Dosing Pump Selection Guide

Význam tématu

High-pressure dosing pumps and their associated components play a crucial role in modern analytical chemistry, enabling precise, reproducible delivery of aqueous and organic solvents, aggressive media or liquid gases across research, pharmaceutical and industrial workflows. Reliable control of flow rate, pressure, temperature and chemical compatibility ensures high data quality, process consistency and regulatory compliance in applications ranging from HPLC method development to continuous flow synthesis.

Cíle a přehled studie / článku

This selection guide reviews KNAUER’s high-pressure dosing solutions for 2022/2023, spanning pump models, detectors, flow meters, valves, accessories and software. It aims to help analysts and engineers identify optimal configurations by comparing performance specifications, material compatibility and control interfaces.

Použitá metodika a instrumentace

All products are based on dual-piston or Coriolis measuring principles, with modular heads and smart electronics. Major instrument categories include:

• High-pressure dosing pumps (BlueShadow Pump 40P/80P, AZURA® Pump P 2.1S/P 4.1S) with flow ranges from 0.01 to 1000 ml/min and pressures up to 650 bar.
• Mini CORI-Flow mass flow controllers for direct mass-based control with ±0.2 % accuracy.
• UV/VIS detectors (BlueShadow Detector 40D single-wavelength, 50D multi-wavelength) covering 190–750 nm with low noise and drift.
• AZURA® Valve Drive VU 4.1 and a comprehensive line-up of 2- to 16-port valves with RFID recognition for automated fluid routing.
• Accessories for temperature control (pump head heaters/coolers, column ovens), mixing (static and dynamic mixers), pulse damping and solvent filtration.
• Mobile Control Chrom software for touch-optimized remote operation, program setup and data acquisition.

Hlavní výsledky a diskuse

Key findings from the guide show that modular pump head design permits easy adaptation to new solvents or temperature ranges. Active pulsation compensation delivers smooth, pulse-free flow even at sub-ml/min rates. Chemical resistance is achieved via stainless steel, Hastelloy®, titanium and ceramic wetted materials. Digital and analog interfaces (LAN, RS-232, 0–10 V) facilitate integration into laboratory automation or process control systems.

Přínosy a praktické využití metody

The described metering platforms support:

• High-precision reagent dosing in flow chemistry or continuous synthesis.
• Gradient formation and mixing for HPLC separations or simulated moving-bed processes.
• Biocompatible buffer delivery in preparative or protein chromatography.
• Accurate batch dosing of additives and tracer gases, with inline monitoring via Coriolis meters.
• Regulated-environment compatibility through detailed material certificates (EN 10204-2.1) and factory/site acceptance testing.

Budoucí trendy a možnosti využití

Future developments will focus on deeper integration of mass flow feedback for closed-loop metering, expanded remote control via cloud-based platforms, enhanced sustainability through reduced solvent consumption and recyclable packaging, and AI-driven predictive maintenance. Emerging high-temperature and low-volume microfluidic applications will drive further miniaturization and novel pump head materials.

Závěr

KNAUER’s 2022/2023 selection guide presents a flexible, high-performance portfolio of dosing pumps and peripheral components tailored for demanding analytical and process applications. The modular design, wide chemical and temperature compatibility, and versatile control interfaces enable seamless adoption in R&D, QA/QC and production environments.