Elite P2000+ High-Pressure Preparative Constant Flow Pump

Overview

The Elite P2000+ High-Pressure Preparative Constant Flow Pump is an engineered solution for high-throughput liquid delivery in preparative chromatography systems—designed specifically to meet the demanding requirements of laboratory-scale purification, natural product isolation, pharmaceutical intermediate synthesis, and pilot-scale process development. Based on reciprocating tri-plunger pump architecture driven by a brushless AC servo motor, the P2000+ delivers precise, pulse-dampened flow across its full operational range (1–2000 mL/min) under pressures up to 20 MPa. Its hydraulic design incorporates optimized cam profile geometry and floating plunger guidance to minimize mechanical wear, reduce pulsation amplitude (<1.5% RSD at 1000 mL/min), and ensure long-term volumetric reproducibility. Unlike standard analytical HPLC pumps, the P2000+ integrates real-time flow compensation (±15% adjustment), dual-stage pressure protection (digital + mechanical), and solvent purge capability—making it suitable for gradient elution, column regeneration, and multi-solvent system flushing without manual intervention.

Key Features

• Tri-plunger pump head with precision-machined cam drive and low-inertia servo motor for enhanced flow linearity and extended service life
• Floating plunger assembly with imported ceramic-coated plungers and fluoropolymer seals for chemical resistance and minimal leakage
• Integrated real-time flow compensation algorithm, enabling dynamic correction against viscosity- or backpressure-induced deviations
• Dual-pressure safety architecture: programmable electronic over-pressure cutoff plus redundant mechanical relief valve (set at 20 MPa)
• RS-485 serial interface compliant with Modbus RTU protocol for seamless integration into centralized control systems and third-party chromatography data systems (CDS)
• Large-volume solvent purge mode supporting rapid mobile phase replacement and system equilibration between runs
• Front-panel LCD with simultaneous digital display of actual pressure, set/actual flow rate, and operational status indicators

Sample Compatibility & Compliance

The P2000+ is compatible with common organic solvents (acetonitrile, methanol, THF, dichloromethane), aqueous buffers (pH 1–12), and mildly corrosive reagents when used with optional chemically resistant wetted materials (e.g., Hastelloy C-276 plunger seals, sapphire check valves). It conforms to IEC 61010-1:2010 for electrical safety in laboratory equipment and meets electromagnetic compatibility (EMC) requirements per EN 61326-1:2013. While not certified for GMP manufacturing environments out-of-the-box, its full parameter logging, audit-trail-capable firmware (via optional Elite ChromStation software), and deterministic flow behavior support qualification under USP , ASTM E2500, and ISO/IEC 17025 method validation frameworks.

Software & Data Management

When paired with Elite ChromStation v3.x or higher, the P2000+ supports bidirectional communication for remote parameter setting, real-time telemetry streaming (flow, pressure, temperature), and event-triggered data capture—including pressure spikes, flow deviation alarms, and maintenance cycle counters. All operational logs are timestamped and stored locally in CSV format; optional encrypted SD card module enables secure archiving compliant with FDA 21 CFR Part 11 requirements (electronic signatures, audit trail, user access controls). Firmware updates are delivered via USB or RS-485, with version rollback capability and checksum verification to ensure integrity.

Applications

• Preparative reversed-phase and normal-phase chromatography for compound purification (mg-to-gram scale)
• Flash chromatography system upgrades requiring stable high-flow operation at elevated backpressures
• Process analytical technology (PAT) workflows integrating inline UV/Vis or conductivity detection
• Automated fraction collection triggered by pressure or flow anomalies during column overload conditions
• Method transfer from analytical to preparative scale using scalable flow-rate and gradient time normalization
• Continuous solvent recycling loops in green chemistry applications where consistent flow-driven mass balance is critical

FAQ

What is the maximum recommended operating pressure at 1500 mL/min?
At flow rates above 1000 mL/min, the P2000+ is rated for continuous operation up to 10 MPa; operation beyond this requires derating per manufacturer’s thermal management guidelines.
Can the P2000+ be integrated with third-party chromatography software such as Chromeleon or Empower?
Yes—via RS-485 Modbus RTU interface using Elite’s open protocol documentation; driver packages are available for select versions of Chromeleon (v7.3+) and Empower (v3 SP2+).
Is flow accuracy verified at all points within the 1–2000 mL/min range?
Calibration is performed at three representative points (10, 500, and 1500 mL/min) per ISO 5725-2; users may perform additional point verification using gravimetric or timed-volume methods per ASTM D3244.
Does the pump support gradient mixing when used with external proportioning valves?
No—the P2000+ is a single-channel constant-flow device; gradient formation must be achieved upstream using a low-dead-volume mixing tee or externally controlled multi-solvent selection valve.
What maintenance intervals are recommended for routine operation?
Plunger seal replacement every 6 months under continuous use; check valve inspection every 3 months; cam lubrication and belt tension verification annually—or after 2000 hours of cumulative runtime.