Looking for

RFQ Description

Dear Sirs, My name is Maria Makarova and I represent Estonian metal-working company. Our workshop is situated in Narva. For our new project we need a main fan unit. Please find below technical information of the required fan.This inquiry is urgent so I kindly ask to submit the quotation by Tuesday 31/07. - Best regards,Maria MakarovaInternational Sales SpecialistWell Technology OUTel: +372 55 529 492e-mail: *@********************hnical dates for main fan unitAmbient air temperature for the coldest five-day period - 37 CTemperature for the warmest five-day period37Absolute minimum - 53 CAbsolute maximum40Humidity of transported air20-100%Equipment service life41 yearWarranty period of storage60 monthsDesign service life before general maintenance100 000 hoursSpare parts for maintenance of MFU and emergency repair60 monthsReverse60 % from direct supplyReverse time10 minTemperature in fan-house5Climatic execution according GOST 15150-69???3Dustiness of transported air0,2 mg/g³The overall size of each fan, taking into account the diffuser (without inlet box) (L?W?H)10,8 x 4 x 3mLower limit of temperature of transported air2Upper limit of temperature of transported air37Lower limit temperature of transported air in reverse mode-37,2Upper limit of temperature of transported air in reverse mode36,7Nominal efficiency (at nominal rpm)85%Noise level80 dBElectric motor1700 kW /1000 rpmElectric motorIP54Unit typeaxialEx requirementsmine normalTotal quantity of units1 setFan quantity in the unit2 pcsMin capacity68 m3/sMax capacity298 m3/sFull fan pressure within400÷4343 PaNumber of fan stagesone-stageUnit positionhorizontalUnit locationat grassOperating modecontinuous (alternating monthly with standby)Fans simultaneously in operation1 pcsFans simultaneously in reserve1 pcsReverse mode - changing the position of the impeller blades (hydraulic mechanism)Reverse mode - changing the direction of rotation of the impellerRegulating mode of MFU (changing the angle of the impeller blades)hydraulic mechanism (on the go, without stopping the fan)Regulating mode of MFU (changing in rotational speed of the rotor)frequency converterImpeller diameter2800 mmAdjusting of the impeller bladeshydraulic mechanism (on the go, without stopping the fan)Material of impeller bladesat the suggestion of the lead contractorSupply voltage6000 VIsolation classFStructural designIM B2Built-in condensate protectionavailabilityThe brake mechanism is on, normally closedavailabilityThe lubrication system of the bearing units of the fanavailabilityHorizontal diffuser2 setsFolding door horizontal1 setCounter clampings2 setsLouvered damper (high pressure damper)2 setsCounter clampings2 sets