REPAIR AND MAINTENANCE OF FILTER MEDIA AT FILTRATION PLANT NO 1,2,3 AND SWIMMING POOL AND OTHER ALLIED WORKS IN THE AREA OF AGE E/M (ARMY) JAMNAGAR UNDER GARRISON ENGINEER (ARMY) JAMNAGAR

Amount

Taking out and removing existing sand ,accumulated mud etc (filter media) from the Rapid Gravity feed type Filter Bed for water treatment Plant No 1,2,3 & Swimming pool and removing / disposal of spoil to a distance not exceeding 50 mtr complete all as specified and as directed.

Taking out and removing out existing of Gravels of any size(filter media) from the Rapid Gravity type Filter Bed for water treatment Plant No 1,2,3 & Swimming pool and removing /disposal of unserviceable Gravels from site complete all as specified and as directed.

M&L Fresh Gravel of size 40 mm size suitable for drinking purpose, as approved, filling in the Filter Bed of rapid gravity filter for water treatment Plant No 1,2,3 & Swimming pool complete all as specified and as directed.

M&L Fresh Gravel of size 20 mm size suitable for drinking purpose, as approved, filling in the Filter Bed of rapid gravity filter for water treatment Plant No 1,2,3 & Swimming pool complete all as specified and as directed.

M&L Fresh Gravel of size 10 to 12 mm size suitable for drinking purpose, as approved, filling in the Filter Bed of rapid gravity filter for water treatment Plant No 1,2,3 & Swimming pool complete all as specified and as directed.

M&L Fresh Gravel of size 2 to 6 mm size suitable for drinking purpose, as approved, filling in the Filter Bed of rapid gravity filter for water treatment Plant No 1,2,3 & Swimming pool complete all as specified and as directed.

M&L Fresh Sand of size 0.6 mm to 0.80 mm and coefficient of uniformity and silica content should be not less than 90%, filling in layers in the Filter Beds for water treatment Plant No 1,2,3 & Swimming pool complete all as specified and as directed.

M&L Fresh Sand of size 1.0 mm to 1.20 mm and coefficient of uniformity and silica content should be not less than 90%, filling in layers in the Filter Beds for water treatment Plant No 1,2,3 & Swimming pool complete all as specified and as directed.

Taking out old unserviceable/rusted GI perforated pipe of following sizes from existing filter bed back wash with replacement of new perforated pipe of same dia heavy grade including cutting, welding of GI Flange and making required holes as per existing design/ specified and painted with two coats of lead free synthetic enamel paint complete all as specified and as directed.

(a) 80 mm dia

(b) 25 mm dia

M & L for preparation of old painted iron surfaces of any description not exc 10 cm in width or grith and applying two coat of synthetic enamel paint of approved colour on iron surfaces (pipes etc) all as specified and directed .

Demolition of brick work or stone/boulder masonry, built in cement mortar including all quoins, pillars etc all as specified and directed by Engr-In-charge.

M & L for brick work with sub class `B` bricks using old size bricks straight on plan built in cement mortar 1:6, 23 mm thick for construction of valve chamber and other misc work all as specified and directed by Engr-In-charge.

M & L for 15 mm thick rendering in CM 1:4 on fair faces of brick work / concrete work and finished even& smooth without using extra cement all as specified and directed by Engr-In-charge.

M & L for PCC 1:2:4 type B1 in coping using 20 mm graded stone aggregate even thick finished even and smooth all as specified and directed by Engr-in-charge.

S&F for Reciprocating Rotary type Air blower 3AT-100, capacity 600 cubic meter per hour with discharge pressure 0.50 kg/sq cm blower speed 1600 RPM with 12" dia air fliter for air sourcing arrangement tank to tank wash filter beds driven by electrical motor 3 phase, 440 Volts, 50 Hz, of capacity 20 HP, 1450 RPM, MS fabricated base frame for blower & Motor with 'V' pilley foe blower & Motor with 'V' belts, belt guard, safety valve including removal of old unsv BER compressor from PCC base and handover to store yard of AGE E/M complete all as specified

Labour only for cleaning of chowked, and removing accumulated mud from back wash pipeline by using compressed air with water of from Backwash well to Army Filter Plant No 1, to Airforce Filtration Plant No 2 & to Navy Fitration Palnt No 3 complete all as specified and directed.

M & L for servicing the HOT crane installed in Main Pump House with necessary gease to all moving parts and gear system etc including repalcement of grease nipples, allignment of rolling system etc and painting entaire HOT crane with two coats of approved synthatic enamel paint over a coat of red oxide primer with surface preapratation complete all as specified and as directed.

