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Stokes/Edwards 607 Blower

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Product Description

607 MH05, 5 hp, 230/460V, 3-ph, 60Hz @ 1800rpm

DIFFERENT OPTIONS AND CONFIGURATIONS AVAILABLE INCLUDING: Belt Driven or Direct Drive motor, Horizontal or Vertical Flow. CALL for More Details


Stokes 6" series mechanical boosters are designed to be used in conjunction with rotary-piston, dry vacuum, rotary vane and liquid ring pumps to increase pumping speed at working pressures and shorten pump down time significantly. The Stokes 6" series can be mounted separately or on the inlet of the backing pump to create a compact integrated package. 
Featuring an extra large diameter shaft, the Stokes 6” series has the capability for use with higher powered motors in addition to ensuring a uniquely rugged and durable mechanical booster. This allows the pumps to operate at their full displacement from atmospheric pressure with an appropriately sized backing pump. 
The Stokes 6" series must be backed by a primary vacuum pump designed to discharge to atmospheric pressure. Examples of suitable backing pumps are listed below: 
  • GV Drystar or Chemical Drystar dry pumps
  • Two stage LR series liquid ring pumps
  • RV, EM or EVC oil sealed pumps
  • Microvac series piston pumps


  •  Automotive
  • Chemical processin
  • Heat treatment
  • Leak detection
  • Metallurgy
  • PET processing
  • Pharmaceuticals
  • Thermal processing
  • Transformer drying and cable fluid conditioning
  • Vacuum coating
  • Vacuum melting
  • Many other industrial applications

Features and Benefits

  • Mechanical shaft seal – improved life and serviceability
  • Ringfeder® keyless gear locking system – stronger, faster timing
  • Large shaft diameters – allowing improved performance at high pressures
  • Belt drive or direct drive capability
  • Vertical or horizontal gas flow  
  • Drive end roller bearing – resists belt pull and thermal effects
  • Over-sized anti-friction bearings – increased uptime and longer service intervals
  • Rugged proven design and construction
  • Quiet operation
  • Unique impeller design -Dynamically balanced to minimize vibration
  • High volumetric efficiency
  • High differential pressure – operation capability
  • Available by-pass option for improved pumpdown
  • Available process isolation seal option – optimum protection from dust and particulate contamination

Technical Data

  V belt (2750 rpm) 1589m3h-1 / 935ft3min-1
  Direct drive (1800 rpm) 1040m3h-1 / 612ft3min-1
  Direct drive (3000 rpm) 1733m3h-1 / 1020ft3min-1
  Direct drive (3600 rpm) 2080m3h-1 / 1224ft3min-1
Inlet/outlet flanges 6” ASA/ANSI
Motor power US TEFC 5 / 20hp
Motor power EU/Asia 7.5kW
Cooling method Air Cooled
Oil capacity (horizontal flow) 1.9liter / 0.51gal
Oil capacity (vertical flow) 4.1liter / 1.1gal
Max pressure differential 506mbar / 380Torr
Max temp rise 135°C / 275°F
Max discharge temp 191°C / 375°F
Weight bare shaft 215kg / 475lbs
Weight TEFC direct drive 408kg / 900lbs

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