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internal & external coating of the booster pump of emirates road pumping station. pump details: mfr: clyde weir pump, flow rate: 526 l/sec; haed: 66 m; type: sdk 400/600; rev/min: 980 rpm. please contact mr. noor 04-3229439 for further clarifications. scope of works: specification for internal coating of pumps/ valves general these pumps & valves are used in water booster pumping stations. the fluid handled by these pumps is potable water of maximum temperature up to 50 0c. normally the water is clean but some time it is noticed to have sand and solids in stream from pipeline. these pumps are in operation since commissioning of the station . scope of work collection & transportation the contractor shall collect the pump casing through suitable pickup/crane mounted tsuitable composite materials up to original level before applying any coating. the composite material shall have the following properties: #the curried composite must be suitable for continuous immersion in the following chemicals at 21 0c 70 0f: ferric chloride, 10% hydrochloric acid, 10% sulfuric acid, 5% nitric acid, 50% sodium hydroxide and 28% ammonium hydroxide. ·#the composite shall show no blisters when exposed to de-mineralized water in an astm c 868 corrosion test at 43 0c 110 0 f for a minimum period of 6 months. #adhesion of the composite per astm d1002 shall be greater than 183 kg/cm2 2, 600 psi #the curved composite must meet or exceed t he following physical requirements: compressive strength astm d 695 914 kg/cm2 13, 000 psi. tensile strength astm d638 431 kg/ cm2 6, 136 psi flexural strength astm d 790 620 kg/cm2 8, 800 psi flexural modulus astm d 790 6.9 x 104 kg/cm2 9.87 x 105 psi. during the phases of surface preparation, application, and curing, environmental conditions will require careful monitoring a nd may require supplemental controls. critical areas of concern are relative humidity, dew point, surface temperature of the substra te, and air purity. contractor shall carryout all the procedures in a controlled environment in accordance with the latest standards and procedures. final internal coating after surface preparation and filling up the eroded surface it is required to a pply the ceramic reinforced composite materials for final coating. the composite coating materials shall have following
complete overhauling of the booster pump of emirates road pumping station. pump details: mfr: clyde weir pump, flow rate: 526 l/sec; haed: 66 m; type: sdk 400/600; rev/min: 980 rpm. please contact mr. noor uddin 052-9172523for further clarifications. technical specifications 1.0#introduction dubai electricity & water authority dewa owns and operates potable water booster pumping stations at various locations of dubai. these booster pumping stations along with their accessories are maintained regularly and taken out o f service in a planned sequence mostly in winter to carry out the preventive maintenance, inspections & overhauling etc. 2.0#scope o f work the scope of work mandatory & optional for the overhaul of booster pumps and their accessories of booster pumping station. a#the contractor has to take the pump assembly from dewa site to their workshop & vice versa. dewa shall not provide any transport to shift the same. for loading & unloading contractor can use dewa overhead crane available at pumping stations in coordination wit h the dewa representatives. b#mechanical seal replacement, coupling bush renewal gland packing renewal, bearing replacement as re quired. c#overhauling of pump see annexure i-mandatory & ii-optional d#painting of pump externally e#rectification of the pump for any complaint rose after installation. f#if any part is found defective, the contractor has to repair/replace the same. availab le spare shall be supplied by dewa. if any spare is not available with dewa the
complete overhauling of booster pump of mushrif pumping station. pump details: make-aversa, model-nds 500-450-700. please contact mr noor uddin 052-9172523 for further clarification. 1.0#introduction dubai electricity & water authority dewa owns and operates potable water booster pumping stations at various locations of dubai. these booster pumping stations along with their accessories ar maintained regularly and taken out of service in a planned sequence mostly in winter to carry out the preventive maintenance, insp ections etc. 2.0#scope of work the scope of work mandatory & optional for the overhaul of booster pumps and their accessories o booster pumping station. # a#the contractor has to take the pump assembly from dewa site to their workshop
supply of internal & external coating of of booster pump of mushrif pumping station. pump details: make-aversa, model-nds 500-450-700. please contact mr. noor 04-3229439 for further clarifications. scope of works: specification for internal coating of pumps/ valves g eneral these pumps & valves are used in water booster pumping stations. the fluid handled by these pumps is potable water of maximum temperature up to 50 0c. normally the water is clean but some time it is noticed to have sand and solids in stream from pipe line. these pumps are in operation since commissioning of the station. scope of work collection & transportation the contractor shall collect the pump casing through suitable pickup/crane mounted truck from ems workshop at aweer. the contractor
additional repairing works on the pump sent for complete overhauling nad al sheba an-40016-17 clyde union booster pump please send this enquiry to m/s hitek as the overhauling po-3052001268 was rewarded to them please contact mr. noor 04-3229439 for further cl arifications. scope of works: 1. machining on the both impeller wearing rings 2. assembly of both wear rings to the rotor assembly 3. 1 year warranty on the workmanship additional repairing works on the pump sent for complete overhauling nad al sheba an-40016-17 clyde union booster pump please send this enquiry to m/s hitek as the overhauling po-3052001268 was rewarded to them please contact mr. noor 04-3229439 for further cl arifications. scope of works: 1. machining on the pump impeller 2. assembly of the
testing and calibration of sweep frequancy response analyzer, make: doble, model: m5300, serial no: 11000205. calibration and certif ication should be traceable and accredited as per iso/iec 17025 specification. calibration certificate to be valid for two year. testing and calibration of karl fischer titration instrument; make: megger, model: kf lab mkii, serial no.: 1237. calibration and ce rtification should be traceable and accredited as per iso/iec 17025 specification. calibration certificate to be valid for two year.