M & L for servicing the EOT crane installed in Navy Pump House with necessary gease to all moving parts and gear system etc including repalcement of grease nipples etc replacement of unsv following parts for running smooth function and painting entaire HOT crane with two coats of approved synthatic enamel paint over a coat of red oxide primer with surface preapratation complete all as specified and as directed. (i) Electrical copper control cables of required size and runs (ii) Electrical pedent control switch & panel (iii) Checking of Mechanical system for lowering & up (iv) Rewinding of Electrical Motor of capcity 0.50 HP and refixing its in original position (v) Allignment of rolling system etc

M & L for repair and serving to Double reduction gear coupled with motor mounted on common base plate frame with gear box system for Clari-focculator system assembly including functional of paddle and scapper assembly systen and making its functional including replacement, refilling of gear oil and any other warn out patrs as per requirement fitted at Army Water trearment Plant No 1complete as specified and directed by Engr- in- charge

Taking down exising cast iron Back wash water pipe of size 150 mm dia with flanged ends fitted in filter bed lower portion including disconnecting all connected pipes and fittings and cleaning all deposited material and refixing back with including replacement of uvsv rusted bolts, nuts and wases with rubber joints to flaned joints etc including two coats of food grade paint over a coat of primer to pipe complete as specified and directed by Engr- in- charge

Supply, install and testing for maintenance free chemical earthing of dual pipe technology of 3 mtr long with outer pipe dia 88 mm and inner pipe dia 48 mm, the pipes are properly galvanised for 80-120 micron and wall thickness of inner pipe 3 mm and 2 mm of outer pipe. There is additional copper coating on outer surface. There should be terminal for connection of 75 x 6 mm with 2 holes of 14 mm dia. Fast Electrode is duly filled with highly conductive material with sealing at boath ends with lead terminal of 75 x 6 mm at top along with 2 bags of 25 Kgs each of earth enhancing compound. The chemical compound should be tested and certified by any international accredited and BIS accredited laborartory. The testing laboratory should be an ISO 9001 and 14001 certified. The earth enhancing compound should be tested reffering to protocol IS 1350 and IEC 62321/111/54/CDV. The ph value of compound should be 7-8. The content of mercury and hexa chromium should be below detection level. The electrode should be tested for salt spray test as per BIS 117-09 for corrosion for minimum 500 Hrs. The electrode should be duly tested and certified by CPRI Govt of India for a min short circuit current of 42 k amps for 1 Sec with initial pick of 8.2 K amp connected to copper strip 20 x 3 mm thick earth strip by means of bolts, nuts, check nuts and washers of copper with 40 mm dia medium grade GI pipe as a protection up to 7.5 mtr long and RCC pit with cover complete and connected to earthing test point all as specified or indicated including testing on completion, complete all as specified and as directed. Model FE 88, 3 Mtr (copper) of Make Fast Electrode or its equivalant specifications appoved make by Garrison Engineer.

Supply and fix Single pointed air termination aluminium rod , 12 mm dia, 300mm long with necessary fixing arrangements as per site requirements including removal old unsv one complete all as specified and directed.

Fixing propely of hanging existing aluminium strip 25 mm x 3.15 mm complete with provn of new saddles and fixing screws from ground level to top doom along with column of OTH air terimination rod complete all as specified and directed.

M & L for Test point terminal block made of gun or phosphorus bronze size 75 x 75 x 25 mm, drilled and secrewed including 3 nos 8 mm dia 25 mm long hex. Head screw including removal old extg unsv one complete all as directed complete.

Cutting unaxious green growth and grass by manual labour or by machine at all E/M water supply installation premisses and along the boundary fencing and removing rubbish from the site of work where didected not exceeding 100 mtr from the starting point. (The green growth shall be cleaned once in every three month and the measuremet shall be taken every time indipendently for executed quantity each time.

M & L for painting after preparing surfaces of filter bed by scrapping with Wire Brush and applying one coat of epoxy resign pigmented paint with mixing Ratio 4:1 (i.e Base paint & catalyst hardner) of make- Berger Epilux 78 High build or any other make duly certified by CFTRI, Mysore suitable for portable drinking Water to existing surfaces complete all as specified and directed by by Engineer-in-Charge.

RACON CONSTRUCTION

sanu enterprise

M/s Punnsons India

SURAJ ENTERPRISE