Oerlikon Leybold Trivac Dual Stage Vacuum Pump 140002

Oerlikon Leybold TRIVAC D2.5E Dual-Stage Rotary Vane Vacuum Pump (140002)

The Oerlikon Leybold TRIVAC D2.5E (Part Number 140002) is a commercial-grade, oil-sealed dual-stage rotary vane vacuum pump engineered to deliver high reliability and steady gas-displacement kinetics within low-to-medium vacuum ranges. Frequently utilized as a dependable forevacuum backing line or a standalone benchtop exhaust, this model produces a nominal pumping speed up to 3.3 m³/h (2.1 CFM) and descends to an exceptional ultimate total pressure depth of $2 \times 10^{-3} \text{ mbar}$ ($1.5 \times 10^{-3} \text{ Torr}$). Its internal forced-feed lubrication matrix and robust anti-suckback protection make it highly optimized for continuous duty cycles in analytical instrument networks and pilot scale research configurations.

Technical Performance & Design

• Dual-Stage Condensation Scrubbing: Features a series-coupled rotor assembly configuration where the primary stage executes initial volume displacement and the secondary stage rapidly compresses residual fractions, achieving deep ultimate vacuum performance.
• Forced-Feed Internal Lubrication: Built around a dedicated mechanical oil pump that drives continuous lubrication into the rotor bearings, maintaining a uniform hydrodynamic fluid seal over the sliding vanes while suppressing heat build-up.
• Integrated Safety Anti-Suckback Valve: Driven by differential oil pressure, the integrated intake valve snaps sealed if the electrical supply drops, isolating upstream process chambers and manifolds from backward oil vapor migration.
• Chemical Vapor Tolerance Gas Ballast: Equipped with a manually adjustable gas ballast mechanism that purposefully admits a controlled flow of ambient air into the compression zone, preventing volatile solvent vapors from condensing inside the fluid sump.

Product Specifications

• Manufacturer Series / SKU: TRIVAC® E Series / Model D2,5E (Part No. 140002 / 140001 variant)
• Nominal Displacement Velocity (60 Hz): 3.3 m³/h (approx. 2.1 CFM)
• Nominal Displacement Velocity (50 Hz): 2.7 m³/h (approx. 1.6 CFM)
• Ultimate Total Pressure (Without Gas Ballast): $2 \times 10^{-3} \text{ mbar}$ ($1.5 \times 10^{-3} \text{ Torr}$ / 0.2 Pa)
• Motor Power Performance: 300 W (approx. 0.41 HP) Inductive Configuration
• Operational Core Velocities: 1,400 RPM (50 Hz) / 1,600 RPM (60 Hz)
• Vacuum Port Connections: Standard DN 16 KF Quick-Flange Intake and Exhaust ports
• Sump Oil Capacity: Minimum 0.30 Liters / Maximum 0.90 Liters
• Physical Footprint Dimensions (L x W x H): 383 x 127 x 225 mm (approx. 15.0 x 5.0 x 8.86 inches)
• Net Weight (Including Fluid Sump Fill): 15.3 kg (33.7 lbs)

Key Benefits & Applications

• Analytical Instrument Forelines: Serves as a quiet, vibration-isolated primary backing stage for high-vacuum systems like **Mass Spectrometers (MS), Electron Microscopes, and Turbomolecular Pumps**.
• Vacuum Drying & Freeze Drying: Optimizes performance inside benchtop lyophilizers and vacuum ovens, safely managing lingering outgassed water vapors via the adjustable gas ballast terminal.
• Hermetic System Leak Detection: Delivers the steady, non-pulsatile background pressure thresholds required by industrial **Helium leak detectors and gas analyzers** to yield clean baseline resolution.
• Corrosion-Resistant Architecture: Eliminates non-ferrous components from crucial contact areas, leveraging a robust aluminum oil reservoir box and heavy-duty elastomer FPM (Viton™) O-rings to extend operational life in the presence of aggressive process gases.

Used, tested to be in great working condition.

TRIVAC® is a registered trademark of Leybold GmbH (formerly Oerlikon Leybold Vacuum). Part number 140002 is factory-matched with standard vacuum pump oils (such as Leybold LVO 100). Specialized synthetic or PFPE lubricants must be used if processing highly corrosive elements or pure oxygen streams.