WIGGENS GH12L Oil-Lubricated Diaphragm Air Compressor
| Key | Brand: WIGGENS |
|---|---|
| Origin | Germany |
| Model | GH12L |
| Pump Type | Oil-Lubricated Diaphragm Compressor |
| Maximum Flow Rate | 12 L/min |
| Maximum Operating Pressure | 8.5 bar |
| Adjustable Output Pressure Range | 0–8.5 bar |
| Motor Power | 400 W |
| Motor Speed | 1450 rpm |
| Tank Volume | 8 L |
| Dimensions (W×D×H) | 550 × 300 × 560 mm |
| Weight | 40 kg |
| Inlet/Outlet Port | 6 mm push-to-connect fitting |
| Dew Point (at ambient pressure) | -20 °C |
| Particle Filtration Efficiency | ≥99.9999% for particles ≥0.01 µm |
Overview
The WIGGENS GH12L is a high-performance, oil-lubricated diaphragm air compressor engineered for continuous-duty laboratory applications requiring clean, stable, and precisely regulated compressed air. Unlike scroll or piston compressors, the GH12L employs a robust diaphragm compression mechanism coupled with an integrated oil-lubricated drive system—ensuring consistent volumetric efficiency, minimal pulsation, and extended service life under sustained load. Its design prioritizes gas purity and operational safety: an internal stainless-steel pressure tank eliminates corrosion-induced particulate contamination, while a three-stage filtration train—including a coalescing pre-filter, high-efficiency micro-mist separator (0.01 µm retention), and desiccant dryer—delivers air meeting ISO 8573-1 Class 2:2:2 specifications (solid particles ≤0.1 µm, water dew point ≤−20 °C at atmospheric pressure, oil content ≤0.01 mg/m³). This level of purity makes the GH12L suitable as a primary air source for nitrogen generators, zero-air generators, gas chromatography (GC) carrier gas supply, FTIR purge systems, and other analytical instrumentation demanding ultra-low hydrocarbon and moisture content.
Key Features
- Stainless-steel pressure tank (8 L capacity) resistant to oxidation and internal scale formation, ensuring long-term gas integrity and eliminating metallic particulate shedding
- Triple-stage air treatment system: inlet particulate filter (5 µm), micro-mist coalescer (0.01 µm), and desiccant dryer achieving −20 °C atmospheric pressure dew point
- Digital pressure switch with programmable start/stop thresholds (0–8.5 bar range), enabling demand-based motor control and reducing mechanical wear
- Thermal cut-off protection and spring-loaded safety relief valve (set at 9.5 bar) compliant with PED 2014/68/EU for overpressure prevention
- Direct-drive motor (1450 rpm, 400 W) with vibration-dampening mounts and acoustic insulation—operating noise <62 dB(A) at 1 m
- Compact footprint (550 × 300 × 560 mm) and modular 6 mm push-to-connect interface for rapid integration into existing lab gas networks
Sample Compatibility & Compliance
The GH12L is compatible with all standard laboratory gas delivery infrastructure utilizing 6 mm polyethylene or polyurethane tubing. Its output meets critical purity requirements for GC-FID, GC-TCD, ICP-MS auxiliary gas lines, and calibration gas dilution systems. The unit conforms to EN 60335-1 (safety of electrical appliances), EN 61000-6-3 (EMC emissions), and carries CE marking for the European Economic Area. While not classified as medical-grade equipment, its filtration performance satisfies ISO 8573-1:2010 Class 2 for solid contaminants and Class 2 for water—making it appropriate for GLP-compliant laboratories where documented air quality is required. Optional G1/4″ and G1/2″ filter manifold kits support scalable integration with larger distribution manifolds or multi-instrument setups.
Software & Data Management
The GH12L operates as a standalone analog-controlled system without embedded firmware or digital connectivity. However, its digital pressure switch provides real-time local readout and configurable hysteresis settings—enabling traceable pressure setpoint logging when paired with external data acquisition hardware (e.g., LabVIEW-compatible DAQ modules or PLC-based SCADA systems). For regulated environments, users may implement manual logbook entries or integrate the unit into facility-wide preventive maintenance schedules using standardized SOP templates aligned with ISO/IEC 17025 clause 6.4.2 (equipment management). Replacement filter elements (e.g., WND3003-01 micro-mist core, WND3002-01 oil mist core) are serialized and supplied with batch-specific certificates of conformance, supporting audit readiness per FDA 21 CFR Part 11 when used in pharmaceutical QC labs.
Applications
- Primary air supply for membrane-based nitrogen generators and catalytic zero-air generators
- Carrier, make-up, and detector gases in gas chromatography systems (especially FID, ECD, and TCD detectors)
- Purge gas for Fourier-transform infrared (FTIR) spectrometers and laser-based optical benches
- Actuation air for pneumatic valves, sample handling robotics, and automated liquid handlers
- Pressurization source for SPE manifolds, filtration systems, and controlled-environment glove boxes
- Calibration gas dilution systems requiring stable flow and low-hydrocarbon background
FAQ
Is the GH12L suitable for use with mass spectrometry instruments?
Yes—when equipped with the optional WND30123 triple-filter kit (air + micro-mist + oil-mist), its output meets hydrocarbon and particulate limits required for many benchtop MS auxiliary gas inlets. However, for high-resolution or orbitrap systems, verify compatibility with your instrument manufacturer’s gas specification sheet.
What maintenance intervals are recommended for the filtration system?
Under typical 8-hour/day lab operation, replace the inlet particulate filter every 6 months, the micro-mist and oil-mist cores annually, and the desiccant cartridge every 12–18 months—depending on ambient humidity levels. Filter replacement kits (e.g., DB-FIL101) include calibrated replacement elements with traceable lot documentation.
Can output pressure be regulated downstream without affecting flow stability?
Yes—the GH12L maintains ±0.2 bar pressure regulation across its full 0–8.5 bar range. When paired with a precision needle valve or electronic pressure regulator (e.g., Parker 99 series), stable flow control is achievable down to 0.5 L/min without compressor cycling.
Does the unit comply with noise regulations for open-plan laboratory environments?
At 62 dB(A) measured per ISO 3744, the GH12L falls within acceptable limits for most academic and industrial lab spaces. For ultra-quiet zones (e.g., electrophysiology suites), optional acoustic enclosures or remote installation via extended air lines are recommended.
Is the stainless-steel tank certified for oxygen service?
No—the GH12L is not cleaned or passivated for oxygen service and must not be used with O₂ or oxidizing gas mixtures. It is rated exclusively for compressed ambient air.
