Nexis® A Series Filter Cartridges

Nexis A filter cartridges are ideal for use in rigorous food and beverage clarification processes.  Pall’s proprietary CoLD^™ (Co-Located Large Diameter) fiber technology gives the Nexis A filters internal support combined with high dirt holding capacity. 

The Nexis A filter cartridges provide a removal efficiency of  >99.9% with consistent filtration performance. Continuous graded and fixed pores provide pre-and fine filtration within the same cartridge resulting in lower overall filtration and disposal cost.

These cartridges are an ideal choice for food and beverage processes needing high-performance filtration at an economical price.

Products in this datasheet may be covered by one or more patents, including EP 830,191; US 5,591,335; US 5,653,833; US 5,681,469; US 5,690,782; US 5,730,820; US 5,733,581; US 5,741,395; US 5,783,011.

Food Contact Compliance

• Nexis A Filter Cartridge Declaration of Compliance

Media

• All polypropylene
• Continuous graded fixed pore structure
• Resists shedding 
• Does not employ adhesives or surfactants

Cartridge

• Center core for high mechanical strength
• Consistent performance
• High void volume for high dirt holding capacity
• Available in multiple configurations

Operating Characteristics in Compatible Fluids

Maximum Differential Pressure	Recommended Change out Differential Pressure	Operating Temperature
4.14 bard (60 psid)	2.4 bard (35 psid)	30 °C (86 °F)
1.72 bard (25 psid)	-	66 °C (150 °F)
1.03 bard (15 psid)	-	82 °C (180 °F)

Compatible fluids are defined as those which do not swell, soften or attack any of the filter components

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.
• Steam sterilization is not recommended.

Liquid Removal Rating (μm)

99.9% Efficiency	90% Efficiency
9.5	4.7

Nexis A 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. Fine test dust is used as the test contaminant. 

Flow Rates

For clean water at ambient temperature for liquids of viscosity other than 1cP multiply the ¢P by the viscosity in cP.

Quality

• Cartridges produced in a controlled environment 
• Manufactured according to ISO 9001:2008 certified

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

Example Part Number: NXA 10 40 U M3 W S (See bold references in tables below)

Part Number: NXA 10 < Length Code from Table 1 > U < Adaptor Code from Table 2> W < O-ring Seal Code from Table 3 >

Table 1 - Nominal Length

Code	Description
DOE Style Only
10	10 in. (254 mm)
20	20 in. (508 mm)
295	29.5 in. (749 mm)
30	30 in. (762 mm)
SOE Style Only
10	10 in. (254 mm)
20	20 in. (508 mm)
30	30 in. (762 mm)
40	40" (1016 mm)

Table 2 - 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 and external 226 O-rings

Table 3 - O-ring Seal Material

Code	Description
S	Silicone Elastomer
E	Ethylene Propylene Rubber

M3 and M7 adaptor styles only