NF series - Alfa Laval - #1

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. kySanitary Spiral Membranes for Nanofiltration ky NF series . The Alfa Laval nanofiltration membranes are durable membranes designed to reject organics with a molecular weight above 200 while partially passing monovalent salts. The elements are based on a composite polyamide type membrane. The sanitary, full-fit configuration is optimal for cleaning and minimizes “stagnant spaces”. All spiral elements are shipped dry. Designation Process Characteristics MgSO4 rejection Alfa Laval NF97 NF 97%* Alfa Laval NF99 NF 98%* Alfa Laval NF99 HF NF Polyamide type thin film composite on polyester 98%* * Measured on 2000 ppm MgSO4, 9 bar, pH 8, 25°C (131 psi, 77°F), 15% recovery. Spiral membrane designation: Alfa Laval NF97-3838/30 Alfa Laval NF97 = Membrane type 38 = Outer diameter of element (3.8") 38 = Element length (38") 30 = Feed spacer thickness All components comply with EU Commission Directive 2002/72/EC and FDA regulations (CFR), Title 21. L1 L2 ID OD TD 710-001 .... Dimensions OD = outer diameter of element L1 = total length of element without ATD ID = diameter of ATD socket L2 = depth of ATD socket OD L 1 ID L 2 Element size mm (inches) mm (inches) mm (inches) mm (inches) 2517 64.0-65.0 (2.52-2.56) 432 (17) 21.00 (0.827) 26.0 (1.024) 3838 95.0-96.5 (3.74-3.80) 965 (38) 21.10 (0.831) 51.0 (2.0) 3840 95.0-96.5 (3.74-3.80) 984 (38.75) 21.10 (0.831) 51.0 (2.0) 8038 198.5-201.5 (7.81-7.93) 965 (38) 28.58 (1.125) 51.0 (2.0) * Overall length with two ATD’s: 1016 mm (ATD: 25.4 mm)