HUANKONG GHK-1400B Portable Oil-Lubricated Vacuum Pump
| Brand | HUANKONG |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GHK-1400B |
| Instrument Category | Other Vacuum Pumps |
| Product Type | Oil-Lubricated Rotary Vane Pump |
| Maximum Vacuum Level | > −96 kPa (absolute) |
| Flow Rate | 10 L/min (at atmospheric inlet) |
| External Dimensions | 130 × 100 × 220 mm |
| Weight | 2.3 kg |
| Power Source | Integrated Rechargeable Battery (Li-ion, nominal 12 V) |
Overview
The HUANKONG GHK-1400B is a compact, battery-powered oil-lubricated rotary vane vacuum pump engineered for field-deployable and benchtop laboratory applications requiring reliable low-to-medium vacuum generation. Operating on the principle of positive displacement via rotating eccentric vanes within an oil-sealed chamber, it achieves stable suction performance without external power infrastructure. Its design prioritizes mechanical robustness, thermal stability under intermittent duty cycles, and consistent volumetric throughput — making it suitable for vacuum filtration, gas sampling support, vacuum desiccation, and as a motive source for passive sampling devices such as non-powered instantaneous air or liquid samplers. The pump delivers a maximum vacuum level exceeding −96 kPa (absolute), corresponding to approximately 95% of standard atmospheric pressure reduction, sufficient for most general-purpose vacuum tasks in environmental monitoring, quality control labs, and educational settings.
Key Features
- Integrated rechargeable lithium-ion battery (12 V nominal) enabling cordless operation for up to 60 minutes at continuous 10 L/min flow — ideal for mobile sampling campaigns and remote site work.
- Oil-lubricated rotary vane mechanism ensures high sealing efficiency, extended service life, and stable vacuum output across ambient temperatures ranging from 5 °C to 40 °C.
- Compact footprint (130 × 100 × 220 mm) and lightweight construction (2.3 kg) facilitate one-handed transport and integration into portable analytical kits or mobile lab carts.
- Optimized internal oil reservoir with sight window and splash-resistant baffle minimizes oil carryover and supports maintenance intervals exceeding 500 operating hours under typical use conditions.
- Thermally protected motor winding and overcurrent cutoff circuitry provide fail-safe operation during extended duty cycles or inlet blockage events.
Sample Compatibility & Compliance
The GHK-1400B is compatible with standard 6–10 mm ID vacuum tubing (e.g., silicone, PVC, or reinforced nitrile), common filter flask adapters (e.g., 24/40 ground glass joints), and passive sampling manifolds requiring regulated negative pressure. It meets general safety requirements per IEC 61010-1:2010 for electrical equipment used in laboratory environments. While not certified to ATEX or IECEx standards for explosive atmospheres, its sealed motor housing and absence of ignition sources make it appropriate for non-hazardous zone applications. The pump’s oil-lubricated architecture complies with ISO 8573-1:2010 Class 4 specifications for compressed air purity — relevant when used in conjunction with vacuum-driven analytical instrumentation where trace hydrocarbon contamination must be controlled.
Software & Data Management
The GHK-1400B operates as a standalone analog device with no embedded firmware, digital interface, or data logging capability. Its operational status is indicated solely by LED power/vacuum readiness lights. For integration into GLP- or GMP-regulated workflows, users may pair it with external vacuum gauges (e.g., capacitance manometers or thermocouple sensors) connected to validated data acquisition systems compliant with FDA 21 CFR Part 11 requirements. Routine calibration of associated pressure measurement devices should follow ISO/IEC 17025-accredited procedures to ensure traceability in quality-controlled environments.
Applications
- Vacuum-assisted filtration in microbiology and environmental sample preparation (e.g., membrane filtration of water samples per EPA Method 1603).
- Powering non-motorized instantaneous air samplers for VOC or particulate collection in occupational hygiene surveys.
- Creating inert atmosphere conditions during solvent transfer or moisture-sensitive reagent handling.
- Supporting vacuum drying of thin-film samples prior to SEM or XRD analysis.
- Educational demonstrations of gas laws, phase transitions, and vacuum physics in undergraduate physics and chemistry laboratories.
FAQ
What type of vacuum oil is recommended for the GHK-1400B?
HUANKONG specifies a mineral-based vacuum pump oil meeting ISO VG 100 viscosity grade and ASTM D2889 specifications. Substitution with synthetic oils requires verification of chemical compatibility with nitrile seals and rotor materials.
Can this pump be operated continuously for more than one hour?
Continuous operation beyond 60 minutes at full load is not recommended without active cooling or duty-cycle interruption; thermal accumulation may trigger internal overload protection.
Is the pump suitable for corrosive gas applications?
No — the standard configuration lacks corrosion-resistant coatings or fluoropolymer wetted parts; exposure to acidic, alkaline, or halogenated vapors will degrade internal components and compromise vacuum integrity.
Does the GHK-1400B include a vacuum gauge?
No — vacuum level monitoring requires an externally connected analog or digital pressure sensor calibrated for negative pressure ranges down to −100 kPa.
What is the expected service life of the integrated battery?
Under normal charging cycles (≤0.5 C rate, 25 °C ambient), the Li-ion battery maintains ≥80% capacity after 300 charge/discharge cycles, equivalent to approximately 18–24 months of weekly field use.
