The Stokes Vacuum Microvac J Series Rotary Piston Pumps have over 80 years of industrial use. The Stokes J Series Pumps are piston oil design suitable for small floor space.
The Stokes 612 J piston pumps has set the new standardsfor providing extreme durability and pumping performance.
The Stokes 612J Series operates on rotational speed which enables longest pump life cycle.
Click Here for Edwards Stokes Pump Manual
Displacement (swept volume) | 1020 m3h-1 / 600 ft3min-1 |
Pumping speed | 884 m3h-1 / 520 ft3min-1 |
Ultimate vacuum (total pressure) | |
without gas ballast | <3.3 x 10-2 mbar / <2.5 x 10-2 Torr |
with gas ballast | <2.6 x 10-1 mbar / <2 x 10-1 Torr |
50Hz Motor size | 11 kW IEC (CE variant) (x2) |
60Hz Motor size | 10 hp TEFC (x2) |
Motor speed | 1800 rpm |
Inlet connection | 6 inch ASA/ANSI flange |
Exhaust connection | 2 x 3 inch ASA/ANSI flange or 3 inch NPT |
Cooling medium | Water |
Water inlet/outlet connection | 2 x ½ inch NPT |
Recommended cooling flow @ 85°F / 30°C | 7.6 lmin-1 / 1.5 galmin-1 (x2) |
Water vapour pumping rate | 20.9 kg h-1 / 46 lb h-1 |
Oil capacity | 92 litre / 24 gal |
Recommended oil | V lube F |
Noise level | <85 dB(A) |
Weight | 1724 kg / 3800 lbs |
Click Here for Edwards Stokes Pump Manual
A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service.
We operate at our own full service repair facility in Clifton, NJ. We have invested in state-of-the-art equipment including; complete line of decontamination, cleaning, drying, balancing, vibration analysis and software to minimize failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.
We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies.
Repair Steps
Every pump and instrument is extensively tested for 48 hours. During our final tests, we monitor total pressure, temperature, vibration and noise level utilizing newest testing technologies and techniques specified by OEM. Upon request, we can provide our customers with a pump down graph. Call us for your free repair estimate at 1-973-249-0854.
The Stokes Vacuum Microvac J Series Rotary Piston Pumps have over 80 years of industrial use. The Stokes J Series Pumps are piston oil design suitable for small floor space.
The Stokes 612 J piston pumps has set the new standardsfor providing extreme durability and pumping performance.
The Stokes 612J Series operates on rotational speed which enables longest pump life cycle.
Click Here for Edwards Stokes Pump Manual
Displacement (swept volume) | 1020 m3h-1 / 600 ft3min-1 |
Pumping speed | 884 m3h-1 / 520 ft3min-1 |
Ultimate vacuum (total pressure) | |
without gas ballast | <3.3 x 10-2 mbar / <2.5 x 10-2 Torr |
with gas ballast | <2.6 x 10-1 mbar / <2 x 10-1 Torr |
50Hz Motor size | 11 kW IEC (CE variant) (x2) |
60Hz Motor size | 10 hp TEFC (x2) |
Motor speed | 1800 rpm |
Inlet connection | 6 inch ASA/ANSI flange |
Exhaust connection | 2 x 3 inch ASA/ANSI flange or 3 inch NPT |
Cooling medium | Water |
Water inlet/outlet connection | 2 x ½ inch NPT |
Recommended cooling flow @ 85°F / 30°C | 7.6 lmin-1 / 1.5 galmin-1 (x2) |
Water vapour pumping rate | 20.9 kg h-1 / 46 lb h-1 |
Oil capacity | 92 litre / 24 gal |
Recommended oil | V lube F |
Noise level | <85 dB(A) |
Weight | 1724 kg / 3800 lbs |
Click Here for Edwards Stokes Pump Manual
A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service.
We operate at our own full service repair facility in Clifton, NJ. We have invested in state-of-the-art equipment including; complete line of decontamination, cleaning, drying, balancing, vibration analysis and software to minimize failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.
We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies.
Repair Steps
Every pump and instrument is extensively tested for 48 hours. During our final tests, we monitor total pressure, temperature, vibration and noise level utilizing newest testing technologies and techniques specified by OEM. Upon request, we can provide our customers with a pump down graph. Call us for your free repair estimate at 1-973-249-0854.