Sanotac WM0010 High-Precision Pulseless Constant Flow Pump

Overview

The Sanotac WM0010 High-Precision Pulseless Constant Flow Pump is an engineered solution for applications demanding stable, reproducible, and chemically inert fluid delivery under high pressure. Based on dual-piston in-series architecture with a floating piston mechanism, it operates on the principle of positive displacement with real-time solvent compressibility compensation and electronic pulse suppression. Unlike conventional reciprocating pumps, the WM0010 integrates cam-profile optimization and active flow pulsation damping to achieve pressure pulsation ≤ 0.1 MPa — critical for baseline stability in analytical systems such as HPLC, SFC, and preparative chromatography. Its all-titanium fluidic path (including pump head, check valves, and tubing interfaces), sapphire seals, and ceramic components ensure compatibility with aggressive solvents (e.g., concentrated acids, halogenated organics, and alkaline media), making it suitable for method development in regulated environments where material integrity directly impacts data reliability.

Key Features

• Ultra-low pulsation performance: ≤ 0.1 MPa pressure fluctuation across full operating range (0.001–9.999 mL/min), validated per ISO 11607-2 and ASTM D3924 test protocols for flow stability.
• Pure titanium wetted path: Pump head, inlet/outlet manifolds, and 1/16″ fittings constructed from Grade 2 titanium; resistant to pitting, stress corrosion cracking, and hydrogen embrittlement in chloride-rich or oxidizing environments.
• High metrological fidelity: Flow accuracy ±0.1% and repeatability ≤0.1% RSD (n=6, at 1 mL/min, methanol), traceable to NIST-traceable gravimetric calibration standards.
• Intelligent gradient generation: Supports isocratic, linear, and multi-step gradient profiles via internal firmware; programmable via 10 user-defined methods stored in non-volatile memory.
• Open communication architecture: RS-232 and USB interfaces implement ASCII-based command protocol — fully compatible with third-party chromatography data systems (CDS), including Empower, Chromeleon, and custom LabVIEW or Python-based control platforms.
• Robust mechanical design: Swiss-sourced sapphire ball check valves, hardened ceramic plungers, and cam-driven dual-piston train ensure >20,000 hours MTBF under continuous operation at 30 MPa.

Sample Compatibility & Compliance

The WM0010 accommodates aqueous, organic, and mixed-phase mobile phases—including TFA, HFIP, nitric acid (≤30%), and anhydrous HF—without degradation of sealing integrity or flow path corrosion. Its construction meets ISO 9001:2015 manufacturing requirements and supports GLP/GMP workflows through audit-trail-capable parameter logging (via optional software module). While not pre-certified for FDA 21 CFR Part 11, the pump’s deterministic control logic, non-volatile method storage, and timestamped event logging enable straightforward validation against ICH Q2(R2) and USP analytical instrument qualification guidelines.

Software & Data Management

The pump operates autonomously via its front-panel interface or integrates into networked laboratory environments via serial/USB. Firmware supports bidirectional command-response protocol with status feedback (pressure, flow, error codes, valve position). Raw operational logs—including flow setpoint vs. actual, pressure transients, and thermal drift compensation events—can be exported in CSV format. Optional Sanotac PumpControl Suite (v3.2+) provides method scheduling, real-time waveform visualization, and automated calibration curve generation compliant with ISO/IEC 17025 clause 6.4.2.

Applications

• HPLC and UHPLC method development requiring low-system-volume gradient precision and long-term retention time stability.
• Supercritical fluid chromatography (SFC) with CO₂/methanol mixtures at pressures up to 42 MPa.
• Chemical synthesis reactors requiring stoichiometric reagent dosing under inert atmosphere.
• Electrochemical flow cells where pressure-induced current noise must remain below 50 pA RMS.
• Calibration of mass flow controllers (MFCs) and microfluidic sensor arrays using gravimetric reference standards.
• Environmental analysis of PFAS compounds using acidic mobile phases incompatible with stainless-steel systems.

FAQ

Does the WM0010 support gradient mixing at the pump head?
No — it is a single-channel high-pressure pump. Gradient formation requires external low-pressure mixing modules or dual-pump systems.
Can the pump be operated in constant pressure mode?
No — it is a constant flow (volumetric displacement) device. Pressure is a dependent variable governed by system backpressure.
Is firmware upgrade supported in-field?
Yes — updates are delivered via USB stick using signed binary packages verified via SHA-256 checksum and embedded RSA-2048 signature.
What maintenance intervals are recommended for the titanium pump head?
Plunger seals require replacement every 12 months or after 5,000 operating hours, whichever occurs first, under typical lab conditions (25°C, ≤40 MPa, non-particulate solvents).
Is there documentation available for IQ/OQ/PQ protocol development?
Yes — Sanotac provides a complete Instrument Qualification Toolkit (IQTK v2.1), including test scripts, acceptance criteria aligned with ASTM E2500, and blank execution records for GxP-regulated sites.