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Mechanical Booster

Mechanical Booster
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With over 100,000 pumps > QMB250 and EH1200 EH SERIES The EH blowers cover the rangefrom 300 to 4,200 Direct drive, high speed blowersfrom I and offera unique and patented design usingthe 1,000 to 30,000 featuring: hydrokinetic drive which hasthe following benefits: Vertical or horizontal flow After coolers as standard Reduced pumpdown timeup to 50% Water cooled bearingsand seals Reduced capital andoperating cost Nitrogen purge Thermal protectiondevice + Simple and economicinstallation: no pressuresensors, by-pass lines orvalves; compact design lnverter drive option Quiet, vibration...

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High pumping efficiency The mechanical booster operates on the Rootsprinciple. It is made of two rotors rotating in oppositedirections in a stator. Due to the lobe shape of therotors and to the synchronisation their rotation througha pair of gears, these rotors remain permanentlytangent to each other and tangent to the mbar where the pumping speed of oilsealed rotary pumps decreases. stator. During the rotation, a volume of gas is trapped betweeneach rotor and the wall of the > stator and transferredwithout internal compression from the inlet side tothe outlet side.The mechanical booster is...

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Chamber Bypass line > PRESSURE RELIEF ANDBYVALVE ARRANGEMENTS > Pumping with backing pump and booster together from atmospheric pressurePumping with backing pumponly, through boosterMechanical booster witched on at 7 mbar 200 300 400 500600 Evacuation Time (s) >

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Hydrokinetic fluid coupling The mechanical booster is in principle an oil-free pump as nolubrication or sealing in the pumping mechanism is required.However, the rotors are supported on bearings and accuratelygeared to each other. These gears and bearings require alubrication system which presents a potential source ofcontamination in a clean system. Additionally the lubricant isat risk when aggressive gases or vapours are being pumped. > Pump Rotor It is essential to prevent oil being transferred from the oilboxes to the pumping chamber and the pumps incorporatean effective seal...

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BOOSTER PUMPCOMBINATIONS ANDVACUUM PUMPINGSYSTEMSEdwards comprehensive range of oilsealed and dry vacuum pumps formsthe basis for the manufacture of standardbooster combinations as well as custombuilt systems, all being fully tested.These are available in displacementsfrom 300 to 30,000 DRYSTAR pumps as wellas our leading range of semiconductordry pumps. > booster & rotary pump combinations and ultimatevacuum down to IO -4 mbar. These systems include EH boosterand oil sealed rotary pumps from theEM range.They can offer displacementsfrom 300 to 4, Edwards - Market leaderin dry pumping I40...

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EH pumps can be fitted as stanrange of 4 chemical dry vacuum p 80,160,250 and 400 m3/h. These combina- tions increases the pumping capacity up to 4,200 with ultimate pressures downto mbar. Standard compact boosterframes with pipe-work are available for each of our EH pumps. All pumps > with EExd flame-proof motors to meet safety regulations. > /I Edwards systemisation service offers fully factory tested custom built pumpcombinations wide rang > optimised for your Edwards experience is broadly > vacuum chemical processing, vacuum metallurgy andmany other >

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Edwards flexible modular approachpermits thoroughly engineered designsolutions and it allows subsequentexpansion or reconfiguration. A widerange of modules and accessories isavailable to cover requirements inmetallurgical, chemical andpharmaceutical processes and manyother branches of industry.Included in the range are customisedframes, indirect cooling, acousticenclosures, air blast coolers, electricalcontrol panels, instrumentation,temperature sensors, isolation andthrottle valves, level switches, silencersand acoustic hoods, inverter drives,dust filtration, condensers, receivers,knockout...

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pressure dry vacuum pump (mbar /Torr) 0,0 > 0,0075 2-stage oil-sealed pump (mbar 0,00 > ______________________________________ _____________________________ Displacement (swept volume) >

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Pumps are shown with Inlet and outlet blankingflanges fitted. Dimensions are to the top surfaceof the pump flange. Dimensions in mm. Ml0 x 15 4 xi: 230 220 1.260 >

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BOC EDWARDS United Kingdom - Headquarters Brazil Manor RoyalCrawleyWest Sussex RH IO 2LW Rua Wrona 222Bairro Do Limao 027 IO Sao Paulo-SP Tel: + 44 (0) I2 93 5288 44 Tel: +(55) I I 85 8037 7 Fax: + 44 (0) I2 93533453 Fax: +(55) I I 26 52 76 6 Belgium > KirchheimTel: + 49 (0) 89 99 I9 I8 0 Fax:+(82) 25618181 Fax:+49(0)89 99 I9 1888 Hong Kong 2605 Shun Tak CentreWest Wing200 Connaught Road CentralHong Kong S.A.R. Italy Via Carpaccio 3520090 Trezzano s/n (Milano)Tel: + 3902484471Fax: + 39024840 I6 38 Tel: + (852) 2 796 91 I I Fax: + (852) 2 796 9095 USA30 Singapore I Ballardvale...

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