2XZ-2 Rotary Vane Oil-Sealed Vacuum Pump

Overview

The 2XZ-2 Rotary Vane Oil-Sealed Vacuum Pump is a compact, two-stage, direct-coupled vacuum generation system engineered for reliable low-to-medium vacuum performance in laboratory and light industrial environments. Operating on the principle of positive displacement via rotating vanes within an eccentrically mounted rotor chamber, the pump draws gas molecules through intake ports, compresses them between the vanes and stator wall, and exhausts them through an oil-sealed discharge valve. The oil serves dual functions: sealing microscopic clearances between vanes and housing to minimize backstreaming, and providing continuous lubrication and cooling during operation. Designed to achieve ultimate pressures down to 6 × 10⁻² Pa (4.5 × 10⁻⁴ Torr) under standard conditions, the 2XZ-2 delivers a nominal pumping speed of 2 L/s at 50 Hz — making it suitable for applications requiring stable base vacuum levels without ultra-high vacuum requirements.

Key Features

• Two-stage direct-coupled rotary vane architecture for improved ultimate vacuum and enhanced compression ratio over single-stage designs
• Compact footprint (320 × 150 × 250 mm) and lightweight construction (≤18 kg), facilitating integration into benchtop vacuum systems and portable setups
• Low-noise operation (<65 dB(A) at 1 m), achieved through precision-balanced rotor assembly and optimized oil circulation dynamics
• Oil-sealed design with integrated oil mist separator and sight glass for real-time oil level monitoring and maintenance convenience
• Thermal protection switch prevents motor overheating during extended duty cycles or inlet overpressure conditions
• Standard ISO-KF 16 (NW16) inlet flange compatible with common vacuum tubing, valves, and gauges per ISO 2861 and DIN 28403 specifications

Sample Compatibility & Compliance

The 2XZ-2 is intended for use with non-corrosive, dry, and non-particulate gases — including ambient air, nitrogen, argon, and inert process atmospheres. It is not rated for solvent vapors, acidic or alkaline gases, halogenated compounds, or condensable vapors without auxiliary cold traps or chemical scrubbers. As an oil-lubricated mechanical vacuum pump, it complies with general safety requirements outlined in IEC 61000-6-3 (EMC emission standards) and meets CE marking criteria for machinery under Directive 2006/42/EC when installed with appropriate guarding and grounding. While not certified to ISO 8573-1 Class 0 for oil-free air, its oil-sealed configuration satisfies typical vacuum class requirements for freeze-drying, vacuum impregnation, and analytical sample preparation per ASTM E1359 and USP guidelines for non-sterile vacuum processes.

Software & Data Management

The 2XZ-2 operates as a standalone mechanical device without embedded digital control or communication interfaces. It features manual on/off switching via front-panel toggle and requires no firmware, drivers, or host software. For system-level integration, users may connect analog pressure transducers (e.g., Pirani or capacitance manometers) to external data loggers or SCADA platforms to monitor inlet pressure trends, runtime hours, and thermal status. Audit trails for maintenance intervals — including oil replacement (recommended every 500 operating hours), filter cleaning, and vane inspection — should be recorded manually in accordance with GLP-compliant laboratory notebooks or electronic quality management systems (eQMS) supporting 21 CFR Part 11–compliant electronic signatures where applicable.

Applications

• Primary vacuum source for laboratory freeze-dryers (lyophilizers) in pharmaceutical and biotech sample preservation
• Evacuation of vacuum desiccators and glove boxes used in moisture-sensitive material handling
• Support vacuum for thin-film deposition systems (e.g., thermal evaporation) prior to high-vacuum stage activation
• Gas analysis sample preparation — degassing solvents, evacuating GC sample vials, and conditioning mass spectrometer ion sources
• Vacuum packaging validation in food science labs and medical device sterilization R&D
• Leak testing of sealed components using pressure-rise or helium accumulation methods (when paired with calibrated leak standards)

FAQ

Can the 2XZ-2 be used with corrosive or solvent-laden vapors?
No. Exposure to aggressive chemicals or condensable vapors will degrade the pump oil, cause vane sticking, and accelerate wear. Use only with dry, non-reactive gases — install a cold trap or adsorption filter for marginal cases.
What is the recommended oil change interval?
Every 500 hours of cumulative operation or quarterly — whichever occurs first. Use only ISO VG 68 mineral-based vacuum pump oil meeting DIN 51506 VDL specifications.
Is this pump suitable for high-vacuum applications?
No. The 2XZ-2 is a roughing pump designed to reach base pressures ~10⁻¹–10⁻² Pa. It must be paired with a high-vacuum pump (e.g., turbomolecular or diffusion pump) for pressures below 10⁻³ Pa.
Does it meet FDA or GMP requirements for pharmaceutical manufacturing?
It is not GMP-certified as a standalone unit, but may be qualified as part of a validated vacuum system under ICH Q7 and EU Annex 15 protocols when operated within documented SOPs and maintenance schedules.
Can it be operated continuously?
Yes — provided ambient temperature remains below 40°C, ventilation is unobstructed, and duty cycle does not exceed 80% without intermittent cooling periods.