Vacuum Catalogue - Edwards

EV Oil Sealed Single Stage Rotary Vane PumpsHV8000 Industrial, ATEX and Explosion ProofMechanical Booster PumpsOil sealed rotary vane pumps 20 to 630 m 3 h -1 /11 to 360 ft 3 min -1 .Standard features include:• Dual frequency, wide band motor operates in most countriesworldwide• Efficient mist filter for economical operation and environmentalprotection• Integral anti suckback valve protected by fine mesh filter• Gas ballast valve• High pumping speed at low pressure• Ultimate vacuum better than 0.5 mbar• Continuously rated at any pressure from atmosphere to ultimate• Fine mesh inlet filterThe new EV range of vacuum pumps provides an economicalsolution for industrial applications where high ultimate vacuums arenot required.EH Mechanical Booster PumpsPHOTO REQUIREDThe Edwards HV8000 high vacuum mechanical booster has anominal pumping speed of 7200 m 3 h -1 (4241 ft 3 min -1 ), at 50 Hz.• Derived from the successful range of SN pressure blowers, theHV8000 booster is designed for arduous duty cycles and highpower applications.• Ideal for larger scale harsh industrial and chemical applications,HV boosters are available in Industrial, ATEX or Explosion Proofconfigurations.• HV boosters may be ordered as either 'bareshaft' or with motorfitted. Variable frequency drives may be specified for greaterversatility.• HV boosters are available in vertical or horizontal gas flowconfiguration.• For long service life, the external shaft seal is water-cooled.• Five bearing construction and rugged helical gears make for a veryrobust construction.HV Mechanical Booster Pumps8The EH mechanical booster pumps feature the unique hydrokineticdrive, providing an efficient power transmission with benefits ineconomy, performance and compactness. The hydrokinetic driveprovides the following features:• Capacities for 250 to 4200 m 3 h -1• Pump down times cut by 50%, when compared with direct drivepumps• No bypass lines or pressure switches required• Reduced capital and operating costs• Air cooled motors• Quiet, minimum vibrationStokes 6" Series Mechanical Booster PumpsPHOTO REQUIREDStokes 6" series mechanical booster pumps are available in sizes1020-5100 m 3 h -1 / 600-3000 ft 3 min -1 . Features include:• Rugged design for reliable and extended operation• Simple maintenance features incorporated in design• Options of direct drive motors or bare shaft machines• Options of 5 seal process isolation boosters for optimum protectionfrom dust and particulate• Options of by pass technology to reduce pump down time• Dynamically balanced impellersThe HV30000 direct drive mechanical booster has a pumping speedof up to 36000 m 3 h -1 / 21204 ft 3 min -1 at 60 Hz. The speed of thepump motor can be controlled by an inverter.In addition, the pumps offer the following features:• Water cooled shaft seals and after cooler• Fitted with thermal snap-switch, to protect the pump from overtemperature• Nitrogen purge inlet fitted as standard• Vertical flow, direct drive• Control with inverter, or interlock with a pressure switch input.SystemizationEdwards comprehensive range of pumps forms the basis for themanufacture of factory tested combination systems, withdisplacements from 310 m 3 h -1 to 30000 m 3 h -1 / 180 ft 3 min -1 to17700 ft 3 min -1 . With a wide and robust range of accessories tochoose from, the pumping system can be optimised for yourapplication. Edwards systemization service offers fully factory testedcombinations with appropriate accessories.Page277Shop online at www.edwardsvacuum.com