ILMVAC WOB-L Vacuum Piston Pump 2567C-50

Overview

The ILMVAC WOB-L Vacuum Piston Pump 2567C-50 is a compact, oil-free reciprocating piston vacuum pump engineered for reliable, maintenance-free operation in analytical laboratories, small-scale vacuum ovens, freeze dryers, degassing stations, and gas sampling systems. Unlike rotary vane or diaphragm pumps, the WOB-L mechanism employs a precision-machined, dynamically balanced piston with integrated PTFE-coated seals and low-friction linear guidance—enabling true dry operation without lubricants, hydrocarbon contamination, or oil backstreaming. This architecture delivers stable vacuum performance down to <80 mbar (absolute), with high volumetric efficiency across variable load conditions. Its robust cast-aluminum housing, vibration-damped motor mount, and optimized thermal management support uninterrupted 24/7 duty cycles under ambient temperatures up to 40 °C—making it suitable for integration into ISO 17025-accredited testing environments where traceability and operational consistency are critical.

Key Features

• Oil-free reciprocating piston design ensures zero hydrocarbon emission and eliminates need for oil changes, filter replacements, or condensate handling—reducing total cost of ownership and supporting cleanroom-compatible workflows.
• Integrated vacuum regulation valve enables precise manual control of inlet pressure between atmospheric and <80 mbar, facilitating gentle sample handling during degassing or solvent removal.
• Dual-scale analog vacuum/pressure gauge (0–1000 mbar range) provides real-time visual feedback; compatible with optional digital transducers for data logging via 0–10 V or 4–20 mA output interfaces.
• Low-noise operation (<52 dB[A] at 1 m) achieved through acoustic enclosure design, elastomeric motor isolation, and optimized airflow path—ideal for benchtop use in shared laboratory spaces.
• Modular construction with standardized M4/M5 fasteners allows rapid field servicing of piston assembly, valves, and exhaust silencer without specialized tools.
• CE-marked per EN 61000-6-3 (EMC) and EN 61000-6-2 (immunity); compliant with RoHS 2015/863/EU and REACH SVHC regulations.

Sample Compatibility & Compliance

The 2567C-50 is designed for non-corrosive, non-condensable, and particle-free gas streams. It is not intended for pumping solvents, acidic vapors, halogenated compounds, or abrasive particulates. When used with an inline cold trap or particulate filter (e.g., sintered stainless steel or PTFE membrane), it meets the mechanical vacuum requirements for ASTM D2879 (vapor pressure of liquids), ISO 21620-1 (vacuum integrity testing), and USP (lyophilization process validation). Its oil-free operation supports GLP-compliant documentation protocols, and its stable base pressure repeatability (<±2 mbar over 8 h) satisfies internal QA criteria for method transfer validation.

Software & Data Management

While the 2567C-50 operates as a standalone analog device, its analog gauge output and optional pressure transducer interface enable seamless integration with third-party SCADA, LabVIEW, or DeltaV systems. When paired with a certified analog-to-digital converter (e.g., National Instruments USB-6009), vacuum profiles can be time-stamped, stored with audit trails, and exported in CSV or TDMS format—meeting FDA 21 CFR Part 11 requirements for electronic records when deployed within validated instrument networks. Firmware-upgradable digital controllers (sold separately) provide programmable ramp rates, hold times, and alarm thresholds for unattended operation.

Applications

• Primary vacuum source for benchtop freeze dryers (e.g., Christ Alpha 1–4 LDplus) and desiccators requiring stable sub-100 mbar conditions.
• Sample preparation for SEM/EDS analysis—degassing powders, polymers, and porous ceramics prior to coating.
• Vacuum-assisted filtration in environmental chemistry labs processing aqueous extracts (EPA Method 1664B).
• Gas purging of HPLC mobile phase reservoirs and headspace vials in pharmaceutical QC labs.
• Backing pump for turbomolecular or diffusion pumps in UHV pre-vacuum stages (when staged with appropriate foreline traps).

FAQ

Is the 2567C-50 suitable for continuous operation?
Yes—it is rated for indefinite continuous duty under ambient temperatures ≤40 °C and relative humidity ≤80% non-condensing, provided adequate ventilation around the exhaust port is maintained.
Can this pump handle solvent vapors?
No. The pump is not chemically resistant to organic solvents, acids, or reactive gases. A cold trap or chemical scrubber must be installed upstream if condensable vapors are present.
What maintenance intervals are recommended?
No scheduled maintenance is required beyond periodic inspection of the inlet filter (every 500 operating hours) and verification of seal integrity during annual calibration checks.
Does the pump include a vacuum gauge?
Yes—a dual-scale analog gauge (0–1000 mbar) is factory-mounted on the front panel, displaying both vacuum and positive pressure ranges.
Is the 2567C-50 compatible with vacuum controllers from other manufacturers?
Yes—its 7 mm exhaust port and standard G1/8″ inlet thread allow connection to common vacuum manifolds; analog gauge output signals can be interfaced with most commercial vacuum controllers via voltage scaling.