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622 MH25
Activair.cz > Products > Vacuum pumps and vacuum stations > Mechanical Boosters > Stokes 6" > 622 MH25
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.
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
Applications
- Automotive
- Chemical processing
- 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 | |
| Displacement | |
| V belt (2750 rpm) | 5100m3h-1 / 3000ft3min-1 |
| Direct drive (3000 rpm) | 5525m3h-1 / 2350ft3min-1 |
| Direct drive (3600 rpm) | 6630m3h-1 / 3900ft3min-1 |
| Inlet/outlet flanges | 8” ASA/ANSI flange |
| Motor power EU/Asia | 18.5kW |
| Motor power US TEFC | 25hp |
| Cooling method | Air cooled |
| Oil capacity (horizontal flow) | 1.9 litre / 0.51gal |
| Oil capacity (vertical flow) | 4.1 litre / 1.1gal |
| Max pressure differential | 333mbar / 250Torr |
| Max temp rise | 151°C / 275°F |
| Max discharge temp | 177°C / 350°F |
| Weight bare shaft | 335kg / 740lbs |
| Weight TEFC direct drive | 617kg / 1360lbs |
| Recommended Oil | V- Lube H |