See the reaction clearly
Make every process parameter traceable
FLOWTECH specializes in online analytical instruments and integrated system engineering. From reactor oxygen measurement and control and inline density or particle-size measurement to corrosion-resistant composite-material valves and precise dosing systems — what we deliver is not a single instrument, but a functional loop that can be accepted on site.
Three product lines covering the whole process-analysis chain
From measurement to actuation to integration — the complete chain of process analysis.
Online Analytical Instruments
See the process clearly — online measurement of oxygen, pH, density, particle size and dew point.
- Reactor oxygen content measurement and control system
- Inline density measurement and densitometer calibration
- Liquid online analysis (pH / dissolved oxygen / conductivity)
- Inline particle-size distribution analysis
Fluid Control
Valve and electrode solutions that resist corrosion, avoid metal contamination and meter small flows precisely.
- Composite-Material Valves (Non-Metallic, Corrosion-Resistant)
- Hamilton Process Electrodes (pH / DO / Conductivity)
- Low-flow control valves and precise ratio control
Integrated Systems
From a single instrument to complete delivery: design, integration, commissioning and service in one hand.
- Reactor Oxygen Measurement & Control System
- Gas blending control systems
- Precise liquid dosing systems
Across four industries, we solve the same kind of problem
Process parameters that cannot be seen, are measured too slowly or cannot be controlled — change the industry and the pain points look surprisingly similar.
Lithium battery precursor
Three main threads: reactor oxygen safety, inline solution concentration, and metal-foreign-matter control.
Lithium recovery from battery recycling
Instrument and valve life in fluoride-bearing strong acids, and stable measurement of solids-laden slurry.
Salt-lake lithium extraction
Corrosion in high-salinity brine, maintenance at remote sites, and inline judgment of the evaporation end point.
Phosphorus chemical industry
Impurity control from industrial grade to battery grade, and the online upgrade of iron phosphate lines.
The questions engineers ask us most
These answers come from the field, not from product manuals.
Which valve materials resist corrosion in the lithium battery industry?
For lithium precursor and lithium extraction service, composite-material valves (FRP/PP/PVDF etc.) should be preferred over stainless steel. The reason is not just corrosion resistance — the decisive factor is metal foreign-matter control. Read the full answer →
How should reactor oxygen content be measured?
For reactor inerting, optical fluorescence (quenching) is the recommended route: it is immune to solvent vapor and acidic background gases and needs little maintenance; electrochemical suits ppm-level trace oxygen, while paramagnetic and zirconia have their own boundaries. The technology route is only the starting point — sample conditioning decides long-term usability. Read the full answer →
What is the difference between non-metal and metal valves in lithium battery duty?
The difference is not only corrosion resistance — it is metal ion release, failure mode and lifecycle cost. In lithium battery duty the core value of a non-metal valve is physically cutting off the metal contamination path. Read the full answer →
What is the temperature limit of composite-material valves? In which duty can they not be used?
The temperature limit of a composite-material valve is jointly determined by material, pressure and medium — there is no single number. Reference ranges for common systems: PP approx. 90°C, PVDF approx. 140°C, with PTFE lining and FRP determined by the lining process and resin system. Read the full answer →
How often should a pH electrode be replaced? Which duty accelerates failure?
A pH electrode is a consumable — there is no fit-and-forget electrode. Field experience typically gives 6 to 18 months; the difference comes mainly from temperature, medium and daily maintenance, not from brand. Read the full answer →
