Vacuum Catalogue - Edwards

Stokes 622 Series Process Isolation BoostersStokes 6" series process isolation boosters are designed to be used in conjunction withrotary-piston, dry vacuum, rotary vane and liquid ring pumps to increase pumping speed atworking pressures and shorten pump down time significantly. They incorporate fivemechanical seals for optimum protection from dust and particulate contamination and canbe mounted separately or on the inlet of the backing pump to create a compact integratedpackage.Features & BenefitsFeaturing an extra large diameter shaft, the Stokes 6” series has the capability for use withhigher powered motors in addition to ensuring a uniquely rugged and durable mechanicalbooster.Technical Data8Page372●●●●●Mechanical shaft seal – improved life and serviceabilityRingfeder® keyless gear locking system – stronger, faster timingLarge shaft diameters – allowing improved performance at highpressuresBelt drive or direct drive capabilityVertical or horizontal gas flowDisplacementV belt (2750 rpm) 5100m 3 h -1 / 3000ft 3 min -1Direct drive (3000 rpm) 5525m 3 h -1 / 2350ft 3 min -1Direct drive (3600 rpm) 6630m 3 h -1 / 3900ft 3 min -1Inlet/outlet flanges8” ASA/ANSI flangeMotor power EU/Asia18.5kWMotor power US TEFC 25hpCooling water 7.6-11.4 lmin -1 / 2-3 gal min -1Oil capacity (horizontal flow) 1.9 litre / 4.1galOil capacity (vertical flow) 4.1 litre / 8.8galMax pressure differential 333mbar / 250TorrMax temp rise 121°C / 250°FMax discharge temp 177°C / 350°FWeight bare shaft335kg / 740lbsWeight TEFC direct drive 625kg / 1370lbsRecommended OilV- Lube HDimensionsOrdering InformationProduct DescriptionOrder No.622 5HR CE 18.5kW, 230/400V, 3-ph, 50Hz @ 3000rpm 9006225HR601622 5HR CE 18.5kW, 200-220/380V, 3-ph, 50/60Hz @3000/3600rpm9006225HR602622 5H25, 25hp, 230/460V, 3-ph, 60Hz @ 3600rpm 9006225H25622 5HR (Bare shaft) Horizontal flow 9006225HR622 5V25, 25hp, 230/460V, 3-ph, 60Hz @ 3600rpm 9006225V25622 5VR (Bare shaft) Vertical flow 9006225VR622 5VR CE 18.5kW, 230/400V, 3-ph, 50Hz @ 3000rpm 9006225VR601622 5VR CE 18.5kW, 200-220/380V, 3-ph, 50/60Hz @3000/3600rpm9006225VR602Accessories & SparesOrder No.Replacement 6" booster Mseal - seal kit 607552001Replacement 6" booster - maintenance kit 607552002A 8" pipe flange connection 13 1/2" (343 mm) OD x 8” (203 mm) ID 8 x 3/4-10 NC-2B x 11/8" (29 mm) holes straddle both CL both flangesB DIA. Holes1. STD Inlet 2. Optional feetShop online at www.edwardsvacuum.com