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    Druschke GmbH Vakuumservice
    • Products
      • Oil-Sealed Vacuum Pumps
      • Small Dry Compression Vacuum Pumps
      • Large Dry Compression Vacuum Pumps
      • Roots Vacuum Pumps
      • Turbo Molecular Vacuum Pumps
      • Vacuum Pump System
      • Leak Detection Devices
      • Measuring Devices / Display Devices
    • Renew Geräte
      • Ölgedichtete Vakuumpumpen
      • Große trockenlaufende Vakuumpumpen
      • Wälzkolbenpumpen
      • Turbomolekularvakuumpumpen
      • Öldiffusionsvakuumpumpen
    • Spare Parts
      • Leybold
      • Edwards
      • Busch
    • Service
      • Leybold
      • Edwards
      • Anest Iwata
      • Pfeiffer
      • Leak Detectors
    • Lubricants
      • Druschke
      • Leybold
      • Edwards
      • Pfeiffer
    • Cryochiller
    • Calibration
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    Edwards

    Edwards Stokes 622

    Edwards Stokes 622

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    Edwards Stokes 622
    • Description
    • Documents
    • Necessary accessories
    • Optional accessories
    • Oils / Operating materials
    • Spare Parts
    • Service

    Stokes 6" Roots Pumps – High Capacity and Quick Pump Down

    Stokes 6" Roots Pumps offer high pumping speeds and efficient pump-down times for various industrial processes. Configurable options include models with or without motors and direct-drive speeds ranging from 1,800 to 3,600 RPM. You can choose between vertical and horizontal gas flow, while versions with bypass functionality eliminate the need for pressure switches, enhancing flexibility.

    Optimized Design for Longevity
    Built for durability, these pumps feature ring spring locking elements that ensure consistent operation and extended lifespan. The process-isolated model includes five mechanical seals for protecting processes from dust and contaminants.

    Ease of Maintenance
    A mechanical shaft seal and a large oil sight glass simplify oil monitoring and extend service intervals. Magnetic drain plugs further enhance reliability and ease of maintenance.

    Compatible Backing Pumps
    Supports include Microvac piston pumps, GV Drystar or Chemical Drystar dry pumps, EM and ES oil-sealed pumps, and LR two-stage liquid ring pumps.

    Applications
    Suitable for automotive, chemical processing, heat treatment, leak detection, metallurgy, pharmaceutical, PET processing, transformer drying, cable fluid processing, vacuum coating, vacuum melting, and more.

    • Edwards Stokes 6” Mechanical Booster Datasheet - EN
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    Variant:
    Article number
    900-622-5HR
    900-622-5VR
    900-622-MHR
    900-622-MVR
    9006225H25EE
    900622MH25EE
    900622MHR940
    900622MV25EE
    Product
    Stokes 622 - HGFStokes 622 - VGFStokes 622 - HGFStokes 622 - VGFStokes 622 - HGF Bypass PIBStokes 622 - HGFStokes 622 - MHRStokes 622 - VGF
    End pressure
    333.00 mbar333.00 mbar333.00 mbar333.00 mbar333.00 mbar333.00 mbar333.00 mbar333.00 mbar
    End pressure
    Pumping speed
    5440.00 m³/h5440.00 m³/h5440.00 m³/h5440.00 m³/h5440.00 m³/h5440.00 m³/h5440.00 m³/h5440.00 m³/h
    Pumping speed
    Connection flange
    Power supply
    Free shaft without motorFree shaft without motorFree shaft without motorFree shaft without motor25PS, 460V, energy efficient25PS, 460V, energy efficientIE3, EU/US/CN, 50/60HZ, CE25PS, 460V, energy efficient
    Feature variant
    Horizontal flow (HF), process isolationVertical flow (VF), process isolationHorizontal flow (HF), mechanical sealVertical flow (VF), mechanical sealHorizontal flow (HF), process isolationHorizontal flow (HF), mechanical sealHorizontal flow (HF), mechanical sealVertical flow (VF), mechanical seal
    Connection flange (pressure side)
    Connection flange (suction side)
    Inlet flange
    ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"
    Outlet flange
    ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"ASA/ANSI 8"
    Lubricants
    Valves
    Product details
    Cooling Method