Leybold SOGEVAC NEO D65 Vacuum Pump (970402V)
The Leybold SOGEVAC NEO D line represents the next evolution in oil-sealed rotary vane vacuum pumps. It delivers a compelling "triple hit" of performance: cleaner operation, quieter running, and dramatically longer service intervals.
What Makes It Unique
At its core, the NEO D series uses advanced two-stage rotary vane technology (available in pumping speeds from ~16 to 65 m³/h at 50 Hz, with variants up to higher flows). What sets it apart is its integrated high-efficiency exhaust filtration built directly inside the oil casing, combined with a warm demister.
This design traps over 99% of oil mist and vapors, resulting in virtually oil-emission-free exhaust and oil loss reduced to less than 1 ppm—often up to 100 times lower than traditional pumps. No external exhaust filter is needed, which keeps the footprint compact and simplifies installation.
The pumps run remarkably quietly (as low as 52–57 dB(A) depending on model and variant), with low vibration that makes them suitable for noise-sensitive environments like laboratories, analytical instruments, or shared workspaces.
They maintain reliable, continuous operation from atmospheric pressure all the way down to ultimate pressures around 10⁻³ mbar (partial) or better with gas ballast for handling condensable vapors (water vapor tolerance up to 10 mbar).
Additional Advantages
Cutting-edge shaft seal technology paired with long-life hydrocarbon oils extends maintenance intervals significantly—often to 3 years or more between oil changes (after the initial break-in period).
Robust industrial-grade construction allows full-time duty at any inlet pressure without compromise.
User-friendly features include easy access for service, integrated oil return circuits, and options for manual or electric gas ballast.
In short, the SOGEVAC NEO D isn't just another rotary vane pump—it's engineered as a cleaner, quieter, and more "set-it-and-forget-it" workhorse for industrial processes, analytical applications, freeze drying, coating, and medium vacuum needs where minimal emissions, low noise, and maximum uptime matter most.
| Specifications | |
| Voltage | 3~ 230/460V |
| Nominal speed (m^3/h) | 89 |
| Nominal speed (cfm) | 52.4 |
| Pumping speed (m^3/h) | 76 |
| Pumping speed (cfm) | 44.7 |
| Ultimate total pressure without gas ballast (mbar) | < 8 x 10^-3 |
| Ultimate total pressure without gas ballast (torr) | < 6 x 10^-3 |
| Ultimate total pressure with gas ballast (mbar) | < 1 x 10^-1 |
| Ultimate total pressure with gas ballast (torr) | < 0.75 x 10^-1 |
| Water vapor tolerance (mbar) | 10 |
| Water vapor tolerance (torr) | 7.5 |
| Oil capacity l | 3 |
| Oil capacity qt | 3.2 |
| Noise level dB(A) | 58 |
| Three-phase motor kW | 2.6 |
| Three-phase motor HP | 3.5 |
| Weight kg | 88 |
| Weight lbs | 194 |
| Flanges, DN | 40 ISO-KF |

The Leybold SOGEVAC NEO D line represents the next evolution in oil-sealed rotary vane vacuum pumps. It delivers a compelling "triple hit" of performance: cleaner operation, quieter running, and dramatically longer service intervals.
What Makes It Unique
At its core, the NEO D series uses advanced two-stage rotary vane technology (available in pumping speeds from ~16 to 65 m³/h at 50 Hz, with variants up to higher flows). What sets it apart is its integrated high-efficiency exhaust filtration built directly inside the oil casing, combined with a warm demister.
This design traps over 99% of oil mist and vapors, resulting in virtually oil-emission-free exhaust and oil loss reduced to less than 1 ppm—often up to 100 times lower than traditional pumps. No external exhaust filter is needed, which keeps the footprint compact and simplifies installation.
The pumps run remarkably quietly (as low as 52–57 dB(A) depending on model and variant), with low vibration that makes them suitable for noise-sensitive environments like laboratories, analytical instruments, or shared workspaces.
They maintain reliable, continuous operation from atmospheric pressure all the way down to ultimate pressures around 10⁻³ mbar (partial) or better with gas ballast for handling condensable vapors (water vapor tolerance up to 10 mbar).
Additional Advantages
Cutting-edge shaft seal technology paired with long-life hydrocarbon oils extends maintenance intervals significantly—often to 3 years or more between oil changes (after the initial break-in period).
Robust industrial-grade construction allows full-time duty at any inlet pressure without compromise.
User-friendly features include easy access for service, integrated oil return circuits, and options for manual or electric gas ballast.
In short, the SOGEVAC NEO D isn't just another rotary vane pump—it's engineered as a cleaner, quieter, and more "set-it-and-forget-it" workhorse for industrial processes, analytical applications, freeze drying, coating, and medium vacuum needs where minimal emissions, low noise, and maximum uptime matter most.
| Specifications | |
| Voltage | 3~ 230/460V |
| Nominal speed (m^3/h) | 89 |
| Nominal speed (cfm) | 52.4 |
| Pumping speed (m^3/h) | 76 |
| Pumping speed (cfm) | 44.7 |
| Ultimate total pressure without gas ballast (mbar) | < 8 x 10^-3 |
| Ultimate total pressure without gas ballast (torr) | < 6 x 10^-3 |
| Ultimate total pressure with gas ballast (mbar) | < 1 x 10^-1 |
| Ultimate total pressure with gas ballast (torr) | < 0.75 x 10^-1 |
| Water vapor tolerance (mbar) | 10 |
| Water vapor tolerance (torr) | 7.5 |
| Oil capacity l | 3 |
| Oil capacity qt | 3.2 |
| Noise level dB(A) | 58 |
| Three-phase motor kW | 2.6 |
| Three-phase motor HP | 3.5 |
| Weight kg | 88 |
| Weight lbs | 194 |
| Flanges, DN | 40 ISO-KF |



