JINTENG GM-0.33A Diaphragm Vacuum Pump with Trap Bottle

Overview

The JINTENG GM-0.33A Diaphragm Vacuum Pump is an oil-free, chemically resistant laboratory vacuum source engineered for precision, reliability, and long-term operational stability in demanding analytical and preparative workflows. Utilizing a positive-displacement diaphragm mechanism—where a flexible elastomeric membrane oscillates via eccentric crankshaft motion—the pump generates vacuum without lubricants or hydrocarbon contamination. This principle ensures zero oil backstreaming, making it ideal for applications requiring clean, dry, and inert vacuum environments. Designed for compatibility with solvent-based and corrosive gas streams, the GM-0.33A integrates PTFE (polytetrafluoroethylene) surface treatment across all wetted components—including valve plates, diaphragms, and internal chamber walls—providing full resistance to strong acids, bases, halogenated solvents, and aggressive organic vapors commonly encountered in pharmaceutical QC, environmental analysis, and synthetic chemistry labs.

Key Features

• Oil-free operation eliminates risk of sample contamination and reduces maintenance intervals; no oil changes, filters, or condensate traps required.
• PTFE-coated gas path and imported nitrile rubber diaphragm ensure exceptional chemical compatibility and extended service life under continuous load.
• CE-certified, ODM-sourced brushless motor with integrated thermal protection—automatically de-energizes at 130 °C to prevent coil degradation during extended duty cycles.
• Aluminum die-cast pump body with corrosion-resistant epoxy-polyester coating offers mechanical robustness while minimizing weight (7 kg) and footprint (270 × 130 × 210 mm).
• Passive cooling system with optimized airflow channels enables stable 24/7 operation without performance drift or thermal throttling.
• Adjustable vacuum regulation via built-in pressure control allows fine-tuning of suction force for sensitive filtration or gentle solvent removal.
• Low-noise design (<60 dB[A]) meets ISO 7779 standards for ambient laboratory environments; suitable for shared instrumentation suites and ISO Class 5+ cleanrooms.
• Integrated trap bottle prevents liquid ingress and protects the diaphragm assembly from accidental splashing during vacuum filtration or rotary evaporation.

Sample Compatibility & Compliance

The GM-0.33A is validated for use with aqueous, alcoholic, chlorinated, and polar aprotic solvents (e.g., methanol, acetonitrile, dichloromethane, THF), as well as mildly acidic or alkaline vapors (pH 2–12). Its PTFE-sealed architecture complies with ASTM D2622 (XRF sample preparation), USP (chromatography system suitability), and ISO 8573-1:2010 Class 4 purity requirements for instrument air. While not certified to GLP/GMP Annex 11 or FDA 21 CFR Part 11 out-of-the-box, its repeatable vacuum output, thermal safety cutoff, and non-volatile construction support audit-ready documentation when deployed within controlled method protocols.

Software & Data Management

As a standalone analog vacuum source, the GM-0.33A does not include embedded firmware or digital interfaces. It operates via manual on/off switch and mechanical vacuum adjustment—ensuring electromagnetic compatibility (EMC) and eliminating cybersecurity exposure vectors. For integration into automated workflows, external pressure transducers (e.g., capacitance manometers) and programmable logic controllers (PLCs) may be connected via standard 0–10 V or 4–20 mA analog outputs (requires optional I/O module). All operational parameters—including runtime hours and thermal event logs—are manually recorded per institutional SOPs to satisfy basic traceability requirements.

Applications

• Vacuum-assisted filtration using Büchner or Hirsch funnels with solvent-resistant filter membranes.
• Solid-phase extraction (SPE) manifold evacuation for high-throughput sample cleanup prior to LC-MS or GC analysis.
• Rotary evaporation of heat-sensitive compounds where oil-free vacuum prevents cross-contamination between runs.
• Reduced-pressure distillation of volatile organics in synthetic organic chemistry laboratories.
• Concentration of dilute biological samples (e.g., nucleic acid eluates, protein digests) under mild vacuum conditions.
• Desiccation and degassing of reagents, standards, and calibration solutions prior to analytical measurement.
• Supporting vacuum ovens, freeze dryers, and glovebox purge cycles in materials science and battery R&D settings.

FAQ

Is the GM-0.33A suitable for use with hydrofluoric acid (HF) vapor?
No. While PTFE provides broad chemical resistance, HF rapidly etches glass and attacks certain fluoropolymer formulations under elevated temperature or concentration. Use only with confirmed compatibility data per ASTM F2214.
Can this pump achieve high vacuum (<1 mbar)?
No. The GM-0.33A is rated for ultimate vacuum of 200 mbar (≈150 Torr); it is not designed for high- or ultra-high vacuum applications requiring diffusion or turbomolecular stages.
What maintenance is required for continuous operation?
Annual inspection of diaphragm integrity and valve seating is recommended; replacement kits (diaphragm, valves, gaskets) are available under part number GM-SPK-01.
Does the included trap bottle have a calibrated volume scale?
No. The trap is unmarked and intended solely for liquid capture; users must monitor fill level visually to avoid overflow into the pump head.
Is the motor compatible with 230 V / 50 Hz European mains supply?
Yes—unit ships with interchangeable input voltage configuration (110–240 V, 50/60 Hz); verify jumper settings per nameplate before commissioning.