CoMetro CP Series High-Pressure Heated Metering Pump

Overview

The CoMetro CP Series High-Pressure Heated Metering Pump is an engineered solution for precise, temperature-stable liquid delivery under elevated pressure conditions—designed specifically for applications demanding simultaneous control of flow rate, temperature, and backpressure. Based on positive displacement piston pump architecture with dual-stage thermal management, the CP Series operates on the principle of volumetric displacement driven by a precision stepper or servo motor, coupled with real-time closed-loop pressure and temperature feedback. Its core function is to deliver reproducible, pulse-dampened fluid streams across chemically aggressive and thermally sensitive environments—including organic solvent-based reaction systems, high-temperature catalytic synthesis, and temperature-dependent chromatographic elution protocols. Unlike standard syringe or peristaltic pumps, the CP Series integrates active heating of the entire fluid path—from inlet manifold through pump head to outlet—ensuring minimal thermal gradient-induced viscosity drift and eliminating cold-spot condensation or solvent crystallization in critical zones.

Key Features

• High-pressure capability up to 42 MPa (6000 psi), validated per ISO 25316 and ASME B31.3 process equipment guidelines
• Integrated PID-controlled heating system maintaining ±0.5 °C stability across the full fluid path (inlet, pump chamber, outlet)
• Dual-mode operation: local keypad control with LCD interface or remote command via RS232 serial protocol and analog voltage/frequency inputs
• Modular pump head design with 316L stainless steel wetted parts, compatible with acetonitrile, THF, DMF, chlorinated solvents, and aqueous buffers
• Active pulsation damping and quick-fill priming algorithm reduce start-up time and improve transient response during flow ramping
• Onboard bypass valve and optional self-cleaning cycle support GLP-compliant maintenance routines and prevent cross-contamination between runs

Sample Compatibility & Compliance

The CP Series accommodates a broad range of sample matrices including viscous polymer solutions (up to 5000 mPa·s at 25 °C), volatile organic reagents, and biocompatible aqueous formulations. Its 316L stainless steel fluidic pathway meets ASTM F899 standards for corrosion resistance and USP Class VI biocompatibility requirements when used with appropriate seals (e.g., PTFE, Kalrez®). The system supports audit-ready operation under GMP/GLP frameworks: firmware logs all parameter changes with timestamps, and optional electronic signature modules comply with FDA 21 CFR Part 11 data integrity requirements. All electrical components conform to IEC 61010-1 safety standards for laboratory equipment.

Software & Data Management

The CP Series supports both standalone operation and integration into automated lab platforms. Native communication drivers enable seamless connection to LabVIEW, MATLAB, and Python-based control environments via RS232 or TTL-level analog I/O. Logged operational data—including actual flow rate, measured pressure, set vs. actual temperature, and motor step count—is timestamped and exportable in CSV format. Firmware version 2.3+ includes configurable alarm thresholds (e.g., overpressure, overtemperature, flow deviation >3% RSD over 30 s), with relay outputs for interlock signaling to external reactors or safety shutoff valves. Audit trails record user ID, parameter modifications, and error events—retained for ≥90 days without external storage.

Applications

• High-temperature/pressure homogeneous catalysis studies requiring stable reagent feed at 100–120 °C and >30 MPa
• Preparative supercritical fluid chromatography (SFC) mobile phase delivery with thermal stabilization upstream of the column
• In-line kinetic reaction monitoring systems where residence time and temperature must be tightly coupled
• Microreactor feeding in continuous-flow synthesis, especially for exothermic transformations needing pre-heated reactant streams
• Calibration traceability workflows in metrology labs performing gravimetric flow verification per ISO 4064-2
• Teaching laboratories demonstrating fluid mechanics principles under variable thermal and pressure boundary conditions

FAQ

What is the maximum allowable viscosity for reliable operation at full pressure?
The pump maintains rated accuracy up to 5000 mPa·s at 25 °C; above this, flow linearity degrades progressively—consult engineering documentation for derating curves.
Can the CP Series be integrated into a PLC-controlled reactor system?
Yes—via 0–10 VDC analog input for flow setpoint and 4–20 mA pressure feedback loop; digital handshake supported via Modbus RTU over RS232.
Is third-party calibration certification available?
Factory calibration is traceable to NIST standards; optional UKAS-accredited calibration reports are available upon request with lead time.
How is thermal uniformity verified across the fluid path?
Each unit undergoes thermal mapping validation using embedded PT100 sensors at three axial positions (inlet, pump head center, outlet) under steady-state conditions.
Does the system support gradient temperature programming during a single run?
No—temperature is held constant per run; multi-step thermal profiles require external sequencing via host software or programmable logic controller.