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Construction of Water Main From Al Ain To Al Wagan Contract No. N-00-0023
A major project to supply water to the farms and communities west of Al Ain.

Al Nasr Irrigation & Contracting Co. was awarded this project for the Engineering, procurement, construction and commissioning of the pipeline, two pumping stations and their chlorination systems.
The project details are:
Client: Abu Dhabi Water & Electricity Authority
Contract Period: Two years, completed in 2003
Scope of works:
Detailed Engineering. Investigate, find & implement, procure, install, test & commission a fully acceptable operational system that meets the specific guaranteed values as set out in the specifications for:
a)80 KM of 600 mm dia. D.I. pumping main pipeline from connection at Zakher 800 mm dia. D.I. to Al Wagan ADWEA compound including all valve chambers.
b)2 No.s 2 MG Reinforced Concrete water reservoirs each at Al Wagan and at Seih Al Raheil ADWEA compounds.
c)2 No.s Pumping Stations and bulk fuel tank each at Al Wagan and at Seih Al Raheil ADWEA compounds.
d)2 No.s Chlorination Buildings each at Al Wagan and at Seih Al Raheil ADWEA compounds.
e)2 No.s Generator Buildings each at Al Wagan and at Seih Al Raheil ADWEA compounds.
f)2 No.s Office Control Buildings each at Al Wagan and at Al Quoa ADWEA compounds.
g)2 No.s Gatehouse Buildings each at al Wagan and at Al Quoa ADWEA compounds.
h)1 No. General Stores at ADWEA Al Ain.
i)Refurbishment works to existing Desalination Buildings at Al Wagan and at Al Quoa ADWEA compounds.
j)Refurbishment works to existing overflow structures in Al Wagan ADWEA compound.
k)Internal & External boundary walls and other associated appurtenant works.
Mechanical & Electrical Works
a)A complete hydraulic calculations and analysis for the complete pumping/pipeline system including surge analysis.
b)Supply & Install pumps/motors
c)Supply & Install welded steel anti-surge vessels with respective air supply system, DI piping, valves, bellows, etc.
d)Supply & Install small capacity drainage pump/motor with associated piping, electrical instrumentation & control system.
e)Supply, Install, Connect, Test & Commission 11 Kv, 6.6 Kv and 415V swichboard/MCC.
f)24V DC & 110V DC supply system.
g)240 V AC Uninterruptible Power Supply (UPS) system.
h)Sub distribution boards for feeding all new loads.
i)11 kV cables from the 11 kV switchboards to the new transformers.
j)6.6 kV cables for the new 6.6 kV switchboards.
k)LV power cables.
l)Control cables between frequency converters & LV switchboards, control panels, motor operated valves etc
m)Lighting & small power.
n)Earthing system.
n)Fire detection & alarm system and integrating with main fire alarm panel.
Instrumentation & Control Works
a)PLC based central control system.
b)Field installed panels for field monitoring & operations.
c)All field mounted instruments.
d)Instrumentation & control cabling.
Chlorination System Work
a)Design, Supply, Install, Connect, Test & Commission Chlorine gas manifold, change over piping, evaporators, filters with liquid chlorine traps, chlorinators, booster pumps, ejectors, chlorine solution
b)Diffuser, exhaust fans, booster pumps, residual chlorine analyser, pH analyser, conductivity analyser, chlorine gas detector and all associated electrical, piping, instrumentation & control works.
Air Conditioning & Ventilation Work
a)Design, Supply, Install, Connect, Test & Commission Air Conditioning & ventilation system.
Fire Protection System Work
Design, Supply, Install, Connect, Test & Commission Fire Protection system that includes:
a)CO2 system for 11 kV switchgear & frequency converters & Building.
b)Portable CO2 fire extinguishers.
c)Fire Detection and alarm system with associated piping & cabling.
Testing & Commissioning
a)Hydrostatic testing of all pump station piping system.
b)Testing of pumps, pump controls & crane railing.
c)Testing of all electrical, instrumentation/control air conditioning and ventilation systems.
d)Testing chlorination system.
e)Testing of fire protection system.
f)Testing of all pipelines and channel crossing pipes.
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