The Stokes 412J vacuum pump is an oil-sealed rotary piston pump used for industrial roughing vacuum applications. A reliable and efficient single stage vacuum pump, the Stokes Microvac 412J has a nominal displacement of 300 cfm, a pump speed of 490 RPM and an ultimate pressure of 2.5 x 10 -2 Torr.
The 412J Stokes Microvac vacuum pump is a rotary piston pump with a 3 phase 10 hp motor. It operates at a 83 dB(A) noise level. Adjustable gas ballast valves are standard equipment for handling water and other vapor loads. It’s robust cast and ductile iron construction provides rugged, reliable operation.
REMANUFACTURED OR REBUILT STOKES 412J VACUUM PUMPS:
All rebuild prices include disassembly, inspection & cleaning. Replacement of seals, gasket, springs, o-rings & valves. Other parts replaced as required upon approval for an extra charge. Pumps are then tested & painted.
Specifications
STOKES 412J PUMP SPECIFICATIONS:
| Vacuum Pump Model | | 412J |
| Nominal Displacement | cfm | 300 |
| Nominal Displacement | l/m | 8,500 |
| Motor Power | hp | 10 |
| Phase | 3 | |
| Oil Capacity | ltr | 46 |
| Inlet/Outlet | 1/2 NPT | |
| Noise Level | dBA | 83 |
| Weight | lbs | 1875 |
Features
STOKES 412J ROTARY PISTON PUMP FEATURES:
- Cast and Ductile iron construction provides rugged reliable operation
- Low ultimate blank-off- pressures down to <10 -2 Torr
- Quiet operations
- Gas ballast standard on all models
- Compact footprint design
Applications
STOKES 412J PUMP APPLICATIONS:
- Automotive
- Chemical Processing
- Heat Treatment
- Pharmaceuticals
- Metallurgy
- Leak Detection
- Vacuum Meltng
- Vacuum Coating
- General Applications
Dimensions
Stokes 412J MICROVAC PUMP Dimensions:
Pumping Speed Curves
STOKES 412J pumping speed curves:
Compare
Stokes MICROVAC Series Rotary Piston PUMPS:
| Pump Model | 146H | 148H | 149H | 212H | 212J | 412H | 412J | 912H | |
| Nominal Displacement | cfm | 30 | 50 | 80 | 150 | 150 | 300 | 300 | 730 |
| Nominal Displacement | l/m | 833 | 1417 | 2250 | 2833 | 4,250 | 8,500 | 8,500 | 20,667 |
| Motor HP | hp | 1.5 | 2 | 3 | 7.5 | 7.5 | 10 | 10 | 30 |
| Phase | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | |
| Oil Capacity | ltr | 2 | 5 | 10 | 15 | 15 | 46 | 46 | 92 |
| Weight | lbs | 315 | 315 | 565 | 950 | 950 | 1750 | 1750 | 5500 |
| Noise Level | dBA | 71 | 72 | 73 | 75 | 77 | 83 | 83 | 85 |
Manual
Learn more about HVS leak testing services and helium leak detector rentals.
