607 MH05

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.

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


  • 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
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