Nexis® T Series Filter Cartridges

Materials of construction

• Filter media: Polypropylene
• Hardware: Polypropylene
• Gaskets/O-rings: Silicone elastomer, EPDM, nitrile, fluor ocarbon elastomer, FEP, thermoplastic elastomer (DOE only), FEP encapsulated silicone elastomer, FEP encapsulated fluorocarbon elastomer

Dimensions (nominal)

• Outside diameter: 6.4 cm (2.5 in.)
• Lengths: 10.2 cm (4 in.), 12.7 cm (5 in.), 24.8 cm (9.75 in.), 25.1 cm (9.875 in.), 25.4 cm (10 in.), 49.5 cm (19.5 in.), 50.8 cm (20 in.), 74.3 cm (29.25 in.), 76.2 cm (30 in.), 99.1 cm (39 in.), 100.3 cm (39.5 in.), 102 cm (40 in.)

Pall's proprietary CoLD Melt fiber media technology is designed to assure efficient use of the entire gradient depth of the filter. The CoLD Melt process produces a mixture of micro-thin fibers intermingled and thermally bonded with large diameter CoLD Melt fibers to provide an integral support and fluid transport network. The large internal void area created by the CoLD Melt process enables Nexis T filter cartridges to capture more contaminant than conventional cartridges while the rigid support fibers hold the filtration fibers firmly in place. The result is less potential random unloading of contaminant and more efficient filtration under a variety of operating conditions.

Filter grades¹

0.5, 1, 3, 5, 7, 10, 15, 20, 25, 30, 40, 50, 75, 100, 120, 150, 200 µm

Maximum differential pressure

• 0.5-10 μm:
  • 1.03 bard @ 82 °C (15 psid @ 180 °F)
  • 1.72 bard @ 66 °C (25 psid @ 150 °F)
  • 4.14 bard @ 30 °C (60 psid @ 86 °F)
• 15-120 μm:
  • 1 .72 bard @ 60 °C (25 psid @ 140 °F)
  • 3.45 bard @ ambient (50 psid @ ambient)

Recommended change-out differential pressure²

2.4 bar d (35 psid)

Food and water contact use

Please contact Pall Corporation to verify that the product conforms to your national legislation and/or regional regulatory requirements for water and food contact use.

Rinse-up

Rinse-up to 18 Megohm-cm with a minimum of throughput.

Typical Flow vs. Differential Pressure for Application Sizing³

¹ >90% retention rating by ASTM F-795 test. Nexis T series filter cartridge retention ratings are based on Pall's Dynamic Efficiency test protocol. This single pass, destructive challenge test is based on ASTM F-795 test procedures for determining the performance of a filter medium. Fine test dust is used as the test contaminant for filters in the 0.5 to 20 micron range. Coarse test dust is used for micron ratings above 20 micron. Additional information can be obtained by contacting Pall Corporation.
² Provided that the maximum differential pressure is not exceeded based on temperature limits defined above.
³ Due to the very low flow resistance of the media in the more open grades, pressure drop is primarily related to turbulent loss through the center core. Flow rate is for a 25.4 cm (10 in.) cartridge. For liquids other than water, multiply differential pressure by fluid viscosity (cP).

Filter Cartridges

Pall Part Number = NXT [1] [2] U - [3] [4]

Table 1   Code Filter grades (μm) 0.5 0.5 1 1 3 3 5 5 7 7 10 10 15 15 20 20 25 25 30 30 40 40 50 50 75 75 100 100 120 120 150 150 200 200

Table 2   Code Cartridge lengths (cm/in.) nominal 4 10.2 / 4 5 12.7 / 5 9.75 24.8 / 9.75 9.875 25.1 / 9.875 10 25.4 / 10 19.5 49.5 / 19.5 20 50.8 / 20 29.25 74.3 / 29. 25 30 76.2 / 30 39 99.1 / 39 39.5 100.3 / 39.5 40 102 / 40

Table 3

Code	End configurations
Blank	DOE industrial (no end caps)
1X	DOE, 2.54 cm (1 in.) extended core
M3	SOE flat closed end, external 222 O-rings (retrofits other manufacturers’ Code 0)4
M3H	SOE large diameter closed end, external 222 O-rings
M4	SOE fin end, external 222 O-rings with locking tabs (silicone and EPDM O-rings only)
M5	DOE, internal 120 O-rings (retro fits 213 O-ring style)4
M6	SOE flat closed end, external 226 O-rings (retrofits other manufacturers’ Code 6)4
M7	SOE fin end, external 226 O-rings (retrofits other manufacturers’ Code 7)4
M8	SOE fin end, external 222 O-rings (retro fits other manufacturers’ Code 5)4
M10	DOE, internal O-rings (fits other manufacturers’ housings)4
M11	SOE flat closed end, internal 120 O-ring (retrofits other manufacturers’ X style)4
M18	SOE flat closed end, external 222 O-ring
M20	SOE with internal O-rings (same as M10), closed end with deep recess
DOE	DOE with elastomer gasket seals and end caps
H21	DOE, Santoprene gasket seal
XK	SOE plastic spring assembly, saw cut end
SI	SOE metal spring / polypropylene cap, saw cut end

Table 4

Code	Gasket/O-ring materials
S	Silicone
N	Nitrile
E	EPDM
V	Fluorocarbon elastomer
T	Expanded PTFE (gaskets) - DOE option FEP encapsulated silicone (O-rings) - SOE option
F	FEP encapsulated fluor ocarbon elastomer (O-rings)
Y	Santoprene

⁴ For details, contact Pall Corporation.

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