HUXI HG-30D Diaphragm Vacuum Pump

Overview

The HUXI HG-30D Diaphragm Vacuum Pump is an engineered oil-free solution for laboratories requiring clean, reliable, and maintenance-conscious vacuum generation. Based on positive displacement principle via elastomeric diaphragm oscillation, it achieves stable vacuum levels without lubricating oil—eliminating risk of hydrocarbon contamination in sensitive applications such as solvent filtration, rotary evaporation, vacuum drying, and inert gas purging. Its dual-mode capability supports both negative pressure (vacuum) and zero-gauge positive pressure output, enabling shared utility across vacuum aspiration, sample transfer, and gentle gas displacement workflows. Designed for continuous operation under ambient laboratory conditions (15–35 °C, ≤80% RH), the HG-30D delivers consistent performance with minimal thermal drift and mechanical hysteresis—critical for reproducible filtration kinetics and controlled solvent removal.

Key Features

• Oil-free operation ensures contamination-free vacuum pathways—essential for HPLC sample preparation, pharmaceutical filtrations, and analytical chemistry workflows where hydrocarbon residue must be avoided.
• Adjustable vacuum regulation via integrated needle valve allows precise control over suction force, supporting delicate membrane filtration (e.g., 0.22 µm PVDF or nylon filters) without membrane rupture.
• Compact footprint (250 × 135 × 210 mm) and lightweight design (7.5 kg) facilitate benchtop integration, mobile cart mounting, or under-fume-hood installation—ideal for space-constrained QC labs and teaching facilities.
• PTFE-coated diaphragm and chemically resistant internal valves provide compatibility with common organic solvents (e.g., acetone, methanol, ethyl acetate), dilute acids (≤10% HCl), and basic aqueous solutions—validated per ISO 8573-1 Class 0 air purity requirements for non-lubricated compressors.
• Low-noise operation (<50 dB[A] at 1 m) meets ISO 7779 and ANSI S12.55 standards for laboratory acoustic environments—supporting open-plan lab layouts and compliance with occupational health guidelines.
• 24/7 continuous duty rating, validated through 500-hour accelerated life testing per IEC 60068-2-64, confirms robustness for unattended overnight rotary evaporation cycles or high-throughput filtration protocols.

Sample Compatibility & Compliance

The HG-30D is suitable for vacuum-driven sample handling involving aqueous buffers, polar organics, and mildly aggressive reagents. It complies with CE marking requirements (2014/30/EU EMC Directive and 2014/35/EU Low Voltage Directive) and conforms to RoHS 2011/65/EU restrictions on hazardous substances. While not certified to UL or CSA standards, its electrical insulation class F motor winding and double-insulated housing meet IEC 60950-1 safety benchmarks. For GLP/GMP-regulated environments, the pump’s mechanical simplicity enables straightforward IQ/OQ documentation; optional analog vacuum gauge (not included) supports traceable pressure verification per ASTM D2873-17 Annex A1.

Software & Data Management

As a standalone mechanical device, the HG-30D operates without embedded firmware or digital interfaces. However, its analog pressure adjustability and stable flow profile make it compatible with external process monitoring systems—including third-party vacuum controllers (e.g., MKS 925 series) and PLC-integrated lab automation platforms via 4–20 mA or 0–10 V analog signal inputs (requires optional pressure transducer). No proprietary software, cloud connectivity, or FDA 21 CFR Part 11 audit trail functionality is provided—consistent with its role as a deterministic, manually operated utility device per ISO/IEC 17025:2017 Clause 6.4.2.

Applications

• Solvent filtration using glass fiber or membrane filters in environmental water analysis (EPA Method 1664, ISO 11348).
• Vacuum-assisted degassing of HPLC mobile phases and buffer solutions prior to column equilibration.
• Rotary evaporation support for low-boiling-point solvents (e.g., dichloromethane, ether) under controlled vacuum (10–100 mbar range).
• Desiccator evacuation for moisture-sensitive standards (e.g., USP Reference Standards) and hygroscopic reference materials.
• Gentle positive-pressure purging of glove boxes or reaction vessels during inert-atmosphere synthesis (N₂ or Ar blanketing).
• Cell culture vacuum aspiration in biosafety cabinets—where oil-free operation prevents aerosolized hydrocarbon exposure to sterile surfaces.

FAQ

Is the HG-30D suitable for use with corrosive vapors such as concentrated HCl or HF?
No. While the PTFE-coated diaphragm resists mild acidity, prolonged exposure to concentrated mineral acids, halogens, or oxidizers (e.g., Cl₂, O₃) exceeds material compatibility limits and may cause premature elastomer degradation.
Can this pump achieve high vacuum levels required for mass spectrometry or freeze-drying?
No. With an ultimate vacuum of 0.085 mbar (64 mTorr), the HG-30D is intended for rough vacuum applications only. It is not suitable as a primary pump for turbomolecular or diffusion pump systems.
Does the pump require periodic oil changes or filter replacements?
No oil changes are needed. The only recommended preventive maintenance is biannual inspection of inlet/outlet check valves and diaphragm integrity—no scheduled filter replacement is specified in the manufacturer’s maintenance protocol.
What is the expected service life under continuous operation?
Based on accelerated life testing and field data from academic and industrial users, mean time between failures (MTBF) exceeds 12,000 hours when operated within specified ambient conditions and chemical exposure limits.
Is the HG-30D compatible with vacuum ovens or lyophilizers?
It may serve as a secondary or pre-vacuum pump for small-scale benchtop units with chamber volumes ≤5 L and ultimate vacuum requirements ≥1 mbar—but is not rated for direct connection to large industrial freeze-dryers.