WIGGENS P420 Oil-Free Pressure Pump and Compressed Air Supply System

Overview

The WIGGENS P420 Oil-Free Pressure Pump and Compressed Air Supply System is an engineered solution for laboratories requiring clean, oil-free, and stable positive-pressure air delivery. Designed around a maintenance-free, single-stage piston compression mechanism, the P420 eliminates lubricant contamination risks—ensuring compliance with ISO 8573-1 Class 0 (oil-free) air quality standards for critical applications. Its direct-coupled motor architecture eliminates belt slippage, gear wear, or alignment drift, delivering consistent pressure output and long-term repeatability across operational cycles. The unit operates within a thermally protected regime: an integrated bimetallic thermal cutoff automatically interrupts power when internal temperature exceeds safe thresholds (typically >95 °C), resuming operation only after passive cooling restores nominal thermal conditions. This safeguard ensures operational continuity while preserving motor winding integrity and bearing life under intermittent or extended duty cycles.

Key Features

• Oil-free piston pump design—zero risk of hydrocarbon contamination in delivered air stream
• Direct-drive motor coupling—no belts, pulleys, or transmission losses; optimized mechanical efficiency and vibration damping
• Acoustic enclosure with anti-vibration mounting—measured noise emission of ≤52 dB(A) at 1 m distance, suitable for shared lab environments
• Integrated thermal protection switch—automatic shutdown and self-resetting functionality prevents coil overheating and extends service life
• Compact footprint (310 × 152 × 165 mm) and lightweight construction (5.2 kg)—enables benchtop deployment without structural reinforcement
• G1/8 threaded inlet/outlet ports—compatible with standard laboratory pneumatic tubing and quick-connect fittings (e.g., Parker A-LOK, Swagelok SS-400)
• CE-marked and RoHS-compliant—meets EU Directive 2014/30/EU (EMC) and 2014/35/EU (LVD) requirements

Sample Compatibility & Compliance

The P420 delivers compressed air meeting ISO 8573-1:2010 Class 0 (absolute oil-free) and Class 4 particulate (≤5 µm) specifications when paired with optional filtration modules (WND30xx series). It supports continuous operation in ambient temperatures from 5 °C to 40 °C and relative humidity up to 80% non-condensing. As a Class II electrical appliance, it complies with IEC 61000-6-3 (emission) and IEC 61000-6-2 (immunity) standards. While not certified for medical gas generation per ISO 8573-7 or USP , its validated oil-free performance renders it suitable for GLP-aligned applications where trace hydrocarbon interference must be excluded—such as GC carrier gas supply, bioreactor sparging, and analytical instrument purge lines.

Software & Data Management

The P420 is a standalone analog device with no embedded microcontroller, digital interface, or data logging capability. Output pressure and flow are mechanically regulated and fixed—no electronic pressure control, PID tuning, or RS-232/USB connectivity is provided. This architecture prioritizes reliability, electromagnetic immunity, and regulatory simplicity in environments where firmware validation (e.g., FDA 21 CFR Part 11) would introduce unnecessary complexity. Users requiring audit-trail-capable pressure monitoring may integrate external calibrated pressure transducers (e.g., Honeywell ASDX series) and data acquisition systems compliant with ISO/IEC 17025 calibration traceability.

Applications

• Sparging and headspace pressurization of laboratory-scale bioreactors and fermenters (up to 5 L working volume)
• Carrier gas supply for gas chromatography (GC) and GC-MS systems requiring oil-free helium or nitrogen alternatives
• Pneumatic actuation of automated liquid handlers, valve manifolds, and sample introduction modules
• Controlled inert gas purging of gloveboxes, desiccators, and reaction vessels
• Calibration air source for differential pressure sensors and flow meters in HVAC or process validation setups
• Driving low-flow gas chromatography detectors (e.g., TCD, ECD) and microfluidic platforms

FAQ

Is the P420 certified for medical or pharmaceutical-grade compressed air?
No. It is not certified to ISO 8573-7 or USP . However, when used with WND30xx-series filtration (especially WND30123 or WND30567), it meets Class 0 oil-free and Class 4 particulate requirements suitable for non-invasive research and QC instrumentation.
Can output pressure be adjusted?
No. The P420 delivers a fixed maximum pressure of 5.5 bar. External pressure regulators (e.g., SMC ITV series) must be installed downstream for variable setpoint control.
What maintenance is required?
None beyond periodic inspection of intake filters and replacement of WND-series filter elements per manufacturer-recommended intervals (typically every 6–12 months depending on ambient dust load). The pump itself is sealed and non-serviceable.
Is the unit compatible with 110 V / 60 Hz power supplies?
No. The P420 is rated exclusively for 220–240 V / 50 Hz input. Use with 110 V networks requires an appropriately rated isolation transformer meeting IEC 61558-2-6 standards.
Does it include an air receiver tank?
No. The P420 is a continuous-duty compressor without an integrated reservoir. For pulsation dampening or peak-demand buffering, users must install an external ASME-stamped air receiver (e.g., 1–5 L capacity) with appropriate safety relief valves.