Flow through electrode holder

AP-FTH-01-001

485.00 €

Versatile Inline Holder for Electrochemical Sensors

Achieve precise, real-time electrochemical measurements directly in your flow system. This chemically resistant holder is designed for a wide range of rod-type electrodes, enabling accurate monitoring of pH, ORP, conductivity, and reference potential in demanding research environments.

HIGHLIGHTS:

Universal design compatible with electrodes from 3 mm to 17 mm in diameter
Enables accurate reference potential measurements via Luggin capillary type connection
Chemically resistant polypropylene body for use with diverse electrolytes
Complete kit with all necessary tubing, fittings, and assembly components

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About the product

Unlocking Precision in Flow-Based Electrochemical Analysis

The Flow-Through Electrode Holder is an essential tool for researchers and engineers requiring accurate, real-time monitoring of electrochemical parameters within a flowing medium. Its robust and versatile design allows for the seamless integration of various rod-type electrodes, including pH, ORP, conductivity, and reference electrodes directly into your experimental setup. Whether you are working with flow batteries, electrolysis cells, desalination systems, or water treatment applications, this holder provides a reliable and chemically resistant interface for critical process measurements.

Key Features for Advanced Research

Universal Electrode Compatibility. The holder is available in four distinct versions, accommodating a continuous range of electrode diameters from 3 mm to 17 mm. This modularity ensures that you can use your preferred standard or specialized electrodes without needing custom solutions. Each version is optimized for its specific electrode size range, ensuring secure retention and reliable contact.

Accurate Reference Potential Measurements. The holder is engineered to facilitate Luggin capillary type measurements, allowing the reference electrode to be placed outside the main electrochemical cell. This setup minimizes contamination and thermal stress on the reference electrode, leading to more stable and accurate potential readings—especially critical in high-temperature or aggressive chemical environments. When integrated with the X-Cell with ports for reference electrodes, it enables sophisticated multi-point reference measurements within a single cell, providing unparalleled insight into your electrochemical system.

Superior Chemical Resistance. Constructed from high-quality polypropylene (PP), the holder body offers excellent resistance to a wide range of acids, bases, and organic solvents. This ensures long-term durability and minimal sample contamination, making it suitable for diverse electrolyte systems and harsh operating conditions. All wetted components are carefully selected for chemical compatibility, with O-rings available in both EPDM and VITON to match your specific application requirements.

Complete and Ready-to-Use Kit. Each holder comes as a comprehensive package. The kit includes 2 meters of 1/8″ OD PTFE tubing, IDEX-style fittings for standard laboratory connections, a syringe for establishing galvanic connections, hose clamps, flexible tubing for syringe integration, and all necessary hardware.

Broad Application Range

The Flow-Through Electrode Holder is more than a simple accessory, opening a wide array of applications across multiple research and industrial fields.

Electrochemistry Research & Development. The holder is ideal for monitoring electrolyte composition, pH gradients, and reference potentials in real-time during electrolysis, CO₂ reduction, and flow battery cycling experiments. Its compatibility with standard electrodes makes it an invaluable tool for fundamental studies of electrode kinetics, mass transport phenomena, and long-term cycling stability.

Water Quality and Environmental Monitoring. Enables continuous inline monitoring of pH, conductivity, and ORP in water treatment processes, desalination systems, and environmental remediation studies. The robust construction and chemical resistance make it suitable for challenging field conditions and diverse water chemistries.

Bipolar Membrane Electrodialysis (BMED). Perfectly suited for multi-compartment BMED setups, the holder allows for precise monitoring of pH changes in acid and base generation streams, membrane performance, and ion transport across multiple chambers. This capability is essential for optimizing BMED processes and understanding compartment-specific electrochemistry.

Process Control and Automation. Provides a robust solution for integrating electrochemical sensors into pilot-scale and industrial processes for real-time feedback and automated control. The standardized IDEX connections facilitate easy integration with existing flow systems, pumps, and control instrumentation.

Seamless Integration with Your System

Designed to work flawlessly with the Redox-Flow ecosystem, the Flow-Through Electrode Holder is the perfect companion for our X-Cell with ports for reference electrodes. This combination allows for sophisticated, multi-point reference measurements within a single cell, providing unparalleled insight into your electrochemical system. The standard 1/8″ tubing connections ensure easy integration with most laboratory and pilot-scale flow systems, while the flexible design accommodates both flow-through and dead-end (Luggin capillary) measurement modes.

Specification	Details
Body Material	Polypropylene (PP) – chemically resistant
Fittings	IDEX-type for 1/8″ OD tubing
Electrode Diameter Versions	Four options available: 3–7 mm outer diameter 7–10 mm outer diameter 10–13 mm outer diameter 13–17 mm outer diameter
O-Ring Materials	EPDM and VITON (both included in package)
Compression Ring Material	Polypropylene (PP)
Hardware	Stainless steel bolts and washers
Measurement Modes	Flow-through or dead-end (Luggin capillary type)
Compatible Electrodes	pH electrodes, ORP electrodes, reference electrodes, conductivity electrodes, and other standard rod-type electrodes
Tubing Included	2 meters of 1/8″ OD PTFE tubing
Additional Components	1 syringe, 2 hose clamps, flexible tubing for syringe connection, compression rings, support rings, and O-rings
Temperature Range	Suitable for operation at elevated temperatures (up to 90 °C) without damaging the reference electrode
Pressure Rating	Designed for low-pressure flow applications typical of laboratory and pilot-scale systems

Assembly Manual v3.0 – Comprehensive step-by-step assembly instructions with detailed component diagrams and specifications for all four electrode diameter versions.

Support & Inquiry

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Flow through electrode holder

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Always include as much information as you can about your project, what type of chemistry you are planning to use, what is the purpose of the equipment you are interested in. That will make it much easier for us to guide you towards the best solution for your project.