (choked) flow. In torturous applications, mimicking the design of measurement orifices is not sufficient.Orifice Plates are normally mounted between a set of Orifice Flanges and are installed in a straight run of smooth pipe to avoid disturbance of flow patterns from fittings and Valves. 80mm diameter

Labour charges for conveying the pipes and specials within a lead of 200 m and lifting and fixing in position in vertical plane of the following height including scaffolding and jointing with necessary bolts, nuts, steel washers, rubber insertuion sheets, white lead etc. for inlet, outlet, overflow and scour arrangements for OHT including testing of pipes to the required pressure with water conveyed within 1.00 K.M. ( Rate excluding the cost of materials ) 100mm Diameter 22.5 Degree

45 Degree

90 Degree

150mm Diameter 22.5 Degree

45 Degree

90 Degree

200mm Diameter 22.5 Degree

45 Degree

90 Degree

250mm Diameter 22.5 Degree

45 Degree

90 Degree

Supplying and Conveying to site, for 80mm scour valve, (PN 1.0) of following sizes confirming to IS:14846 including CI flanged tail pieces and other specials as required, loading, unloading, transportation charges and stacking, including CI bends and pipe. 80mm diameter

Construction of RCC Chamber for providing Electromagnetic flow meter, Flow Control valve, Pressure sensor and Water quality smart sensors including Earth work excavation, refilling and disposal of excavated earth complete.

Provision for pipe connection arrangements for inlet, outlet scour and overflow etc. including cost of pipes, specials, valve, labour charge for lifting, aligning, cutting, threading, fixing and painting of GI pipes with two coats of approved quality enamel paint etc. complete as detailed below. 65mm dia GI pipes

90mm dia PVC Threaded coupler 63mm dia PVC Threaded coupler 65mm dia GI Tee

65mm dia GI 90o Bend

65mm dia GI Bend 65mm dia GM Gate valve

65mm Ø GI union

90 mm dia. OD PVC pipe rain water harvesting

Cost of pipes - 110mm OD PVC - 4 Ksc

100 mm & 80 mm dia. CI Pipes and Specials: 0 m to 2.00 m - Inlet

2.00 m to 4.00 m - Inlet

4.00 m to 6.00 m - Inlet

6.00 m to 8.00 m - Inlet

8.00 m to 10.00 m - Inlet

10.00 m to 12.00 m - Inlet

12.00 m to 14.00 m - Inlet

14.00 m to 16.00 m - Inlet

16.00 m to 18.00 m - Inlet

18.00 m to 20.00 m - Inlet

Conveying C.I. pipes and specials to the trench within a lead of 200 m lowering into the trench, laying to proper grade and alignment for depth upto 2.00 m. 100 mm CI Pipes and Specials

80 mm CI Pipes and Specials

Supply, delivery of the 100 mm & 150 mm dia. C.I. pipes and specials for OHT connections. C.I.. D/F standard pipes

C.I.. D/F non-standard pipes

C.I.. D/F standard specials

C.I.. D/F non-standard specials

100 mm dia. C.I. D/F sluice valve with cap

80 mm dia. C.I. D/F sluice valve with hand wheel

Surface box

Providing HSC with MDPE pipe ,Compression fittings.