Nitrogen Generator (Membrane) · Inert Gas Systems
Parker Hannifin Marine N2 Membrane N2-200 97% — 2200 m³/h capacity.
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| Pre-filter/coalescing filter elements | typically every 4,000-8,000 running hours or on differential pressure alarm, whichever comes first - confirm against the maker's manual |
|---|---|
| O2 analyzer sensor | replace every 6-12 months, sensor is a consumable |
| Feed air compressor service | per the compressor manufacturer's own schedule |
| Condensate drain/trap check | monthly running check |
| Filter differential pressure | replace the element as it approaches the manufacturer's stated alarm/trip value - the exact figure depends on filter grade, check the filter's own dataplate |
|---|---|
| Product gas O2 content | should track within the stated spec (approx. 3% O2 for 97% N2) at rated flow - persistent drift beyond spec points to membrane or filter degradation |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Where the N2 generator feeds a classed inert gas or tank atmosphere control system, class checks O2 analyzer calibration records, filter maintenance log, and a functional demonstration at Continuous Machinery Survey / IGS annual survey; keep purity and flow trend logs available for the surveyor.
Estimated lifetime: Membrane bundle life is typically several years of continuous service under clean, dry, oil-free feed air (often quoted in the 5-10 year range by membrane makers), but is highly sensitive to feed air quality - confirm against Parker's own membrane life data.
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