the scope of work will be as following: carrying out inspection of the portable air compressor & calibration of air pressure switche s as per the prevailing guidelines of dubai municipality. details of the portable air compressor: make: abac air compressor model: b 4900/270 ct4 ce abac air receiver tank capacity: 270 l ps: 11 bar no. of safety valve: one year of manufacturing: 2010 motor rating : 4 kw, 3 phase 400v, 50 hz, 2930 rpm. the job shall be carried out as per the dubai municipality guidelines by a competent & approv ed agency. necessary tools/instruments required to carry out the inspection shall be arranged by the agency. specific requirement, i f any shall be mentioned in the quotation. report/test certificate shall be submitted after completion of the job.
complete overhauling of booster pump for hatta city new ps ro fees pump. pump details: make-goulds, model-3410, size: 2x3-11, impell er dia 9.12, rpm-2945, capacity-75cm/h please contact mr. noor 04-3229439 for further clarifications 1.0#introduction dubai el ectricity & water authority dewa owns and operates potable water booster pumping stations at various locations of dubai. these boo ster pumping stations along with their accessories are maintained regularly and taken out of service in a planned sequence mostly in winter to carry out the preventive maintenance, inspections & overhauling etc. 2.0#scope of work the scope of work mandatory & optional for the overhaul of booster pumps and their accessories of booster pumping station. # a#the contractor has
internal & external coating of pump casing of hatta city ro feed pump pump details: make-goulds, model-3410, size: 2x3-11, impeller dia 9.12, rpm-2945, capacity-75cm/h please contact mr. noor 04-3229439 for further clarifications. scope of works: specificati on for internal coating of pumps/ valves general these pumps & valves are used in water booster pumping stations. the fluid handled by these pumps is potable water of maximum temperature up to 50 0c. normally the water is clean but some time it is noticed to have sand and solids in stream from pipeline. these pumps are in operation since commissioning of the station. scope of work collection & transportation the contractor shall collect the pump casing through suitable pickup/crane mounted truck from ems works hop at aweer. the contractor pickup shall have suitable and safe lifting sling/belt of sufficient load capacity. loading and unloadi ng of pump casing to be carried out by contractor. surface preparation before applying any coating, the contractor has to do nece ssary surface preparation by sand or grit blasting or any other suitable mechanical system to remove all rust & loose materials. aft er sand blasting the contractor has to intimate dewa engineer for inspection of the surface before applying any coating. during sand blasting it is required to protect all machined surface, seat area and all other critical areas and parts from damage by suitable me thod. buildup/ filling of erroded/pitted surface the supplier has to buildup eroded surface by suitable composite
the scope of work will be: 1this job includes the fabrication of wooden blocks/sleepers using tali wood material as per the differe nt dimensions mentioned below. 2fabricate with fine finishing of hard wooden blocks for generator & mv motors overhauling work. har d wooden tali wood blocks to be capable of withstand minimum 10 ton capacity weight. 3dimensions in meters & quantities are as mentioned below: al 2.2m; w 0.5m; h 0.2m, quantity 14nos. bl 1m; w 0.3m; h 0.1m, quantity 10nos. cl 1m; w 0.3m; h 0.05m, quantity 6nos. 4contractor should visit the site to identify actual requirements before submitting the quote. 5party should submit their q uote in aed. 6contractor has to submit detailed split up for their quote against the entire scope of work along with cost