N1 vs N2 vs N3 Footprint Comparison | Blue Membrane

N1 vs N2 vs N3 Footprint & Element-Count Comparison

See how many elements, vessels, and how much membrane area each N-series model needs for your target flow.

Required System Permeate Flow

Flow Unit

Elements per Pressure Vessel

Model Comparison at Target Flow

Model	Min Rejection	Elements Needed	Vessels Needed	Total Area	vs N1 Elements

Rejection and flow rates measured per Blue Membrane standard test protocol: 2,000 ppm MgSO₄ feed, 100 psi (0.69 MPa), 25°C, pH 7–8, 15% recovery. All three models share the same 8040 footprint (8″ diameter x 40″ length, industry-standard FilmTec NF90/NF270-compatible dimension) — the difference is rejection vs. flow per element, not element size. Contact Blue Membrane engineering for a feed-specific system design.

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