HUXI HVP-1.2B Chemically Resistant Diaphragm Vacuum Pump

Overview

The HUXI HVP-1.2B is an oil-free, chemically resistant diaphragm vacuum pump engineered for precision laboratory vacuum applications requiring inert fluid handling and long-term operational stability. Operating on positive displacement principle via a PTFE-sandwich diaphragm actuated by an 80 W brushless motor, the pump delivers a nominal pumping speed of 20 L/min (1.2 m³/h) and achieves an ultimate vacuum of ≤2 mbar—sufficient for routine processes including rotary evaporation, vacuum concentration, reduced-pressure distillation, solid-phase extraction (SPE), and centrifugal acceleration under vacuum. Its fully sealed, dry-running architecture eliminates oil contamination risks, making it suitable for analytical sample preparation workflows where solvent purity and system cleanliness are critical per ISO/IEC 17025 and GLP-compliant environments.

Key Features

• Chemical resistance across full wetted path: PTFE-sandwich diaphragm, FFKM exhaust valves, ECTFE pump chamber reinforced with carbon fiber, and hard-anodized + PTFE-coated clamping plates ensure compatibility with aggressive solvents (e.g., chlorinated hydrocarbons, strong acids/bases, acetone, THF) and prevent degradation during extended operation.
• Stable vacuum control: Integrated vacuum regulating valve enables precise adjustment of suction pressure without external controllers; combined with low-mass diaphragm dynamics, it supports reproducible process conditions in multi-step vacuum protocols.
• Compact and lightweight design: At 315 × 144 × 215 mm and 7 kg, the unit integrates seamlessly into fume hoods, benchtop rotary evaporators, and modular vacuum manifolds—ideal for space-constrained QC labs and academic research settings.
• Low-noise, maintenance-optimized architecture: Brushless DC motor with dual thermal protection, tool-free access to diaphragm and valve assemblies, and standardized 10 mm barbed PTFE/PVDF fittings simplify preventive maintenance and reduce downtime.
• Continuous-duty rated: Designed for uninterrupted operation up to 24 h/day under typical load profiles (e.g., 60–80% of max vacuum), validated per IEC 61000-6-3 for electromagnetic compatibility and IEC 60068-2 for mechanical robustness.

Sample Compatibility & Compliance

The HVP-1.2B is compatible with aqueous, organic, and mixed-phase samples processed under vacuum—including volatile, corrosive, or particulate-laden streams when used with optional inlet filters (solvent filter and dust filter kits). All wetted materials comply with USP Class VI biocompatibility requirements and meet ASTM D471 for elastomer resistance to laboratory solvents. The pump’s construction supports compliance with ISO 5801 (fan/pump performance testing), ISO 21509 (vacuum terminology), and aligns with FDA 21 CFR Part 11 data integrity expectations when paired with validated vacuum monitoring systems.

Software & Data Management

As a standalone analog vacuum source, the HVP-1.2B does not include embedded digital controls or firmware. However, its analog output interface (0–10 V or 4–20 mA signal optional upon request) enables integration into centralized lab automation platforms (e.g., LabVantage, Thermo Fisher SampleManager) for vacuum parameter logging, audit trail generation, and SOP-driven process sequencing. When used with the included stainless steel vacuum gauge and regulating valve, operators can manually document vacuum setpoints and duration—supporting traceability requirements under ISO/IEC 17025 Clause 7.7 and GMP Annex 11 Annexes.

Applications

• Rotary evaporation of heat-sensitive compounds (e.g., natural product isolates, pharmaceutical intermediates)
• Vacuum-assisted concentration of biological extracts and environmental water samples
• Reduced-pressure distillation of high-boiling-point solvents (e.g., DMF, DMSO, ethylene glycol)
• Solid-phase extraction (SPE) manifold support for pesticide residue analysis (AOAC 2007.01)
• Inert-atmosphere drying of hygroscopic reference standards (USP )
• Centrifugal vacuum acceleration for rapid membrane filtration in microbiological assays

FAQ

Is the HVP-1.2B suitable for use with hydrochloric acid vapors?

Yes—the ECTFE chamber, PTFE diaphragm, and FFKM valves resist concentrated HCl vapor exposure at temperatures ≤40 °C; however, continuous operation above 30 °C requires active cooling and inline condensation trapping.
Can this pump be integrated with a PLC-controlled vacuum manifold?

Yes—via optional analog signal output modules (0–10 V or 4–20 mA), enabling real-time vacuum feedback and automated pressure ramping in regulated manufacturing environments.
What is the recommended service interval for diaphragm replacement?

Under typical usage (≤12 h/day, non-particulate loads), the PTFE-sandwich diaphragm maintains functional integrity for ≥12 months; visual inspection every 90 days is advised per manufacturer maintenance protocol HUXI-MP-2023.
Does the pump meet CE or UL safety certification?

The HVP-1.2B complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and carries CE marking; UL listing is available under custom order with additional conformity assessment.
Is the standard solvent filtration kit compatible with acetonitrile-based mobile phases?

Yes—the stainless steel housing and PTFE filter membrane (pore size: 0.45 µm standard) exhibit no measurable leachables or swelling in acetonitrile, methanol, or water/acetonitrile gradients per USP extractables testing.