SED-500DQF-F — Nitrogen Generator
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SED-500DQF-F Nitrogen Generator. Compact, lightweight bench-top high-purity nitrogen generator for laboratory gas chromatography use. Replaces traditional N₂ gas cylinders. Output 0–500 ml/min at 0.4 MPa, purity 99.996%,
Funktionsweise
Uses single-liquid-surface single-cathode catalytic electrolysis with KOH solution as electrolyte and clean air as feed gas. Clean air enters the cathode side of the electrolytic cell through a high-precision pressure regulator. Oxygen diffuses across the membrane and is electrochemically separated to the anode side, then vented from a liquid trap. Nitrogen on the cathode side passes through a catalytic bed that removes residual oxygen, then through an adsorption filter that removes trace impurities and moisture, exiting at the gas outlet. A program controller continuously matches output flow to the GC demand for fully automatic constant-pressure / constant-flow operation.