PFA Triangular Funnel 150 mm – High-Purity, Heat-Resistant, Chemically Inert Laboratory Funnel
| Brand | Binzhenghong |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Producer |
| Model | 150 mm |
| Price | USD 298 (FOB) |
| Material | Perfluoroalkoxy Alkane (PFA) |
| Transparency | Optically Clear |
| Max Operating Temperature | 260 °C |
| Chemical Resistance | Full Resistance to HF, Aqua Regia, Concentrated Acids/Bases, Organic Solvents |
| Customization | Available for Dimension, Port Geometry, and Mounting Interface |
Overview
The Binzhenghong PFA Triangular Funnel 150 mm is a precision-engineered laboratory funnel fabricated entirely from high-purity perfluoroalkoxy alkane (PFA), a fluoropolymer renowned for its exceptional chemical inertness, thermal stability, and optical clarity. Unlike conventional glass or polypropylene funnels, this device operates reliably across the full temperature range of −200 °C to +260 °C without deformation, leaching, or haze formation. Its triangular geometry—featuring three symmetrical sidewalls converging to a single outlet—is specifically optimized for controlled, laminar liquid flow during gravity-fed filtration, solvent transfer, or sample preparation in ultra-trace analytical workflows. Designed for compatibility with cleanroom-grade handling and Class 100/ISO 5 environments, the funnel eliminates metallic ion contamination and organic extractables, making it indispensable in semiconductor wafer cleaning, high-purity reagent dispensing, and ICP-MS sample introduction protocols.
Key Features
- Monolithic PFA construction ensures zero metal ion release and negligible extractables—validated per USP Class VI biocompatibility testing and ASTM D471 for fluid resistance.
- Optical transparency enables real-time visual monitoring of filtrate clarity, phase separation, or precipitate formation without compromising containment integrity.
- Triangular cross-section provides enhanced mechanical rigidity versus round-profile funnels of equivalent wall thickness, reducing flexure during vacuum-assisted or pressurized transfer operations.
- Smooth, non-stick internal surface (Ra < 0.2 µm) minimizes sample adhesion and facilitates quantitative recovery—critical for low-volume, high-value samples such as isotopically enriched standards or nanomaterial dispersions.
- Heat-resistant design supports hot filtration up to 260 °C, enabling direct integration with heated digestion blocks or steam-jacketed manifolds without thermal degradation.
- Standard 150 mm top aperture accommodates common filter papers (e.g., Whatman Grade 41, 42) and membrane discs (25–47 mm diameter); custom port diameters (3–12 mm) and tapered outlet angles available upon request.
Sample Compatibility & Compliance
This funnel demonstrates full compatibility with aggressive reagents routinely employed in trace-metal analysis and etch chemistry, including hydrofluoric acid (HF), aqua regia, boiling nitric acid (HNO₃), and piranha solution (H₂SO₄:H₂O₂). It complies with ISO 9001:2015 manufacturing controls and meets material specifications outlined in ASTM D4894 (standard specification for PFA resin). Batch-certified extractable test reports—including ICP-MS screening for ≤10 pg/mL Cr, Ni, Fe, Cu, Zn, and Na—are supplied with each order. The funnel is suitable for use under GLP and GMP conditions where audit-ready documentation of material traceability and lot-specific performance verification is required.
Software & Data Management
As a passive, non-electronic component, the PFA Triangular Funnel does not incorporate embedded firmware or data logging capabilities. However, it integrates seamlessly into digitally managed workflows: barcode-labeled units support LIMS (Laboratory Information Management System) tracking; custom engraving (e.g., asset ID, calibration date, lot number) is available via laser marking compliant with ISO/IEC 15415. Documentation packages include full material certificates (CoA), dimensional inspection reports (CMM-verified), and chemical resistance validation summaries—all delivered in PDF/A-1b format for long-term archival compliance.
Applications
- Ultra-clean transfer of HF-based etchants in semiconductor front-end process development.
- Filtration of high-purity solvents (e.g., sub-boiling distilled HNO₃, ultrapure water) prior to ICP-OES/ICP-MS analysis.
- Gravity-fed loading of acidic digestates into quartz or PFA sample vials for radiochemical separation.
- Preparation of calibration standards for environmental testing (EPA Method 200.8, ISO 17294-2).
- Inert sample fractionation in nuclear fuel cycle laboratories handling uranyl nitrate or plutonium solutions.
- Custom configurations support OEM integration into automated liquid handlers and closed-loop recirculation systems.
FAQ
Is this funnel suitable for use with hydrofluoric acid (HF)?
Yes—PFA exhibits complete resistance to anhydrous and aqueous HF across all concentrations and temperatures up to 260 °C, with no measurable weight loss or surface etching after 72-hour exposure.
Can the outlet port be threaded or fitted with a PFA stopcock?
Yes—custom machining options include NPT, metric parallel threads (e.g., M6×1, M10×1), and integrated PFA ball valves with PTFE-sealed actuators.
What is the maximum recommended vacuum pressure for filtration?
The funnel maintains structural integrity under continuous vacuum up to −0.95 bar (95 kPa); for optimal flow control with viscous or particulate-laden streams, we recommend using a coarse fritted disc support.
Do you provide dimensional inspection reports?
Yes—each unit undergoes coordinate measuring machine (CMM) verification per ASME Y14.5-2018 GD&T standards; reports include tolerance callouts for aperture diameter, wall angle, and outlet concentricity.
Is sterilization by autoclaving supported?
No—autoclaving (121 °C, saturated steam) is unnecessary and may induce localized stress whitening; dry heat at 180 °C for 2 hours achieves depyrogenation while preserving optical clarity and dimensional stability.
