JINTENG GM-0.5B Diaphragm Vacuum Pump with Trap Bottle

Overview

The JINTENG GM-0.5B Diaphragm Vacuum Pump is an oil-free, corrosion-resistant laboratory vacuum source engineered for precision and reliability in demanding analytical and preparative workflows. Utilizing a positive-displacement diaphragm mechanism, it achieves stable vacuum generation without lubricants or hydrocarbon contamination—making it ideal for applications requiring clean, chemically inert evacuation environments. Its dual-head negative-pressure configuration delivers consistent 30 L/min free-air displacement while maintaining an ultimate vacuum level of 50 mbar (equivalent to ≥0.095 MPa absolute pressure), suitable for routine rotary evaporation, filtration, degassing, and vacuum drying. Constructed with die-cast aluminum housing and PTFE-coated wetted surfaces, the GM-0.5B resists aggressive solvents, acids, and bases—ensuring long-term integrity in QC labs, pharmaceutical R&D, and academic chemistry departments.

Key Features

• Oil-free operation eliminates risk of backstreaming contamination and eliminates maintenance associated with oil changes or vapor traps.
• Imported nitrile rubber (NBR) diaphragms provide high elasticity, low hysteresis, and extended service life under cyclic load conditions.
• All gas-contact surfaces—including valves, chamber walls, and inlet/outlet manifolds—are coated with PTFE (Teflon®) for comprehensive chemical resistance per ASTM D149 and ISO 10993-5 compatibility guidelines.
• Integrated thermal cut-off switch interrupts power at 130 °C, protecting the CE-certified ODM motor during prolonged duty cycles or ambient overheating.
• Forced-air cooling system enables continuous 24-hour operation without performance degradation or thermal drift.
• Adjustable vacuum regulation via built-in pressure control allows fine-tuning of suction force for sensitive samples or multi-stage vacuum processes.
• Low-noise design (<60 dB[A] at 1 m) complies with ISO 3744 acoustic emission standards for shared laboratory environments.
• Compact footprint (350 × 130 × 220 mm) and lightweight chassis (10 kg) facilitate benchtop integration, mobile cart mounting, or fume hood installation.

Sample Compatibility & Compliance

The GM-0.5B is compatible with standard glassware interfaces (e.g., Ø6 mm tubing, B-14/B-19 ground joints via adapters) and integrates seamlessly with rotary evaporators (e.g., IKA RV 8, Buchi R-300), vacuum ovens, solid-phase extraction manifolds, and filtration assemblies. Its PTFE-wetted path meets USP Class VI material requirements for extractables profiling and supports GLP-compliant documentation when paired with validated pressure transducers. While not intrinsically rated for hazardous area use (ATEX/IECEx), its non-sparking motor and sealed electronics conform to IEC 61000-6-3 EMC emission limits and EN 60335-1 safety standards for household and similar electrical appliances.

Software & Data Management

The GM-0.5B operates as a standalone analog vacuum source and does not include embedded firmware, digital display, or data logging capability. However, it is fully compatible with external vacuum controllers (e.g., Vacuubrand VACUU·SELECT, KNF ECODRIVE series) and third-party LabVIEW or Python-based acquisition systems via analog 0–10 V or 4–20 mA pressure feedback signals (when used with optional vacuum transducer add-ons). All mechanical adjustments—including throttle valve position and trap bottle orientation—are manually calibrated and documented per internal SOPs to support FDA 21 CFR Part 11 audit readiness where electronic records are maintained externally.

Applications

• Rotary evaporation of heat-sensitive organic compounds under controlled sub-atmospheric pressure
• Vacuum-assisted gravity and pressure filtration of corrosive aqueous or organic suspensions
• Deaeration of polymer precursors, adhesives, and resin formulations prior to casting or curing
• Lyophilization pre-chamber evacuation in pilot-scale freeze-dryer systems
• Gas sampling and purge-and-trap concentration for GC-MS sample preparation
• Evacuation of Schlenk lines and glovebox antechambers during inert-atmosphere synthesis

FAQ

Is the GM-0.5B certified for use in regulated GMP environments?
It meets general electrical safety (EN 60335-1) and EMC (EN 61000-6-3) requirements; however, full GMP validation requires site-specific IQ/OQ protocols and integration with traceable pressure monitoring hardware.
Can this pump handle solvent vapors from rotary evaporation?
Yes—its PTFE-coated internals and integrated trap bottle (included) mitigate condensate ingress; for highly volatile or low-boiling solvents (e.g., diethyl ether, pentane), additional cold traps are recommended.
What is the expected diaphragm lifetime under continuous operation?
Based on accelerated lifecycle testing at 30 L/min and 50 mbar, typical service life exceeds 10,000 hours when operated within 7–40 °C ambient and protected from particulate ingress.
Does the pump include vacuum gauge calibration documentation?
The included mechanical vacuum gauge (range: 0–0.1 MPa) is factory-set but not individually calibrated; users should verify accuracy against a NIST-traceable reference standard before critical applications.
Is replacement diaphragm kit available separately?
Yes—JINTENG supplies OEM diaphragm assemblies (P/N: GM-0.5B-DIA-KIT) with batch-specific QC certificates for scheduled preventive maintenance.