CoMetro CP Series High-Pressure, Temperature-Controlled Constant Flow Pump

Overview

The CoMetro CP Series High-Pressure, Temperature-Controlled Constant Flow Pump is an engineered solution for applications demanding simultaneous pressure stability, flow precision, and thermal control of liquid delivery under elevated system backpressure. Designed around a dual-critical architecture—combining high-fidelity positive displacement pumping with active thermal management—the CP Series operates on a precision reciprocating plunger principle, delivering consistent volumetric flow independent of downstream resistance up to 42 MPa (6000 psi). Its integrated temperature-controlled fluid path ensures minimal thermal drift across the entire liquid handling train—from inlet to pump head to outlet—enabling reproducible delivery of thermally sensitive reagents, viscous solvents, or reactive precursors in catalytic synthesis, supercritical fluid processing, and high-pressure reaction monitoring. Unlike conventional constant-flow pumps lacking thermal regulation, the CP Series maintains isothermal conditions at the point of delivery, mitigating viscosity-induced flow variation and phase separation risks common in exothermic or endothermic reactions.

Key Features

• Precision plunger-driven mechanism with low-pulse design, incorporating passive damping and optimized check valve dynamics to achieve ≤0.2% RSD flow repeatability across the full operating range (0.001–50 mL/min)
• Integrated PID-controlled heating system with real-time thermal feedback, maintaining ±0.5°C stability across the 316L stainless steel fluid path (ambient +10°C to +120°C)
• Robust pressure containment architecture rated to 42 MPa (6000 psi), validated per ASME B31.3 process piping standards for high-integrity chemical service
• Dual-control interface: local keypad operation with intuitive parameter navigation and remote digital command via RS232 serial protocol for integration into automated reactor control systems
• Modular fluidic design featuring replaceable sapphire-tipped check valves, chemically resistant seals (FFKM/Viton), and optional self-cleaning bypass loop for extended maintenance intervals
• Comprehensive safety subsystems including over-pressure cut-off, thermal runaway detection, and flow deviation alarm triggers compliant with IEC 61508 functional safety guidelines

Sample Compatibility & Compliance

The CP Series accommodates a broad spectrum of process fluids—including aggressive organic solvents (e.g., THF, DMF, chlorinated hydrocarbons), aqueous electrolytes, and biocompatible buffers—without degradation of flow integrity or thermal performance. All wetted components are constructed from ASTM A276 Grade 316L stainless steel, certified to NACE MR0175/ISO 15156 for sour service compatibility where applicable. The pump meets CE marking requirements under the Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. For regulated environments, firmware supports audit-trail logging (timestamped parameter changes, error events) aligned with FDA 21 CFR Part 11 data integrity expectations when paired with validated host software.

Software & Data Management

The CP Series supports bidirectional communication via RS232, enabling seamless integration with LabVIEW, MATLAB, or custom SCADA platforms for synchronized pump control within multi-instrument workflows. Firmware includes programmable ramp profiles (flow rate, temperature), event-triggered sequencing (e.g., initiate heating upon flow start), and configurable alarm thresholds. Data output includes real-time flow rate, actual temperature at three internal sensor points (inlet, pump head, outlet), pressure status, and motor load diagnostics. Export formats include CSV and ASCII-delimited streams compatible with LIMS and ELN systems. Optional firmware upgrade enables time-stamped GLP-compliant logging with user authentication and electronic signature support.

Applications

• High-pressure catalytic hydrogenation and oxidation reactors requiring stoichiometric reagent dosing at elevated temperatures
• Supercritical fluid chromatography (SFC) mobile phase delivery where CO₂ co-solvent mixtures demand precise thermal and flow control
• In-line reaction calorimetry setups requiring stable, pulse-free solvent feed under variable backpressure
• Microreactor and flow chemistry platforms integrating with real-time analytics (FTIR, UV-Vis, Raman)
• Accelerated stability testing of pharmaceutical formulations under controlled thermal stress conditions
• Teaching laboratories demonstrating mass transport phenomena, Arrhenius kinetics, and pump hydraulics principles under industrially relevant parameters

FAQ

What is the maximum allowable fluid temperature at the pump head?
The fluid path is rated for continuous operation up to +120°C above ambient temperature, with thermal derating applied above 100°C for long-term seal integrity.
Can the CP Series be used with corrosive halogenated solvents?
Yes—316L stainless steel wetted surfaces and FFKM elastomer seals provide compatibility with chlorinated and fluorinated solvents per ASTM D471 testing protocols.
Is remote start/stop and parameter adjustment supported without physical access?
Yes—full operational control (flow setpoint, temperature setpoint, ramp rates, hold times) is available via RS232 commands using standard ASCII protocol documentation provided with the unit.
How is temperature uniformity verified across the fluid path?
Three calibrated PT100 sensors—located at inlet, pump head junction, and outlet—are independently monitored; deviation exceeding ±0.8°C triggers automatic thermal recalibration.
Does the pump meet requirements for GMP manufacturing environments?
When operated with validated software and documented change control procedures, the CP Series satisfies core elements of EU Annex 11 and FDA guidance on computerized system validation for ancillary equipment in API synthesis.