DRETOP TXZ-15B Rotary Vane Vacuum Pump

Overview

The DRETOP TXZ-15B is a robust, oil-lubricated rotary vane vacuum pump engineered for continuous-duty laboratory and industrial vacuum applications requiring stable base pressures in the 10⁻² to 10⁻¹ Pa range and high volumetric throughput. It operates on the classical Couette-flow principle: rotating vanes within an eccentrically mounted rotor compress incoming gas between the vane tips and stator wall, progressively reducing volume and expelling gas through the exhaust port after passing through the oil-sealed compression chamber. This design delivers high pumping efficiency across a wide inlet pressure range—from atmosphere down to ultimate vacuum—making it particularly suitable for processes involving moderate vapor loads, such as solvent removal, vacuum drying, rotary evaporation, and vacuum distillation. Unlike dry scroll or diaphragm pumps, the TXZ-15B leverages mineral oil as both sealing medium and coolant, enabling reliable handling of trace water vapor via its integrated gas ballast valve—a critical feature for moisture-prone applications like lyophilization support or vacuum oven operation.

Key Features

• Oil-lubricated rotary vane architecture with precision-ground vanes and hardened stator housing for extended service life and dimensional stability under thermal cycling.
• Integrated gas ballast valve allowing controlled admission of atmospheric air into the compression chamber to reduce condensation of water vapor and prevent oil emulsification—enabling sustained operation when processing humid or solvent-laden gases.
• Automatic anti-return oil check valve prevents backstreaming of pump oil into connected vacuum chambers during shutdown, safeguarding sensitive instrumentation and sample integrity.
• Optimized motor-pump coupling and vibration-damping mountings achieve noise levels ≤ 65 dB(A) at 1 meter—compliant with ISO 2151 for laboratory-grade acoustic performance.
• Designed for seamless integration with DRETOP vacuum ovens (e.g., VO series), rotary evaporators, and vacuum concentrators; KF25 flanged inlet/outlet ports conform to DIN 28413 standards for rapid, leak-tight connections.
• Motor rated at 1500 W, 380 V / 50 Hz, with Class F insulation and IP54 enclosure—suitable for continuous operation in ambient temperatures up to 40°C.

Sample Compatibility & Compliance

The TXZ-15B is compatible with non-corrosive, non-explosive, and non-particulate-laden gases. It is not recommended for use with halogenated solvents, strong oxidizers (e.g., Cl₂, O₃), or acidic vapors without prior condensation or chemical trapping. When used in GMP-regulated environments (e.g., pharmaceutical drying or API purification), the pump supports audit-ready operation when paired with documented maintenance logs and scheduled oil changes per ASTM D2889 guidelines. While the pump itself does not carry CE or UL certification out-of-the-box, its electrical and mechanical design adheres to IEC 60034 (rotating machinery) and ISO 8573-1 (compressed air purity classes, by analogy for oil mist control). For GLP-compliant labs, optional oil mist filters (DRETOP F-OIL-25) and exhaust condensers are available to meet local occupational exposure limits (e.g., OSHA PEL for mineral oil mist: 5 mg/m³).

Software & Data Management

The TXZ-15B is a standalone mechanical vacuum source and does not incorporate embedded digital controls or communication interfaces. However, it is fully compatible with third-party vacuum monitoring systems via analog 4–20 mA pressure transducer inputs (e.g., MKS Baratron or Pfeiffer TPG300 series) and can be integrated into LabVIEW, MATLAB, or SCADA-based process control architectures using standard relay outputs for run/stop interlocks and overtemperature shutdown signals. Maintenance tracking—including oil change intervals, vibration baseline readings, and bearing temperature logs—can be managed within electronic lab notebooks (ELN) compliant with 21 CFR Part 11 when paired with timestamped sensor data and user-authenticated entries.

Applications

• Vacuum drying of heat-sensitive pharmaceuticals, polymers, and ceramics in DRETOP VO-series vacuum ovens.
• Rotary evaporation of organic solvents (e.g., ethanol, acetone, ethyl acetate) with simultaneous water vapor load management.
• Support vacuum for freeze-dryer primary drying stages where low ultimate pressure and high pumping speed improve sublimation kinetics.
• Evacuation of glove boxes and vacuum desiccators in materials science labs.
• Process vacuum for thin-film deposition (e.g., thermal evaporation) when paired with secondary high-vacuum pumps (e.g., turbomolecular or diffusion pumps).
• Industrial packaging line vacuum hold-down and degassing of composite resins prior to curing.

FAQ

What is the ultimate vacuum level achievable with the TXZ-15B?
The ultimate pressure is ≤ 4 × 10⁻² Pa (measured with a calibrated capacitance manometer, gas ballast closed) and ≤ 4 × 10⁻¹ Pa with gas ballast open—consistent with ISO 21360-1 calibration protocols.
Can the TXZ-15B handle water vapor from vacuum drying applications?
Yes—the integrated gas ballast valve enables safe, continuous operation with up to ~10% water vapor content in the inlet stream, provided condensate is trapped upstream and oil is changed every 500 operating hours or per visible degradation.
Is this pump compatible with vacuum furnaces or coating systems?
It serves effectively as a roughing pump for high-vacuum systems (e.g., turbomolecular or oil diffusion pumps) but is not intended as a sole high-vacuum source for sputtering or e-beam evaporation.
What maintenance schedule is recommended?
Oil replacement every 500 hours or quarterly (whichever comes first); vane inspection every 2000 hours; inlet filter cleaning before each use; annual bearing lubrication verification per ISO 15243.
Does the TXZ-15B comply with FDA or EU GMP requirements?
As a utility equipment component, it supports GMP compliance when operated within validated procedures, documented maintenance, and appropriate oil specification (ISO VG 68 mineral oil, ASTM D2889 Grade A). Full qualification requires IQ/OQ documentation per client SOPs.