- PN 900212014 / 900-212-014
- 230/460V 3Ph
- Pumping Speed: 138 CFM
- 7.5 HP
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 212 J piston pumps has set the new standardsfor providing extreme durability and pumping performance.
The Stokes 212J Series operates on rotational speed which enables longest pump life cycle.

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| Displacement (swept volume) | 255 m3h-1 / 150 ft3min-1 |
| Pumping Speed | 234 m3h-1 / 138 ft3min-1 |
| Ultimate vacuum (total pressure) | |
| without gas ballast | <3.3x10-2 mbar / <2.5x10-2 Torr |
| with gas ballast | <2.6x10-2 mbar / <2x10-2 Torr |
| 50Hz Motor size (TEFC) | 5.5 kW IEC (CE variant) |
| 60Hz Motor size (TEFC) | 7.5 hp TEFC |
| Motor speed | 1800 rpm |
| Inlet connection | 3 inch ASA/ANSI flange |
| Exhaust connection | 2 inch ASA/ANSI flange or 2 inch NPT |
| Water inlet/outlet connection | ½ inch NPT |
| Recommended cooling flow @ 85°C / 30°F | 5.7 lmin-1 / 1.5 galmin-1 |
| Water vapour pumping rate | 5 kg h-1 / 11 lb h-1 |
| Oil capacity | 15 litre / 4 gal |
| Recommended oil | V lube F |
| Noise | <77 dB(A) |
| Weight | 431 kg / 950 lbs |
Click Here for Edwards Stokes Pump Manual
We can have a repair estimate ready for your equipment within the hour of submission.
Start your equipment repair process by creating a Service RMA.
A&J Vacuum Services provides repairs on all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair and Mass Spectrometer repair. Our highly trained technicians will deliver the highest quality service and satisfaction.
We operate at our own full service repair facility which allows us to quickly and economically perform all repairs in a timely manner. Our advandced machinery enables us to handle all facets of the service and repair process. AJVS utilizes industry standard vibration analysis equipment and advanced testing equipment to troubleshoot and minimize all equipment failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.