Nexis® T Series Filter Cartridges product photo Primary L

Nexis® T Series Filter Cartridges

Nexis T filter cartridges are extremely robust melt blown depth filters that are ideal for use in rigorous clarification and particle reduction applications.

Nexis T filter cartridges feature continuous graded, fixed pores which provide pre- and fine filtration within the same cartridge.

Their unique feature is Pall's proprietary CoLDSM (Co-Located Large Diameter) fiber media technology, which ensures efficient use of the entire gradient depth of the filter, resulting in high fluid transport and high dirt holding capacity.

The CoLD Melt™ process produces a mixture of micro-thin fibers intermingled and thermally bonded with large diameter CoLD fibers to provide an integral support and fluid transport network. The large internal void volume created by the CoLD process enables the capture of more contaminant than conventional cartridges, while the rigid support fibers hold the filtration fibers firmly in place.

The result is less potential for contaminant unloading and more efficient filtration under a variety of operating conditions.



 
Features Benefits
High structural integrity with fixed fiber matrix
  • Consistent filtrate quality
  • Highly stable structure, resistance to contaminant unloading even at high differential pressures
  • High performance filtration under a variety of operating conditions
Micro-thin fibers with continuous graded fixed pore structure provide pre- and fine filtration in the same cartridge
  • High void volume for high dirt holding capacity and long service life
  • Economical cost per filtered volume
  • Lower disposal costs
Proprietary high strength center core for 3-10 micron grades, economical high strength extruded core for more open grades
  • Reliable even under high differential pressure conditions
All polypropylene construction without adhesives, binders, resins or silicone
  • Broad chemical compatibility, suitable for use in a variety of fluids
 


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Description

Nexis T filter cartridges are extremely robust melt blown depth filters that are ideal for use in rigorous clarification and particle reduction applications.

Nexis T filter cartridges feature continuous graded, fixed pores which provide pre- and fine filtration within the same cartridge.

Their unique feature is Pall's proprietary CoLDSM (Co-Located Large Diameter) fiber media technology, which ensures efficient use of the entire gradient depth of the filter, resulting in high fluid transport and high dirt holding capacity.

The CoLD Melt™ process produces a mixture of micro-thin fibers intermingled and thermally bonded with large diameter CoLD fibers to provide an integral support and fluid transport network. The large internal void volume created by the CoLD process enables the capture of more contaminant than conventional cartridges, while the rigid support fibers hold the filtration fibers firmly in place.

The result is less potential for contaminant unloading and more efficient filtration under a variety of operating conditions.



 
Features Benefits
High structural integrity with fixed fiber matrix
  • Consistent filtrate quality
  • Highly stable structure, resistance to contaminant unloading even at high differential pressures
  • High performance filtration under a variety of operating conditions
Micro-thin fibers with continuous graded fixed pore structure provide pre- and fine filtration in the same cartridge
  • High void volume for high dirt holding capacity and long service life
  • Economical cost per filtered volume
  • Lower disposal costs
Proprietary high strength center core for 3-10 micron grades, economical high strength extruded core for more open grades
  • Reliable even under high differential pressure conditions
All polypropylene construction without adhesives, binders, resins or silicone
  • Broad chemical compatibility, suitable for use in a variety of fluids
 
Specifications

Material of Construction

 
Component Description
Filter Medium Polypropylene
Hardware Polypropylene
SOE Style Cartridges only  
Adaptor Polypropylene
O-Ring Seal Silicone Elastomer
Ethylene Propylene Rubber
 

Quality

  • Cartridges produced in a controlled environment/li>
  • Manufactured within a Quality Management System certified to ISO 9001:2008

Food Contact Compliance

Please refer to the Pall website for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use.

Operating Characteristics in Compatible Fluids1

 
Micron Rating Maximum Differential Pressure2 Operating Temperature
3-10 micron 1.03 bard (15 psid) 82 °C (180 °F)
1.72 bard (25 psid) 66 °C (150 °F)
4.14 bard (60 psid) 30 °C (86 °F)
20-200 micron 1.72 bard (25 psid) 60 °C (140 °F)
3.45 bard (50 psid) Ambient
 
1Fluids which do not swell, soften or adversely affect any of the filter components
2Recommended change-out differential pressure is 2.4 bard (35 psid), provided the maximum

Sterilization and Sanitization

  • Single open end (SOE) cartridges may be autoclaved for 30 minutes at 121 °C (250 °F) under no end load conditions. Cartridges should be cooled to system operating temperatures prior to use.
  • In situ steam sterilization is not recommended.
Performance

Flow Rates3






3Typical initial clean delta p per 254 mm (10 inch) cartridge, water at 20 °C (68 °F). For liquids with viscosity greater than 1 cP, multiply the delta p by the viscosity.

Figure 1: Cutaway view of a Nexis filter, illustrating unique, proprietary CoLD Melt fiber technology for highly efficient contaminant removal, longer service life, and improved strength


Type
Cartridges and Elements
Use
Filtration, Prefiltration
Ordering Information

This information is a guide to the part numbering structure and possible options. For availability of specific options please contact Pall. Refer to Pall for housing details.

Part Number: NXT [Table 1] [Table 2] U [Table 3] W [Table 4] 480

Example Part Number: NXT320UM7WS480

See bold reference codes in tables.

Table 1: Removal Rating4

 
Code Description
3 3 μm
5 5 μm
10 10 μm
20 20 μm
30 30 μm
40 40 μm
50 50 μm
75 75 μm
100 100 μm
150 150 μm
200 200 μm
 
4 Nexis T filters provide a removal efficiency of 90% at the stated rating in compatible fluids. Particulate removal rating is determined by a single pass test based on ASTM F-795.

Table 2: Length

 
Code Description
DOE Style only:  
4 102 mm (4")
5 127 mm (5")
975 248 mm (9.75")
9875 251 mm (9.875")
10 254 mm (10")
195 495 mm (19.5")
20 508 mm (20")
2925 743 mm (29.25")
295 749 mm (29.5")
30 762 mm (30")
39 991 mm (39")
395 1003 mm (39.5")
40 1016 mm (40")
SOE Style only:  
10 254 mm (10")
20 508 mm (20")
30 762 mm (30")
40 1016 mm (40")
 

Table 3: Adaptor

 
Code Description
blank DOE with no endcaps
M3 SOE - single open end with flat closed end and external 222 O-rings
M7 SOE - single open end with fin end, 2 locking tabs and external 226 O-rings
M8 SOE - single open end with fin end and external 222 O-rings
 

Table 4: O-ring Seal Material5

 
Code Description
S Silicone Elastomer
E Ethylene Propylene Rubber
 
5 For M3, M7 and M8 styles only
Application
Preclarification, Particle Filtration, Incoming Water Primary Filtration, Coarse Filtration, Trap Filtration, Pre RO filtration, Particulate Control, Water: Trap Filtration, RO Protection, Post Mixing Filtration, Trap Filter (Sugar Syrup), Incoming Water: Primary Filtration